/* ==========================================================================
   Pastfolio · Liquid Glass design system
   Translucent layered materials over a slowly drifting colour field,
   specular rims and sheen, capsule controls with a springy sliding lens.
   Every colour a chart reads is a custom property here.
   ========================================================================== */

:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, "Segoe UI", Roboto, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, sans-serif;
  --font-num: var(--font);
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --spring: cubic-bezier(0.34, 1.45, 0.55, 1);
  --dur: 0.28s;
  --maxw: 1240px;
  --gutter: clamp(16px, 3vw, 32px);
  --r-xs: 8px; --r-sm: 12px; --r-md: 16px; --r-lg: 22px; --r-xl: 28px; --r-pill: 999px;
  --blur: blur(30px) saturate(190%);
  --blur-strong: blur(40px) saturate(200%);
}

/* ---------------------------------------------------------------- dark (default) */
:root, :root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #07080c;
  --blob-1: rgba(40, 110, 255, 0.40);
  --blob-2: rgba(140, 70, 255, 0.32);
  --blob-3: rgba(20, 170, 150, 0.26);
  --blob-4: rgba(255, 110, 70, 0.20);

  --glass: rgba(40, 40, 48, 0.46);
  --glass-strong: rgba(54, 54, 64, 0.62);
  --glass-thin: rgba(255, 255, 255, 0.06);
  --glass-edge: rgba(255, 255, 255, 0.20);
  --glass-edge-low: rgba(255, 255, 255, 0.05);
  --glass-shadow: 0 14px 44px rgba(0, 0, 0, 0.42), 0 1px 3px rgba(0, 0, 0, 0.3);
  --glass-shine: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 38%);
  --rim-a: rgba(255, 255, 255, 0.42);
  --rim-b: rgba(255, 255, 255, 0.03);
  --spec: rgba(255, 255, 255, 0.10);
  --lens: rgba(255, 255, 255, 0.13);

  --ink: #f5f5f7;
  --ink-2: #c7c7cc;
  --muted: #98989f;   /* ≥4.5:1 on the lightest dark glass */
  --sep: rgba(235, 235, 245, 0.12);
  --surface: #1c1c21;
  --surface-2: rgba(255, 255, 255, 0.07);
  --surface-3: rgba(255, 255, 255, 0.14);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --fg: var(--ink); --fg-dim: var(--ink-2); --fg-faint: var(--muted);

  --accent: #0a84ff;
  --accent-2: #5ac8fa;
  --accent-3: #bf5af2;
  --accent-soft: rgba(10, 132, 255, 0.18);
  --accent-ink: #ffffff;
  --accent-fg: #4da3ff;   /* accent as text: ≥4.5:1 on dark glass and on --accent-soft */
  --accent-fill: #0071e3; /* accent behind white text: ≥4.5:1 */
  --pos: #30d158; --neg: #ff6961;
  --good: #30d158; --bad: #ff6961;

  /* What If charts */
  --grid: rgba(235, 235, 245, 0.07);
  --grid-zero: rgba(235, 235, 245, 0.2);
  --price: #8e8e96;
  --price-fill: rgba(142, 142, 150, 0.16);
  --shade: rgba(255, 105, 97, 0.09);
  --mask: rgba(12, 12, 16, 0.55);
  --s-bank: #aeb4c2;
  --s-lump: #ffb340;
  --s-dca: #64a8ff;
  --s-va: #c38bff;
  --s-trend: #34d399;

  /* Explorer charts (hex where app.js mixes alpha in) */
  --axis: rgba(235, 235, 245, 0.18);
  --series-1: #4c9bff;
  --ath: #c7c7cc;
  --under: #ff6961;
  --band: rgba(255, 105, 97, 0.07);
  --div-neg: #e66767;
  --div-mid: #3a3a40;
  --div-pos: #3987e5;
}

/* ---------------------------------------------------------------- light */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef1f7;
  --blob-1: rgba(64, 140, 255, 0.50);
  --blob-2: rgba(175, 110, 255, 0.38);
  --blob-3: rgba(40, 200, 170, 0.34);
  --blob-4: rgba(255, 150, 110, 0.34);

  --glass: rgba(255, 255, 255, 0.50);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-thin: rgba(255, 255, 255, 0.40);
  --glass-edge: rgba(255, 255, 255, 0.85);
  --glass-edge-low: rgba(255, 255, 255, 0.28);
  --glass-shadow: 0 14px 44px rgba(30, 40, 70, 0.10), 0 1px 3px rgba(30, 40, 70, 0.06);
  --glass-shine: linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0) 42%);
  --rim-a: rgba(255, 255, 255, 0.98);
  --rim-b: rgba(255, 255, 255, 0.22);
  --spec: rgba(255, 255, 255, 0.55);
  --lens: rgba(255, 255, 255, 0.92);

  --ink: #1d1d1f;
  --ink-2: #45454b;
  --muted: #5f5f66;
  --sep: rgba(60, 60, 67, 0.13);
  --surface: #fbfbfd;
  --surface-2: rgba(120, 120, 128, 0.10);
  --surface-3: rgba(120, 120, 128, 0.18);
  --border: rgba(60, 60, 67, 0.10);
  --border-strong: rgba(60, 60, 67, 0.20);

  --accent: #0066cc;
  --accent-fg: var(--accent);
  --accent-fill: var(--accent);
  --accent-2: #32ade6;
  --accent-3: #af52de;
  --accent-soft: rgba(0, 113, 227, 0.12);
  --pos: #157a35; --neg: #c43333;
  --good: #157a35; --bad: #c43333;

  --grid: rgba(60, 60, 67, 0.09);
  --grid-zero: rgba(60, 60, 67, 0.25);
  --price: #8a8d94;
  --price-fill: rgba(138, 141, 148, 0.16);
  --shade: rgba(214, 58, 58, 0.07);
  --mask: rgba(255, 255, 255, 0.55);
  --s-bank: #7d8494;
  --s-lump: #c27500;
  --s-dca: #0071e3;
  --s-va: #9a4fc4;
  --s-trend: #0f8a43;

  --axis: rgba(60, 60, 67, 0.22);
  --series-1: #2a78d6;
  --ath: #48484d;
  --under: #e34948;
  --band: rgba(227, 73, 72, 0.08);
  --div-neg: #e34948;
  --div-mid: #f0efec;
  --div-pos: #2a78d6;
}

/* ---------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--bg); -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; }
body {
  margin: 0;
  min-height: 100vh;
  background: transparent;
  color: var(--ink);
  font: 15px/1.5 var(--font);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
:root.theme-anim body, :root.theme-anim .glass, :root.theme-anim .backdrop { transition: background-color .45s var(--ease), color .45s var(--ease); }
a { color: var(--accent-fg); }
button, input, select { font: inherit; color: inherit; }
.num { font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.dim { color: var(--ink-2); }
.faint { color: var(--muted); }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 2px; border-radius: 8px; }

/* colour field the glass refracts */
.backdrop { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; background: var(--bg); }
/* No filter: the radial gradients are already soft, and a blur on four viewport-sized layers that
   move every frame costs GPU time on each scroll frame (and battery). */
.backdrop i { position: absolute; border-radius: 50%; will-change: transform; }
.backdrop .b1 { width: 62vmax; height: 62vmax; left: -16vmax; top: -22vmax; background: radial-gradient(circle, var(--blob-1), transparent 66%); animation: drift1 38s ease-in-out infinite alternate; }
.backdrop .b2 { width: 56vmax; height: 56vmax; right: -18vmax; top: -8vmax; background: radial-gradient(circle, var(--blob-2), transparent 66%); animation: drift2 46s ease-in-out infinite alternate; }
.backdrop .b3 { width: 64vmax; height: 64vmax; right: -14vmax; bottom: -30vmax; background: radial-gradient(circle, var(--blob-3), transparent 66%); animation: drift3 52s ease-in-out infinite alternate; }
.backdrop .b4 { width: 50vmax; height: 50vmax; left: -12vmax; bottom: -22vmax; background: radial-gradient(circle, var(--blob-4), transparent 66%); animation: drift4 44s ease-in-out infinite alternate; }
@keyframes drift1 { to { transform: translate3d(14vmax, 10vmax, 0) scale(1.12); } }
@keyframes drift2 { to { transform: translate3d(-12vmax, 14vmax, 0) scale(0.92); } }
@keyframes drift3 { to { transform: translate3d(-16vmax, -10vmax, 0) scale(1.08); } }
@keyframes drift4 { to { transform: translate3d(12vmax, -12vmax, 0) scale(1.1); } }

/* ---------------------------------------------------------------- the glass material */
.glass, .brand, .tabs, .icon-btn,
#room-whatif .card, .scard, #room-explorer .card, .controls, .lesson, .stat, .story-card, .mode, .mt, .pick-out {
  position: relative;
  isolation: isolate;
  background: var(--glass);
  box-shadow:
    inset 0 1px 0 var(--glass-edge),
    inset 0 -1px 0 var(--glass-edge-low),
    var(--glass-shadow);
}
/* A live backdrop blur only where content scrolls underneath: the floating bar (and the sticky
   controls and tooltips, which set their own). Cards in the page sit over the soft colour field,
   where a blur looks the same but has to be recomputed on every scroll frame for every card. */
.brand, .tabs, .icon-btn {
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
}
/* liquid rim: a light-catching edge, bright top-left, fading round the sides */
.glass::before, .brand::before, .tabs::before, .icon-btn::before,
#room-whatif .card::before, .scard::after, #room-explorer .card::before, .controls::before, .lesson::before, .stat::before, .story-card::before, .mode::before, .mt::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  pointer-events: none;
  background: linear-gradient(140deg, var(--rim-a) 0%, var(--rim-b) 32%, transparent 55%, var(--rim-b) 78%, color-mix(in srgb, var(--rim-a) 60%, transparent) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 2;
}
/* sheen, plus a specular highlight that follows the pointer on .spec elements */
.glass::after, #room-whatif .card::after, #room-explorer .card::after, .lesson::after, .mt::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: var(--glass-shine);
  z-index: -1;
}
.spec.lit::after {
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%), var(--spec), transparent 62%), var(--glass-shine);
}

/* ---------------------------------------------------------------- floating top bar */
.topbar {
  position: fixed; top: 12px; left: 0; right: 0; z-index: 100;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px;
  padding: 0 var(--gutter);
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.brand {
  justify-self: start;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 5px 16px 5px 5px; border-radius: var(--r-pill);
  color: var(--ink); text-decoration: none;
  font: 700 16px/1 var(--font-display); letter-spacing: -0.02em;
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(140deg, var(--accent-2), var(--accent) 55%, var(--accent-3));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45), 0 4px 14px color-mix(in srgb, var(--accent) 45%, transparent);
}
.brand-mark svg { width: 22px; height: 22px; }

.tabs {
  display: flex; gap: 2px; padding: 5px;
  border-radius: var(--r-pill);
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--blur-strong); backdrop-filter: var(--blur-strong);
}
.tabs a {
  position: relative; z-index: 3;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 17px; border-radius: var(--r-pill);
  color: var(--ink-2); text-decoration: none;
  font-weight: 600; font-size: 14px; white-space: nowrap;
  transition: color .25s var(--ease), padding .35s var(--ease);
}
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--accent-fg); }
:root:not([data-theme="light"]) .tabs a[aria-current="page"] { color: color-mix(in srgb, var(--accent) 72%, #fff); }
.tabs a svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.tabs a svg .fill { fill: currentColor; stroke: none; }
.tabs .lens {
  position: absolute; left: 0; top: 0; z-index: 1;
  width: var(--w, 0); height: var(--h, 0);
  transform: translate(var(--x, 0), var(--y, 0));
  border-radius: var(--r-pill);
  background: var(--lens);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.55),
    inset 0 -1px 1px rgba(255,255,255,.12),
    inset 0 0 0 0.5px rgba(255,255,255,.18),
    0 3px 12px rgba(0,0,0,.16);
  transition: transform .55s var(--spring), width .55s var(--spring), height .3s var(--ease), scale .25s var(--spring), opacity .2s;
}
.tabs.squish .lens { scale: 1.06 0.9; }
.tabs.no-anim .lens { transition: none; }
.scrolled .tabs a { padding: 7px 15px; }

.icon-btn {
  justify-self: end;
  width: 44px; height: 44px; border-radius: 50%; border: 0;
  display: grid; place-items: center; cursor: pointer; color: var(--ink);
  transition: transform .3s var(--spring);
}
.icon-btn:hover { transform: scale(1.06); }
.icon-btn:active { transform: scale(0.92); }
.icon-btn svg { width: 19px; height: 19px; position: relative; z-index: 3; }
:root[data-theme="light"] .icon-sun { display: none; }
:root:not([data-theme="light"]) .icon-moon { display: none; }

/* ---------------------------------------------------------------- shared atoms */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: var(--r-pill); border: 0;
  font-weight: 600; font-size: 15px; text-decoration: none; cursor: pointer; white-space: nowrap;
  color: var(--ink);
  transition: transform .3s var(--spring), box-shadow .3s var(--ease), background .3s var(--ease);
}
.btn:active { transform: scale(0.96); }
.btn.primary {
  color: #fff;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent-fill) 84%, #fff), var(--accent-fill) 60%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.4), 0 6px 20px color-mix(in srgb, var(--accent) 40%, transparent);
}
.btn.primary:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255,255,255,.4), 0 10px 28px color-mix(in srgb, var(--accent) 50%, transparent); }
.btn.glassy {
  background: var(--glass-thin);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
}
.btn.glassy:hover { background: var(--glass-strong); }
.btn.ghost { background: transparent; color: var(--ink-2); }
.btn.ghost:hover { color: var(--ink); background: var(--surface-2); }
.btn.small { padding: 8px 15px; font-size: 13.5px; }

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 15px; border-radius: var(--r-pill); border: 0;
  background: var(--glass-thin);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  color: var(--ink); font-size: 13.5px; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: transform .3s var(--spring), background .2s, color .2s;
}
.pill:hover { background: var(--accent-soft); color: var(--accent-fg); }
.pill:active { transform: scale(0.95); }
.pill.static { cursor: default; color: var(--ink-2); }
.pill.static:hover { background: var(--glass-thin); color: var(--ink-2); }

.eyebrow {
  margin: 0 0 10px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent-fg);
}
.live { width: 8px; height: 8px; border-radius: 50%; background: var(--pos); box-shadow: 0 0 0 0 color-mix(in srgb, var(--pos) 60%, transparent); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.grad {
  background: linear-gradient(100deg, var(--accent-2), var(--accent) 45%, var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.avatar {
  width: 52px; height: 52px; flex-shrink: 0; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(140deg, var(--accent-2), var(--accent) 55%, var(--accent-3));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45), 0 8px 22px color-mix(in srgb, var(--accent) 40%, transparent);
}
.avatar svg { width: 30px; height: 30px; }
.avatar.sm { width: 38px; height: 38px; }
.avatar.sm svg { width: 22px; height: 22px; }

.sk { min-height: 92px; background: linear-gradient(90deg, var(--glass-thin) 0%, var(--surface-3) 50%, var(--glass-thin) 100%) 0 0 / 200% 100%; animation: shimmer 1.4s linear infinite; border-radius: var(--r-lg); }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

.error { margin: 14px 0 0; padding: 10px 14px; border-radius: var(--r-sm); background: color-mix(in srgb, var(--neg) 14%, transparent); color: var(--neg); font-size: 14px; }
/* Footers span the full width of the room: the notes flow into as many columns as fit, so lines
   stay readable on wide screens instead of leaving the right side of the page empty. */
.foot {
  margin: 34px 0 8px; padding-top: 18px; border-top: 1px solid var(--sep);
  color: var(--muted); font-size: 12.5px; line-height: 1.6;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 10px 32px;
}
.foot p { margin: 0; }
.foot a { color: var(--ink-2); }
.foot b { color: var(--ink-2); }
.disclaimer { margin: 26px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.disclaimer b { color: var(--ink-2); }

/* ---------------------------------------------------------------- rooms */
.room { max-width: var(--maxw); margin: 0 auto; padding: 92px var(--gutter) 64px; }
.room.enter { animation: room-in .55s var(--ease) both; }
@keyframes room-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.room-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; flex-wrap: wrap; margin: 12px 4px 22px; }
.room-title { margin: 0; font: 700 clamp(30px, 4.2vw, 46px)/1.06 var(--font-display); letter-spacing: -0.035em; }
.room-sub { margin: 8px 0 0; font-size: 17px; color: var(--ink-2); max-width: 64ch; }
.room-head .hint { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.sec-title { margin: 0; font: 700 26px/1.15 var(--font-display); letter-spacing: -0.03em; }
.sec-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }

/* ================================================================ GUIDE (home) */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1fr); gap: clamp(20px, 4vw, 48px);
  align-items: center;
  margin-top: 14px; padding: clamp(26px, 5vw, 56px);
  border-radius: 36px;
}
.hero h1 { margin: 0; font: 700 clamp(34px, 5.2vw, 62px)/1.04 var(--font-display); letter-spacing: -0.04em; }
.lead { margin: 18px 0 0; font-size: clamp(16px, 1.6vw, 19px); line-height: 1.55; color: var(--ink-2); max-width: 54ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-stats { display: grid; gap: 12px; }
.hstat {
  padding: 16px 20px; border-radius: var(--r-lg);
  background: var(--glass-thin);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  animation: rise .6s var(--ease) both;
}
.hstat:nth-child(2) { animation-delay: .08s; } .hstat:nth-child(3) { animation-delay: .16s; }
.hstat b { display: block; font: 700 34px/1.1 var(--font-display); letter-spacing: -0.035em; font-variant-numeric: tabular-nums; }
.hstat span { display: block; margin-top: 4px; font-size: 13.5px; color: var(--ink-2); line-height: 1.4; }
.hstat.sk { min-height: 86px; animation: shimmer 1.4s linear infinite; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* check-in */
.checkin { margin-top: 26px; scroll-margin-top: 12px; }
.ci-wrap { border-radius: 32px; padding: clamp(20px, 3.4vw, 34px); }
.ci-head { display: flex; gap: 16px; align-items: center; }
.ci-head h2 { margin: 0; font: 700 24px/1.15 var(--font-display); letter-spacing: -0.03em; }
.ci-head p { margin: 4px 0 0; color: var(--ink-2); font-size: 15px; max-width: 70ch; }
.ci-progress { height: 6px; border-radius: 99px; background: var(--sep); margin: 22px 0 6px; overflow: hidden; }
.ci-progress i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--accent-2), var(--accent), var(--accent-3)); transition: width .6s var(--spring); }
.ci-body { padding-top: 10px; }
.ci-body.enter { animation: step-in .45s var(--ease) both; }
@keyframes step-in { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: none; } }
.ci-count { margin: 6px 0 4px; font-size: 12.5px; font-weight: 600; color: var(--muted); letter-spacing: 0.02em; }
.ci-body h3 { margin: 0; font: 700 clamp(22px, 2.6vw, 30px)/1.2 var(--font-display); letter-spacing: -0.03em; max-width: 34ch; }
.ci-help { margin: 8px 0 18px; color: var(--ink-2); max-width: 70ch; }
.ci-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.opt {
  position: relative; text-align: left; cursor: pointer; border: 0;
  padding: 18px 20px; border-radius: var(--r-lg);
  background: var(--glass-thin);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  transition: transform .35s var(--spring), background .25s, box-shadow .25s;
}
.opt b { display: block; font-size: 17px; font-weight: 650; letter-spacing: -0.02em; }
.opt span { display: block; margin-top: 3px; color: var(--muted); font-size: 13.5px; }
.opt:hover { transform: translateY(-2px); background: var(--glass-strong); }
.opt:active { transform: scale(0.97); }
.opt[aria-pressed="true"] { background: var(--accent-soft); box-shadow: inset 0 0 0 2px var(--accent), inset 0 1px 0 var(--glass-edge); }
.opt[aria-pressed="true"] b { color: var(--accent-fg); }
.ci-amount {
  display: inline-flex; align-items: baseline; gap: 6px;
  padding: 10px 22px; border-radius: var(--r-xl);
  background: var(--glass-thin);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  font: 700 clamp(32px, 4vw, 44px)/1.1 var(--font-display); letter-spacing: -0.035em;
}
.ci-amount:focus-within { box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 2px var(--accent); }
.ci-amount .cur { color: var(--muted); }
.ci-amount .per { font-size: 17px; font-weight: 600; color: var(--muted); letter-spacing: -0.01em; }
.ci-amount input { width: 7ch; border: 0; background: none; outline: none; font: inherit; letter-spacing: inherit; color: var(--ink); -moz-appearance: textfield; }
.ci-amount input::-webkit-outer-spin-button, .ci-amount input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.ci-presets { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.ci-nav { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }

/* report */
.report { animation: rise .6s var(--ease) both; }
.rep-head { display: flex; gap: 18px; align-items: flex-start; padding: clamp(20px, 3vw, 30px); border-radius: 32px; }
.rep-head h2 { margin: 0; font: 700 clamp(24px, 3vw, 34px)/1.12 var(--font-display); letter-spacing: -0.035em; }
.rep-head .eyebrow { margin-bottom: 6px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.rep-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.rcard { border-radius: 28px; padding: 22px 22px 18px; animation: rise .6s var(--ease) both; }
.rcard:nth-child(2) { animation-delay: .06s; } .rcard:nth-child(3) { animation-delay: .12s; } .rcard:nth-child(4) { animation-delay: .18s; }
.rcard.wide { grid-column: 1 / -1; }
.rcard p { margin: 10px 0 0; color: var(--ink-2); line-height: 1.55; }
.rcard p b { color: var(--ink); }
.rc-top { display: flex; align-items: center; gap: 10px; }
.rc-ic { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; color: var(--accent-fg); background: var(--accent-soft); }
.rc-ic svg { width: 19px; height: 19px; }
.rc-k { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.rc-big { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-top: 14px; }
.rc-big b { font: 700 clamp(38px, 4.4vw, 52px)/1 var(--font-display); letter-spacing: -0.045em; font-variant-numeric: tabular-nums; }
.rc-big span { color: var(--ink-2); font-size: 15px; max-width: 32ch; }
.figs { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 14px 0 4px; }
.figs > div { padding: 12px 14px; border-radius: var(--r-md); background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); }
.figs b { display: block; font: 700 22px/1.15 var(--font-display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.figs span { display: block; margin-top: 3px; font-size: 12.5px; color: var(--muted); line-height: 1.35; }
.histo { display: block; width: 100%; height: auto; margin-top: 16px; overflow: visible; }
.histo rect { transition: opacity .2s; }
.histo rect.pos { fill: var(--pos); opacity: .72; }
.histo rect.neg { fill: var(--neg); opacity: .72; }
.histo rect.mid { fill: var(--muted); opacity: .6; }
.histo rect:hover { opacity: 1; }
.histo .zero { stroke: var(--ink-2); stroke-width: 1; stroke-dasharray: 3 3; }
.histo .median { stroke: var(--accent); stroke-width: 2; }
.histo .median-l { fill: var(--accent-fg); font-size: 11px; font-weight: 700; }
.histo text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.cap { font-size: 12.5px !important; color: var(--muted) !important; }
.callout { padding: 13px 16px; border-radius: var(--r-md); background: var(--accent-soft); color: var(--ink) !important; }
.rep-sub { margin: 30px 4px 14px; font: 700 22px/1.2 var(--font-display); letter-spacing: -0.03em; }
.rep-next { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.next { display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 26px; color: var(--ink); text-decoration: none; transition: transform .4s var(--spring), box-shadow .3s; }
.next b { font-size: 17px; letter-spacing: -0.02em; }
.next span:last-child { color: var(--ink-2); font-size: 14px; }
.n-k { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--accent-fg); }
.rep-loading { padding: 40px; text-align: center; color: var(--muted); }

/* tools */
.tools { margin-top: 44px; }
.tools .sec-title { margin: 0 4px 16px; }
.tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tool { display: block; padding: 24px 26px 26px; border-radius: 32px; color: var(--ink); text-decoration: none; transition: transform .45s var(--spring), box-shadow .3s; }
.tool h3 { margin: 0; font: 700 26px/1.15 var(--font-display); letter-spacing: -0.03em; }
.tool p { color: var(--ink-2); margin: 8px 0 0; max-width: 58ch; }
.tool .eyebrow { margin: 16px 0 6px; }
.go { display: inline-block; margin-top: 16px; color: var(--accent-fg); font-weight: 600; }
.tool:hover, .idea:hover, .next:hover { transform: translateY(-4px); }
.tool:active, .idea:active, .next:active { transform: scale(0.985); }
.tool-art { display: block; width: 100%; height: 90px; overflow: visible; }
.tool-art path { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.ta-bank { stroke: var(--s-bank); stroke-dasharray: 6 6; stroke-width: 2 !important; }
.ta-dca { stroke: var(--s-dca); }
.ta-lump { stroke: var(--s-lump); }
.ta-line { stroke: var(--series-1); }
.ta-area { fill: color-mix(in srgb, var(--series-1) 18%, transparent) !important; stroke: none; }

/* ideas */
.ideas-sec { margin-top: 44px; }
.ideas-sec .sec-row { margin: 0 4px 16px; }
.idea-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.idea { display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 26px; color: var(--ink); text-decoration: none; transition: transform .45s var(--spring); }
.idea.sk { min-height: 200px; }
.idea-ic { width: 40px; height: 40px; border-radius: 13px; display: grid; place-items: center; color: #fff; background: linear-gradient(140deg, var(--accent-2), var(--accent) 60%, var(--accent-3)); box-shadow: inset 0 1px 0 rgba(255,255,255,.4); margin-bottom: 6px; }
.idea-ic svg { width: 22px; height: 22px; }
.idea-k { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.idea-t { font: 700 19px/1.2 var(--font-display); letter-spacing: -0.025em; }
.idea-p { color: var(--ink-2); font-size: 14.5px; line-height: 1.5; flex: 1; }
.idea-go { color: var(--accent-fg); font-weight: 600; font-size: 14px; margin-top: 6px; }

/* ================================================================ LEARN */
.toc { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px; border-radius: 26px; margin-bottom: 18px; }
.toc-i { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px 8px 8px; border-radius: var(--r-pill); color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600; transition: background .2s; }
.toc-i span { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; background: var(--accent-soft); color: var(--accent-fg); }
.toc-i:hover { background: var(--glass-thin); }
.lessons-x { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; }
.lesson-x { padding: clamp(20px, 3.4vw, 34px); border-radius: 32px; scroll-margin-top: 12px; }
.lesson-x.sk { min-height: 260px; }
.lx-head { display: flex; gap: 16px; align-items: center; margin-bottom: 8px; }
.lx-ic { width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center; color: #fff; flex-shrink: 0; background: linear-gradient(140deg, var(--accent-2), var(--accent) 60%, var(--accent-3)); box-shadow: inset 0 1px 0 rgba(255,255,255,.4), 0 8px 22px color-mix(in srgb, var(--accent) 35%, transparent); }
.lx-ic svg { width: 28px; height: 28px; }
.lx-k { margin: 0; font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--accent-fg); }
.lesson-x h2 { margin: 2px 0 0; font: 700 clamp(22px, 2.8vw, 30px)/1.15 var(--font-display); letter-spacing: -0.03em; }
.lx-body p { color: var(--ink-2); font-size: 16px; line-height: 1.62; max-width: 76ch; }
.lx-body p b { color: var(--ink); }
.lx-body .figs { max-width: 760px; }
.lesson-x .btn { margin-top: 8px; }
.panel { margin-top: 18px; padding: clamp(20px, 3.4vw, 32px); border-radius: 32px; scroll-margin-top: 12px; }
.panel h2 { margin: 0 0 6px; font: 700 24px/1.2 var(--font-display); letter-spacing: -0.03em; }
.panel p { color: var(--ink-2); line-height: 1.6; max-width: 95ch; }
.defs { margin: 0; display: grid; grid-template-columns: minmax(180px, 260px) 1fr; gap: 0 24px; }
.defs dt { font-weight: 650; padding: 13px 0; border-top: 1px solid var(--sep); display: flex; align-items: baseline; gap: 9px; }
.defs dd { margin: 0; padding: 13px 0; border-top: 1px solid var(--sep); color: var(--ink-2); line-height: 1.55; }
.defs dt:first-of-type, .defs dt:first-of-type + dd { border-top: 0; }
.defs dt i { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; transform: translateY(-1px); }

/* guide tips (in the tool rooms) */
.guide-tips { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 18px; padding: 18px 20px; border-radius: 28px; }
.gt-h { display: flex; gap: 12px; align-items: center; }
.gt-h b { display: block; font-size: 15px; }
.gt-h span:not(.avatar) { display: block; font-size: 13.5px; color: var(--muted); }
.gt-list { display: flex; flex-wrap: wrap; gap: 8px; }

/* ================================================================ WHAT IF (scoped) */
#room-whatif {
  .card { border-radius: var(--r-xl); }
  .card + .card, .section { margin-top: 18px; }
  .card-pad { padding: clamp(16px, 2.6vw, 24px); }
  .card-title { margin: 0; font: 700 18px/1.25 var(--font-display); letter-spacing: -0.02em; }
  .card-sub { margin: 4px 0 0; font-size: 13.5px; color: var(--ink-2); }

  .seg {
    position: relative; display: inline-flex; padding: 3px; border-radius: var(--r-pill);
    background: var(--sep); box-shadow: inset 0 1px 2px rgba(0,0,0,0.08); isolation: isolate;
  }
  .seg button {
    position: relative; z-index: 1; border: 0; background: none;
    padding: 6px 14px; border-radius: var(--r-pill);
    font-size: 13.5px; font-weight: 600; color: var(--ink-2); cursor: pointer; white-space: nowrap;
    transition: color .2s var(--ease), transform .15s;
  }
  .seg button:hover { color: var(--ink); }
  .seg button:active { transform: scale(.95); }
  .seg button[aria-pressed="true"] { color: var(--ink); }
  .seg button:disabled { opacity: .35; cursor: default; }
  .seg .thumb {
    position: absolute; z-index: 0; top: 3px; bottom: 3px; left: 0;
    width: var(--w, 0); transform: translateX(var(--x, 0));
    border-radius: var(--r-pill);
    background: var(--lens);
    -webkit-backdrop-filter: blur(12px) saturate(200%); backdrop-filter: blur(12px) saturate(200%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.5), 0 2px 8px rgba(0,0,0,.14);
    transition: transform .5s var(--spring), width .5s var(--spring);
  }
  .seg.no-anim .thumb { transition: none; }
  .seg-assets { background: var(--glass); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: inset 0 1px 0 var(--glass-edge), var(--glass-shadow); padding: 4px; }
  .seg-assets .thumb { top: 4px; bottom: 4px; background: var(--accent-fill); box-shadow: inset 0 1px 0 rgba(255,255,255,.35), 0 4px 14px color-mix(in srgb, var(--accent) 45%, transparent); }
  .seg-assets button { padding: 8px 18px; font-size: 14px; }
  .seg-assets button[aria-pressed="true"] { color: #fff; }

  .qcard { padding: clamp(22px, 4vw, 40px); border-radius: 32px; }
  .question { margin: 0; font: 700 clamp(1.45rem, 3.4vw, 2.4rem)/1.32 var(--font-display); letter-spacing: -0.035em; max-width: 32ch; }
  .question .ctl {
    display: inline-flex; align-items: baseline; border: 0;
    padding: 0 10px; margin: 2px 0; border-radius: var(--r-pill);
    background: var(--accent-soft); color: var(--accent-fg);
    box-shadow: inset 0 1px 0 var(--glass-edge-low), inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
    font: inherit; letter-spacing: inherit; cursor: pointer;
    transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  }
  .question .ctl:hover, .question .ctl:focus-within, .question .ctl:focus-visible {
    background: color-mix(in srgb, var(--accent) 24%, transparent); outline: none;
    box-shadow: inset 0 0 0 2px var(--accent);
  }
  .question select.ctl { appearance: none; -webkit-appearance: none; }
  .question select.ctl option { color: var(--ink); background: var(--surface); font-size: 1rem; }
  .question .ctl input { border: 0; background: none; color: inherit; font: inherit; letter-spacing: inherit; padding: 0; outline: none; width: 4ch; -moz-appearance: textfield; }
  .question .ctl input::-webkit-outer-spin-button, .question .ctl input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
  .question .date-ctl { position: relative; white-space: nowrap; }
  .question .date-ctl input[type="date"] { position: absolute; left: 0; bottom: 0; width: 1px; height: 1px; opacity: 0; pointer-events: none; border: 0; padding: 0; }

  .answer { margin: 20px 0 0; font-size: clamp(1.05rem, 2vw, 1.28rem); line-height: 1.55; color: var(--ink-2); max-width: 62ch; min-height: 2.6em; }
  .answer b { color: var(--ink); font-weight: 700; }
  .answer .big { font-size: 1.35em; color: var(--ink); font-weight: 700; letter-spacing: -0.03em; }
  .answer .tag-bank { color: var(--s-bank); font-weight: 700; }

  .toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding: 16px clamp(14px, 2.4vw, 22px) 0; }
  .toolbar .grow, .range-row .grow { flex: 1; }
  .chips { display: flex; flex-wrap: wrap; gap: 8px; }
  .chip {
    --c: var(--ink-2);
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 14px 7px 11px; border-radius: var(--r-pill); border: 0;
    background: var(--glass-thin);
    box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
    color: var(--ink-2); font-size: 13.5px; font-weight: 600; cursor: pointer; user-select: none;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform .3s var(--spring);
  }
  .chip:active { transform: scale(0.95); }
  .chip .dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--c); background: transparent; transition: background var(--dur) var(--ease); }
  .chip[aria-pressed="true"] { color: var(--ink); background: color-mix(in srgb, var(--c) 16%, var(--glass-thin)); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px color-mix(in srgb, var(--c) 50%, transparent); }
  .chip[aria-pressed="true"] .dot { background: var(--c); }
  .chip-bank { cursor: default; }
  .chip-bank:active { transform: none; }
  .chip-bank .dot { border-style: dashed; background: none !important; }
  .chip-bank input { width: 3.4ch; border: 0; border-bottom: 1px dashed var(--muted); background: none; text-align: right; font-size: 13.5px; font-variant-numeric: tabular-nums; color: var(--ink); padding: 0; outline: none; -moz-appearance: textfield; }
  .chip-bank input:focus { border-bottom-color: var(--accent); }
  .chip-bank input::-webkit-outer-spin-button, .chip-bank input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

  .chart-box { position: relative; height: clamp(280px, 44vh, 440px); margin: 10px 0 0; touch-action: pan-y; }
  .chart-box svg { display: block; width: 100%; height: 100%; overflow: visible; }
  .chart-box .grid line { stroke: var(--grid); stroke-width: 1; }
  .chart-box .axis text, .nav-box .axis text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
  .chart-box .series path { fill: none; stroke-linejoin: round; stroke-linecap: round; transition: opacity .25s var(--ease), stroke-width .25s var(--ease); }
  .chart-box .series path.area { stroke: none; }
  .chart-box.has-focus .series path:not(.is-focus) { opacity: .18; }
  .chart-box .shade rect { fill: var(--shade); }
  .chart-box .cross line { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }
  .chart-box .cross circle { stroke: var(--surface); stroke-width: 2; }
  .chart-box .end-label text { font-size: 11px; font-weight: 700; }

  .tooltip {
    position: absolute; top: 0; left: 0; z-index: 5; pointer-events: none; min-width: 210px;
    padding: 11px 13px; border-radius: var(--r-md);
    background: var(--glass-strong);
    -webkit-backdrop-filter: var(--blur-strong); backdrop-filter: var(--blur-strong);
    box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low), 0 18px 44px rgba(0,0,0,.3);
    font-size: 12.5px; opacity: 0; transition: opacity .15s var(--ease);
  }
  .tooltip.show { opacity: 1; }
  .tooltip .tt-date { font-weight: 700; margin-bottom: 6px; }
  .tooltip .tt-row { display: grid; grid-template-columns: 10px 1fr auto; align-items: center; gap: 8px; padding: 2px 0; }
  .tooltip .tt-row i { width: 8px; height: 8px; border-radius: 50%; }
  .tooltip .tt-row b { font-weight: 650; font-variant-numeric: tabular-nums; }
  .tooltip .tt-foot { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--sep); color: var(--ink-2); display: flex; justify-content: space-between; gap: 12px; }

  .range-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 16px clamp(14px, 2.4vw, 22px) 8px; border-top: 1px solid var(--sep); margin-top: 6px; }
  .range-text { font-size: 13.5px; color: var(--ink-2); }
  .range-text b { color: var(--ink); font-weight: 600; }
  .seg-presets button { padding: 5px 12px; font-size: 12.5px; }

  .nav-box { position: relative; height: 108px; margin: 0 clamp(14px, 2.4vw, 22px); user-select: none; -webkit-user-select: none; touch-action: none; }
  .nav-box svg { display: block; width: 100%; height: 100%; cursor: crosshair; outline: none; }
  .nav-box .price-area { fill: var(--price-fill); }
  .nav-box .price-line { fill: none; stroke: var(--price); stroke-width: 1.2; }
  .nav-box .mask { fill: var(--mask); }
  .nav-box .brush { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.5; cursor: grab; }
  .nav-box.dragging .brush { cursor: grabbing; }
  .nav-box .handle { cursor: ew-resize; }
  .nav-box .handle rect.grip { fill: var(--accent); }
  .nav-box .handle rect.hit { fill: transparent; }
  .nav-box .handle line { stroke: var(--accent-ink); stroke-width: 1.2; }
  .nav-box .hover-line { stroke: var(--ink-2); stroke-width: 1; stroke-dasharray: 2 2; }
  .nav-box svg:focus-visible .brush { stroke-width: 2.5; }

  .strip-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; padding: 8px clamp(14px, 2.4vw, 22px) 18px; font-size: 12px; color: var(--muted); }
  .strip-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

  .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-top: 18px; }
  .scard {
    --c: var(--ink-2);
    padding: 18px 18px 16px; border-radius: 26px; overflow: hidden;
    transition: transform .4s var(--spring), opacity .3s var(--ease);
    animation: card-in .5s var(--ease) both;
  }
  .scard::before {
    content: ""; position: absolute; left: 18px; right: 18px; top: 0; height: 3px; border-radius: 0 0 4px 4px;
    background: var(--c); box-shadow: 0 0 16px var(--c); z-index: 3;
  }
  .scard:hover { transform: translateY(-3px); }
  .scard-head { display: flex; align-items: center; gap: 8px; }
  .scard-head .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--c); flex-shrink: 0; }
  .scard-name { font-weight: 700; font-size: 15px; letter-spacing: -0.015em; }
  .badge { margin-left: auto; padding: 3px 9px; border-radius: var(--r-pill); font-size: 10.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; background: var(--accent-soft); color: var(--accent-fg); white-space: nowrap; }
  .badge.badge-bank { background: var(--surface-2); color: var(--ink-2); }
  .scard-blurb { margin: 6px 0 12px; font-size: 12.5px; color: var(--ink-2); line-height: 1.45; min-height: 2.9em; }
  .scard-value { font: 700 1.75rem/1.1 var(--font-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
  .scard-gain { margin-top: 4px; font-size: 13.5px; font-variant-numeric: tabular-nums; }
  .scard-vs { margin-top: 10px; padding: 8px 11px; border-radius: var(--r-sm); background: var(--glass-thin); box-shadow: inset 0 0 0 1px var(--glass-edge-low); font-size: 12.5px; color: var(--ink-2); }
  .kv { display: grid; grid-template-columns: 1fr auto; gap: 5px 10px; margin: 12px 0 0; font-size: 12.5px; }
  .kv dt { color: var(--muted); }
  .kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

  .wins { display: grid; gap: 12px; margin-top: 14px; }
  .win-row { display: grid; grid-template-columns: 150px 1fr 96px 96px 96px; gap: 12px; align-items: center; font-size: 13.5px; }
  .win-row.head { color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; }
  .win-row .who { display: flex; align-items: center; gap: 8px; font-weight: 600; }
  .win-row .who i { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
  .win-row .num { text-align: right; }
  .bar-cell { display: grid; grid-template-columns: 1fr 52px; gap: 10px; align-items: center; }
  .bar { position: relative; height: 10px; border-radius: var(--r-pill); background: var(--sep); overflow: hidden; }
  .bar span { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; transition: width .7s var(--spring); }

  .skeleton .chart-box, .skeleton .nav-box { border-radius: var(--r-md); background: linear-gradient(90deg, var(--glass-thin) 0%, var(--surface-3) 50%, var(--glass-thin) 100%) 0 0 / 200% 100%; animation: shimmer 1.4s linear infinite; }
}
@keyframes card-in { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }

/* ================================================================ EXPLORER (scoped) */
#room-explorer {
  h2 { font: 650 19px/1.25 var(--font-display); letter-spacing: -0.02em; margin: 0; }
  .hint { margin: 4px 0 0; font-size: 13.5px; color: var(--muted); }
  .hint b { color: var(--ink-2); font-weight: 600; }
  .tag { font-size: 12px; color: var(--muted); }

  .controls {
    position: sticky; top: 76px; z-index: 10;
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px;
    margin: 20px 0 18px; padding: 10px 14px; border-radius: 28px;
    background: var(--glass-strong);
    -webkit-backdrop-filter: var(--blur-strong); backdrop-filter: var(--blur-strong);
  }
  .group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
  .lbl { font-size: 11.5px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

  .segs { position: relative; display: inline-flex; align-items: center; gap: 2px; padding: 3px; border-radius: var(--r-pill); background: var(--sep); box-shadow: inset 0 1px 2px rgba(0,0,0,.08); }
  .thumb {
    position: absolute; top: 3px; bottom: 3px; left: 0; width: 0; z-index: 0; border-radius: var(--r-pill);
    background: var(--lens);
    -webkit-backdrop-filter: blur(12px) saturate(200%); backdrop-filter: blur(12px) saturate(200%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.5), 0 2px 8px rgba(0,0,0,.14), 0 0 0 .5px rgba(0,0,0,.04);
    transition: transform .5s var(--spring), width .5s var(--spring), opacity .2s; opacity: 0;
  }
  button.seg, button.chip {
    position: relative; z-index: 1; font: inherit; font-size: 13.5px; font-weight: 600; color: var(--ink-2);
    background: transparent; border: 0; border-radius: var(--r-pill); padding: 6px 14px; cursor: pointer; white-space: nowrap;
    transition: color .2s, transform .15s;
  }
  button.seg:hover, button.chip:hover { color: var(--ink); }
  button.seg:active, button.chip:active { transform: scale(.95); }
  button.seg[aria-pressed="true"], button.chip.on { color: var(--ink); }

  select, .dates input {
    font: inherit; font-size: 13.5px; font-weight: 600; color: var(--ink);
    background: var(--sep); border: 0; border-radius: var(--r-pill); padding: 7px 14px; cursor: pointer;
    box-shadow: inset 0 1px 2px rgba(0,0,0,.06);
  }
  select { -webkit-appearance: none; appearance: none; padding-right: 32px;
    background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
    background-position: calc(100% - 17px) 52%, calc(100% - 12px) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
  select option { background: var(--surface); color: var(--ink); }
  .dates label { font-size: 12.5px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

  .mode { padding: 4px; border-radius: var(--r-pill); }
  .mode .segs { background: transparent; box-shadow: none; padding: 0; }
  .mode .thumb { top: 0; bottom: 0; background: var(--accent-fill); box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 45%, transparent), inset 0 1px 0 rgba(255,255,255,.35); }
  .mode button.seg { padding: 8px 16px; font-size: 14px; }
  .mode button.seg[aria-pressed="true"] { color: #fff; }

  .lessons { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
  .lesson { border-radius: 26px; padding: 18px 20px; overflow: hidden; }
  .lesson .n { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-fg); background: var(--accent-soft); padding: 3px 10px; border-radius: var(--r-pill); }
  .lesson .t { font: 650 18px/1.25 var(--font-display); letter-spacing: -0.02em; margin: 10px 0 6px; }
  .lesson p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

  .card { border-radius: 30px; padding: 20px 22px 12px; margin-bottom: 18px; min-width: 0; overflow: hidden; }
  .card-h { margin-bottom: 10px; }
  .card-h.row { display: flex; justify-content: space-between; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
  .chart { width: 100%; height: 360px; }
  .chart.main { height: 620px; }
  .chart.heat { height: 660px; }
  /* a chart that hasn't been drawn yet (it renders as it nears the screen) */
  .chart:empty { border-radius: var(--r-md); background: linear-gradient(90deg, var(--glass-thin) 0%, var(--surface-3) 50%, var(--glass-thin) 100%) 0 0 / 200% 100%; animation: shimmer 1.4s linear infinite; }

  .story-card { border-radius: 26px; padding: 18px 52px 18px 22px; margin-bottom: 18px; overflow: hidden; background: color-mix(in srgb, var(--accent) 12%, var(--glass)); }
  .story-card h2 { font-size: 20px; }
  .story-card p { margin: 8px 0 0; color: var(--ink-2); max-width: 95ch; }
  .story-card .try { font-size: 14px; color: var(--muted); }
  .story-card .x { position: absolute; top: 14px; right: 14px; width: 30px; height: 30px; border-radius: 50%; border: 0; background: var(--sep); color: var(--ink-2); font-size: 18px; line-height: 1; cursor: pointer; z-index: 3; }

  .money .money-q { font-size: 17px; line-height: 2.1; }
  .amount { display: inline-flex; align-items: center; gap: 2px; padding: 0 12px; border-radius: var(--r-pill); background: var(--accent-soft); color: var(--accent-fg); font-weight: 650; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent); }
  .amount:focus-within { box-shadow: inset 0 0 0 2px var(--accent); }
  .amount input { font: inherit; font-weight: 650; color: var(--accent-fg); background: transparent; border: 0; width: 92px; padding: 5px 0; outline: none; }
  .money-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 12px 0; }
  .mt { border-radius: 22px; padding: 14px 16px; overflow: hidden; background: var(--glass-thin); }
  .mt.cur { box-shadow: inset 0 0 0 2px var(--accent), inset 0 1px 0 var(--glass-edge), var(--glass-shadow); }
  .mt .k { font-size: 13px; font-weight: 600; color: var(--ink-2); }
  .mt .v { font: 700 32px/1.15 var(--font-display); letter-spacing: -0.035em; margin: 4px 0 2px; font-variant-numeric: tabular-nums; }
  .mt .s { font-size: 12.5px; color: var(--muted); }
  .money-note { margin: 4px 0 8px; color: var(--ink-2); }

  .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
  .stat { border-radius: 24px; padding: 14px 18px; overflow: visible; }
  .stat:hover, .stat:focus-within { z-index: 20; }
  .stat .k { font-size: 13px; font-weight: 600; color: var(--muted); position: relative; z-index: 3; }
  .stat .v { font: 700 28px/1.2 var(--font-display); letter-spacing: -0.035em; margin-top: 2px; font-variant-numeric: tabular-nums; }
  .stat .s { font-size: 12.5px; color: var(--ink-2); }

  .slider { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-2); font-weight: 600; }
  .slider b { min-width: 52px; }
  input[type="range"] { -webkit-appearance: none; appearance: none; width: 220px; height: 6px; border-radius: 99px; background: var(--sep); outline: none; }
  input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 32px; height: 22px; border-radius: 99px; cursor: grab; background: #fff; border: .5px solid rgba(0,0,0,.08); box-shadow: 0 3px 10px rgba(0,0,0,.2), inset 0 1px 0 rgba(255,255,255,.9); transition: transform .25s var(--spring); }
  input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 45%, transparent), 0 3px 10px rgba(0,0,0,.2); }
  input[type="range"]::-webkit-slider-thumb:active { transform: scale(1.2); cursor: grabbing; }
  input[type="range"]::-moz-range-thumb { width: 32px; height: 22px; border-radius: 99px; cursor: grab; background: #fff; border: .5px solid rgba(0,0,0,.08); box-shadow: 0 3px 10px rgba(0,0,0,.2); }

  .tablewrap { overflow-x: auto; margin: 0 -6px; }
  .tbl { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; font-variant-numeric: tabular-nums; }
  .tbl th { text-align: right; color: var(--muted); font-weight: 600; font-size: 12.5px; padding: 8px 10px; border-bottom: 1px solid var(--sep); white-space: nowrap; }
  .tbl td { text-align: right; padding: 9px 10px; border-bottom: 1px solid var(--sep); white-space: nowrap; }
  .tbl tr:last-child td { border-bottom: 0; }
  .tbl th:first-child, .tbl td:first-child { text-align: left; }
  .tbl tr.click { cursor: pointer; }
  .tbl tr.click td { transition: background .15s; }
  .tbl tr.click:hover td { background: var(--accent-soft); }
  .tbl tr.click:hover td:first-child { border-radius: 12px 0 0 12px; }
  .tbl tr.click:hover td:last-child { border-radius: 0 12px 12px 0; }
  .bar { display: inline-block; vertical-align: middle; width: 130px; height: 8px; border-radius: 99px; background: var(--sep); margin-right: 10px; overflow: hidden; }
  .bar > i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }

  .sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; vertical-align: 0; }
  .pos-sw { background: var(--div-pos); }
  .neg-sw { background: var(--div-neg); }
  .pick-out { font-size: 16px; margin: 6px 0 10px; padding: 14px 18px; border-radius: 20px; background: var(--glass-thin); }
  .pick-out a { cursor: pointer; font-weight: 600; text-decoration: none; }
  .pick-out a:hover { text-decoration: underline; }

  .info {
    display: inline-grid; place-items: center; width: 16px; height: 16px; border-radius: 50%;
    background: var(--sep); color: var(--ink-2); font: italic 600 10px/1 Georgia, serif;
    text-transform: none; letter-spacing: 0; cursor: help; position: relative; vertical-align: 1px; margin-left: 3px;
  }
  .info:hover::after, .info:focus::after {
    content: attr(data-tip); position: absolute; top: 24px; left: -10px; z-index: 30;
    width: 290px; padding: 12px 14px; border-radius: 16px;
    font: 500 13px/1.45 var(--font); color: var(--ink); text-transform: none; letter-spacing: 0;
    background: var(--glass-strong);
    -webkit-backdrop-filter: var(--blur-strong); backdrop-filter: var(--blur-strong);
    box-shadow: inset 0 1px 0 var(--glass-edge), 0 18px 44px rgba(0,0,0,.3);
  }
  .foot a { color: var(--ink-2); }
}
#room-explorer.simple .adv-only { display: none !important; }
#room-explorer.advanced .simple-only { display: none !important; }

/* wording that depends on the input: mouse (hover, drag) or touch (tap) */
.t-touch, .m-only { display: none; }
@media (pointer: coarse) {
  .t-touch { display: inline; }
  .t-mouse { display: none; }
}

/* ================================================================ touch (phones, tablets, any coarse pointer)
   44pt hit areas (Apple HIG / WCAG 2.5.5) without changing the visual density: small
   controls keep their look and get an invisible hit area; inputs are 16px so iOS Safari
   doesn't zoom the page when they get focus. */
@media (pointer: coarse) {
  a, button, select, input, label, .opt, .chip, .seg, .pill { -webkit-tap-highlight-color: transparent; }
  .btn.small, .pill:not(.static), .toc-i { min-height: 44px; }
  .icon-btn { width: 44px; height: 44px; }
  .tabs a::after { content: ""; position: absolute; inset: -5px -1px; }

  /* segmented controls and chips: extend the hit area to ≥44pt tall */
  #room-whatif .chip { position: relative; }
  #room-whatif .seg button::after, #room-whatif .chip::after,
  #room-explorer button.seg::after, #room-explorer button.chip::after,
  #room-explorer .story-card .x::after {
    content: ""; position: absolute; inset: -7px 0;
  }
  #room-explorer .story-card .x::after { inset: -7px; border-radius: 50%; }
  #room-whatif .seg-presets button { padding: 6px 13px; font-size: 13px; }
  #room-whatif .chip-bank input { font-size: 16px; width: 2.6ch; }

  #room-explorer select, #room-explorer .dates input { font-size: 16px; min-height: 44px; }
  #room-explorer .info { width: 20px; height: 20px; font-size: 11.5px; }
  #room-explorer .info::before { content: ""; position: absolute; inset: -12px; }
  #room-explorer input[type="range"] {
    height: 44px; background: linear-gradient(var(--sep), var(--sep)) center / 100% 6px no-repeat;
  }
  #room-explorer input[type="range"]::-webkit-slider-thumb { width: 34px; height: 26px; }
}

/* ================================================================ responsive */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .rep-grid { grid-template-columns: 1fr; }
  .rep-next { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 76px; }
  .topbar { top: 10px; grid-template-columns: 1fr auto; }
  .brand { padding-right: 14px; }
  .tabs {
    position: fixed; left: 0; right: 0; margin-inline: auto;
    bottom: calc(12px + env(safe-area-inset-bottom)); top: auto;
    width: max-content; max-width: calc(100vw - 24px);
  }
  .tabs a { flex-direction: column; gap: 2px; padding: 7px 14px; font-size: 11px; }
  .tabs a svg { width: 22px; height: 22px; }
  .scrolled .tabs a { padding: 6px 12px; }
  .room { padding: 76px 16px 120px; }
  .hero { padding: 24px 20px; border-radius: 28px; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .rep-head { flex-direction: column; }
  .defs { grid-template-columns: 1fr; }
  .defs dd { border-top: 0; padding-top: 0; }
  #room-whatif .seg-assets { width: 100%; justify-content: space-between; }
  #room-whatif .toolbar .grow, #room-whatif .range-row .grow { display: none; }
  #room-whatif .win-row { grid-template-columns: 96px 1fr 64px; }
  #room-whatif .win-row .hide-sm { display: none; }
  #room-whatif .nav-box { height: 92px; }
  #room-explorer .controls { position: relative; top: auto; border-radius: 24px; }
  /* the time-range row (7 chips in Advanced view) wraps instead of widening the page;
     explorer.js moves the thumb to the selected chip's row */
  #room-explorer .segs { max-width: 100%; flex-wrap: wrap; }
  #room-explorer .segs:has(.chip.adv-only) { border-radius: 22px; }
  #room-explorer .controls button.seg { white-space: normal; line-height: 1.25; padding: 7px 11px; text-align: center; }
  #room-explorer .controls button.chip { padding-inline: 11px; }
  #room-explorer .controls > .group, #room-explorer .controls select { max-width: 100%; min-width: 0; }
  #room-explorer .card { border-radius: 24px; padding: 16px 14px 8px; }
  #room-explorer .chart.main { height: 460px; }
  #room-explorer .chart.heat { height: 480px; }
  #room-explorer .bar { width: 36px; margin-right: 6px; }
  #room-explorer .tablewrap { margin: 0 -8px; }
  #room-explorer .tbl { font-size: 13.5px; }
  #room-explorer .tbl th { white-space: normal; vertical-align: bottom; line-height: 1.25; font-size: 12px; }
  #room-explorer .tbl th, #room-explorer .tbl td { padding: 8px 5px; }
  #room-explorer .tbl .unit { display: none; }
  #room-explorer .tbl .m-only { display: inline; }
  #room-explorer input[type="range"] { width: 150px; }
  #room-explorer .mt .v { font-size: 26px; }
  .guide-tips { border-radius: 24px; }
  /* the histogram is a 560-wide viewBox scaled to the card: keep its labels ≥10px on screen */
  .histo text, .histo .median-l { font-size: 15px; }
}
@media (max-width: 480px) {
  .histo text, .histo .median-l { font-size: 19px; }
}

/* phones and touch screens: info tips span the screen, 12px in from each edge, instead of running
   off it (inside the sticky controls, which keep a backdrop blur, they span that panel instead) */
@media (max-width: 760px), (pointer: coarse) {
  #room-explorer .info:hover::after, #room-explorer .info:focus::after {
    position: fixed; top: auto; left: 12px; right: 12px; width: auto; margin-top: 26px;
    /* nested backdrop blur can't see past the card it sits in: make the tip near-opaque */
    background: color-mix(in srgb, var(--surface) 96%, transparent);
  }
}

/* short viewports (phones in landscape): a sticky control panel would cover most of the screen */
@media (max-height: 560px) {
  #room-explorer .controls { position: relative; top: auto; }
}

@media (prefers-reduced-transparency: reduce) {
  .glass, .brand, .tabs, .icon-btn, #room-whatif .card, .scard, #room-explorer .card, .controls, .lesson, .stat, .story-card, .mode, .mt, .pick-out {
    background: var(--surface); -webkit-backdrop-filter: none; backdrop-filter: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .backdrop i { animation: none; }
}

/* ================================================================ five mistakes (Guide) */
.mistakes { margin-top: 26px; }
.mk-head { margin: 0 4px 16px; }
.mk-head p { margin: 6px 0 0; color: var(--ink-2); max-width: 70ch; }
.mk-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.mk { display: flex; flex-direction: column; gap: 6px; padding: 20px 22px; border-radius: 26px; color: var(--ink); text-decoration: none; transition: transform .45s var(--spring); min-width: 0; }
.mk:hover { transform: translateY(-4px); }
.mk:active { transform: scale(0.985); }
.mk.feature { grid-column: span 2; }
.mk.sk { min-height: 220px; }
.mk-n { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.mk-t { font: 700 20px/1.2 var(--font-display); letter-spacing: -0.025em; }
.mk-big { margin: 8px 0 4px; font: 700 clamp(30px, 3.2vw, 40px)/1.05 var(--font-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.mk-big small { font-size: .5em; font-weight: 600; color: var(--muted); letter-spacing: 0; margin: 0 .2em; }
.mk.feature .mk-big { font-size: clamp(36px, 4.4vw, 54px); }
.mk-p { color: var(--ink-2); font-size: 14.5px; line-height: 1.5; flex: 1; max-width: 62ch; }
.mk-p b { color: var(--ink); }

/* ================================================================ CRASH REPLAY */
.r-seg { display: inline-flex; padding: 4px; gap: 2px; border-radius: var(--r-pill); background: var(--sep); }
.r-seg button {
  border: 0; background: none; cursor: pointer; padding: 8px 16px; border-radius: var(--r-pill);
  font: 600 15px/1 var(--font); color: var(--ink-2); font-variant-numeric: tabular-nums;
  transition: color .2s var(--ease), background .2s var(--ease), transform .15s;
}
.r-seg button:hover { color: var(--ink); }
.r-seg button:active { transform: scale(.95); }
.r-seg button[aria-pressed="true"] { background: var(--lens); color: var(--ink); box-shadow: inset 0 1px 0 var(--glass-edge); }

.r-stage { border-radius: 32px; padding: clamp(18px, 3vw, 30px); }
.r-intro { margin: 0 0 18px; color: var(--ink-2); max-width: 75ch; }
.r-intro b { color: var(--ink); }
.r-top { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 28px; align-items: end; }
.r-when b { display: block; font: 700 clamp(34px, 4.6vw, 52px)/1 var(--font-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.r-caption { margin: 8px 0 0; min-height: 1.5em; color: var(--ink-2); font-size: 15.5px; }
.r-figs { display: grid; grid-template-columns: repeat(3, auto); gap: 10px; }
.r-figs > div { padding: 10px 14px; border-radius: var(--r-md); background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); min-width: 0; }
.r-figs span { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.r-figs b { display: block; margin-top: 2px; font: 700 24px/1.15 var(--font-display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.r-state { font-style: normal; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 2px 6px; border-radius: 6px; }
.r-state.in { background: color-mix(in srgb, var(--pos) 18%, transparent); color: var(--pos); }
.r-state.out { background: color-mix(in srgb, var(--s-lump) 22%, transparent); color: var(--s-lump); }
.r-progress { height: 4px; border-radius: 99px; background: var(--sep); margin: 18px 0 10px; overflow: hidden; }
.r-progress i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }
.r-chart { width: 100%; min-height: 230px; }
.r-chart svg { display: block; max-width: 100%; height: auto; }
.r-grid { stroke: var(--sep); stroke-width: 1; }
.r-ax { fill: var(--muted); font-size: 11.5px; font-family: var(--font); font-variant-numeric: tabular-nums; }
.r-start { stroke: var(--muted); stroke-width: 1.2; stroke-dasharray: 4 5; }
.r-startl { font-size: 11px; }
.r-held { fill: none; stroke: var(--s-bank); stroke-width: 2; stroke-linejoin: round; }
.r-you { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.r-dot { fill: var(--accent); stroke: var(--bg); stroke-width: 2; }
.r-cashband { fill: color-mix(in srgb, var(--s-lump) 16%, transparent); }
.r-legend { display: flex; flex-wrap: wrap; gap: 16px; margin: 8px 0 0; font-size: 12.5px; color: var(--muted); }
.r-legend span::before { content: ""; display: inline-block; width: 14px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.r-legend .lg-you::before { background: var(--accent); }
.r-legend .lg-held::before { background: var(--s-bank); }
.r-legend .lg-cash::before { height: 10px; background: color-mix(in srgb, var(--s-lump) 30%, transparent); }
.r-controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }
.r-controls .btn { min-width: 0; }
#r-play { min-width: 112px; }
.r-trade { color: #fff; min-width: 168px; }
.r-trade.sell { background: linear-gradient(180deg, color-mix(in srgb, var(--neg) 82%, #fff), color-mix(in srgb, var(--neg) 88%, #000)); }
.r-trade.buy { background: linear-gradient(180deg, color-mix(in srgb, var(--pos) 80%, #fff), color-mix(in srgb, var(--pos) 85%, #000)); }
.r-controls .btn:disabled { opacity: .45; cursor: default; transform: none; }
.r-log { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.r-log b, .r-log span:first-child { font-weight: 650; }

.r-result { margin-top: 18px; border-radius: 32px; padding: clamp(20px, 3vw, 32px); animation: rise .6s var(--ease) both; }
.r-result h2 { margin: 4px 0 16px; font: 700 clamp(22px, 2.8vw, 32px)/1.15 var(--font-display); letter-spacing: -0.03em; max-width: 36ch; text-wrap: balance; }
.r-result .tablewrap { overflow-x: auto; }
.r-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.r-table th, .r-table td { padding: 10px 12px; border-bottom: 1px solid var(--sep); text-align: left; vertical-align: top; }
.r-table thead th { font-size: 12px; color: var(--muted); font-weight: 600; }
.r-table tbody th { font-weight: 500; color: var(--ink-2); }
.r-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 650; }
.r-table tr.you th, .r-table tr.you td { color: var(--accent-fg); font-weight: 700; }
.r-small { margin: 12px 0 0; font-size: 13px; color: var(--muted); max-width: 90ch; }
.r-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

@media (max-width: 980px) {
  .mk-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .r-top { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .mk-grid { grid-template-columns: 1fr; }
  .mk.feature { grid-column: auto; }
  .r-figs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .r-figs > div { padding: 8px 10px; }
  .r-figs span { white-space: normal; font-size: 11px; line-height: 1.2; flex-wrap: wrap; }
  .r-figs b { font-size: 18px; }
  .r-seg { width: 100%; justify-content: space-between; }
  .r-seg button { padding: 8px 10px; flex: 1; }
  .r-controls #r-play, .r-controls .r-trade { flex: 1 1 40%; min-width: 0; }
  /* buttons above the chart so Play and Sell stay on screen while it runs */
  .r-stage { display: flex; flex-direction: column; }
  .r-stage .r-controls { order: 1; margin: 4px 0 12px; }
  .r-stage .r-chart, .r-stage .r-legend, .r-stage .r-log { order: 2; }
}
@media (pointer: coarse) {
  .r-seg button { min-height: 44px; }
}

/* ---------------------------------------------------------------- sharing (share.js) */
.sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.share { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; max-width: 100%; }
.share-btn svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.share-menu { display: flex; flex-wrap: wrap; gap: 6px; animation: rise .35s var(--ease) both; }
.share-menu[hidden] { display: none; }
.share-menu > * {
  padding: 7px 13px; border: 0; border-radius: var(--r-pill); cursor: pointer;
  font: 600 13.5px/1.2 var(--font); color: var(--ink-2); text-decoration: none;
  background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  transition: transform .3s var(--spring), background .2s var(--ease), color .2s var(--ease);
}
.share-menu > *:hover, .share-menu > *:focus-visible { background: var(--accent-soft); color: var(--accent-fg); }
.share-menu > *:active { transform: scale(.95); }
.share-note { font-size: 13px; color: var(--muted); }
.share-note:empty { display: none; }
.w-share { margin: 6px 0 4px; }
.w-share .share-btn { padding-left: 0; }
.w-share .share-btn:hover { background: transparent; color: var(--accent-fg); }
@media (pointer: coarse) { .share-menu > * { min-height: 40px; } }

/* ---------------------------------------------------------------- daily puzzle (daily.js) */
.daily { margin-top: 26px; scroll-margin-top: 84px; }
.dy { border-radius: 32px; padding: clamp(18px, 3vw, 30px); }
.dy-sk { min-height: 380px; }
.dy-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 12px 24px; }
.dy-head h2 { margin: 4px 0 6px; font: 700 clamp(24px, 2.8vw, 32px)/1.1 var(--font-display); letter-spacing: -0.03em; }
.dy-sub { margin: 0; color: var(--ink-2); max-width: 62ch; }
.dy-stats { display: flex; gap: 8px; }
.dy-stats div { min-width: 70px; padding: 8px 12px; border-radius: var(--r-md); text-align: center; background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); }
.dy-stats b { display: block; font: 700 22px/1.1 var(--font-display); font-variant-numeric: tabular-nums; }
.dy-stats span { font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.dy-chart { margin-top: 16px; min-height: 210px; }
.dy-chart svg { display: block; max-width: 100%; height: auto; }
.dy-past { fill: none; stroke: var(--ink-2); stroke-width: 2.4; stroke-linejoin: round; stroke-linecap: round; }
.dy-future { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.dy-future.draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: dy-draw 1.6s var(--ease) forwards; }
@keyframes dy-draw { to { stroke-dashoffset: 0; } }
.dy-hidden { fill: color-mix(in srgb, var(--accent) 7%, transparent); stroke: color-mix(in srgb, var(--accent) 35%, transparent); stroke-width: 1.2; stroke-dasharray: 5 6; }
.dy-qmark { fill: var(--accent-fg); font: 700 46px var(--font-display); }
.dy-mark { stroke: var(--muted); stroke-width: 1.2; }
.dy-dot { fill: var(--ink); stroke: var(--bg); stroke-width: 2; }
.dy-dot.end { fill: var(--accent); }
.dy-context { margin: 10px 0 0; color: var(--ink-2); font-size: 15px; }
.dy-context b { color: var(--ink); }
.dy-ask { margin: 20px 0 10px; font-size: 16.5px; outline: none; }
.dy-ask b { color: var(--accent-fg); }
.dy-opts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.dy-opt {
  padding: 14px 12px; border: 0; border-radius: var(--r-md); cursor: pointer;
  font: 650 15px/1.25 var(--font); color: var(--ink); font-variant-numeric: tabular-nums;
  background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
  transition: transform .3s var(--spring), background .2s var(--ease), color .2s var(--ease);
}
.dy-opt:hover { background: var(--accent-soft); color: var(--accent-fg); }
.dy-opt:active { transform: scale(.96); }
.dy-reveal { animation: rise .5s var(--ease) both; }
.dy-reveal h3 { margin: 20px 0 8px; font: 700 clamp(22px, 2.6vw, 28px)/1.15 var(--font-display); letter-spacing: -0.03em; outline: none; }
.dy-marks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; color: var(--ink-2); }
.dy-marks li { padding-left: 1.6em; text-indent: -1.6em; }
.dy-marks li::before { display: inline-block; width: 1.6em; text-indent: 0; font-weight: 800; }
.dy-marks li.ok::before { content: "✓"; color: var(--pos); }
.dy-marks li.no::before { content: "✗"; color: var(--neg); }
.dy-marks b, .dy-base b { color: var(--ink); }
.dy-base { margin: 12px 0 0; color: var(--ink-2); max-width: 78ch; }
.dy-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 18px; }
.dy-next, .dy-foot { margin: 12px 0 0; font-size: 12.5px; color: var(--muted); }
@media (max-width: 760px) {
  .dy-opts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dy-stats { width: 100%; }
  .dy-stats div { flex: 1; }
}
@media (pointer: coarse) { .dy-opt { min-height: 50px; } }

/* ================================================================ the course (course/course.js) */
/* top bar: the Course link sits next to the theme button */
.top-right { justify-self: end; display: flex; align-items: center; gap: 8px; }
.top-course {
  background: var(--glass-strong); color: var(--ink);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low), var(--glass-shadow);
  min-height: 44px; padding-inline: 18px;
}
.top-course:hover { color: var(--accent-fg); }
.top-course[aria-current="page"] { color: var(--accent-fg); background: var(--accent-soft); }

/* Guide: the course band */
.c-band { display: flex; justify-content: space-between; align-items: center; gap: 18px 32px; flex-wrap: wrap; margin-top: 44px; padding: clamp(22px, 3.6vw, 36px); border-radius: 32px; }
.c-band > div:first-child { max-width: 62ch; }
.c-band h2 { margin: 0; font: 700 clamp(24px, 3vw, 32px)/1.15 var(--font-display); letter-spacing: -0.03em; }
.c-band p:not(.eyebrow) { margin: 8px 0 0; color: var(--ink-2); line-height: 1.55; }
.c-band .hero-actions { margin-top: 0; }

/* sales page */
.c-hero { align-items: start; }
.c-terms { margin: 14px 0 0; font-size: 13.5px; color: var(--muted); }
.soon { white-space: normal; }
.c-get { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.c-get li { padding: 14px 16px; border-radius: var(--r-lg); background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); }
.c-get b { display: block; font-size: 16px; letter-spacing: -0.01em; }
.c-get span { display: block; margin-top: 3px; color: var(--ink-2); font-size: 14px; line-height: 1.45; }
.c-sec { margin-top: 44px; scroll-margin-top: 12px; }
.c-figs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.c-fig { display: flex; flex-direction: column; gap: 6px; padding: 20px 22px; border-radius: 26px; min-width: 0; }
.c-fig.sk { min-height: 150px; }
.c-fig b { font: 700 clamp(26px, 3vw, 34px)/1.1 var(--font-display); letter-spacing: -0.035em; font-variant-numeric: tabular-nums; }
.c-fig > span:last-child { color: var(--ink-2); font-size: 14.5px; line-height: 1.45; }
.c-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.c-steps li { padding: 20px; border-radius: 26px; }
.c-steps span { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: #fff; background: linear-gradient(140deg, var(--accent-2), var(--accent) 60%, var(--accent-3)); }
.c-steps b { display: block; margin-top: 12px; font: 700 19px/1.2 var(--font-display); letter-spacing: -0.02em; }
.c-steps p { margin: 6px 0 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; }
.c-syl { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.syl { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-radius: 24px; }
.syl.sk { min-height: 110px; }
.syl-n { flex-shrink: 0; width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; font: 700 18px/1 var(--font-display); color: var(--accent-fg); background: var(--accent-soft); }
.syl-main { flex: 1; min-width: 0; }
.syl-k { margin: 0; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.syl-k .free { color: var(--pos); }
.syl h3 { margin: 3px 0 0; font: 700 19px/1.25 var(--font-display); letter-spacing: -0.02em; }
.syl p:not(.syl-k) { margin: 5px 0 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; max-width: 80ch; }
.syl .syl-out, .syl-out { color: var(--accent-fg) !important; font-weight: 600; font-size: 14px; }
.c-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.c-two .panel { margin-top: 0; }
.c-ticks { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 10px; }
.c-ticks li { position: relative; padding-left: 30px; color: var(--ink-2); line-height: 1.5; }
.c-ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 21px; height: 21px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 800; color: var(--pos); background: color-mix(in srgb, var(--pos) 16%, transparent); }
.c-ticks.no li::before { content: "×"; font-size: 15px; color: var(--neg); background: color-mix(in srgb, var(--neg) 16%, transparent); }
.c-promise { display: flex; gap: 18px; align-items: center; padding: clamp(20px, 3vw, 30px); border-radius: 32px; }
.c-promise h2 { margin: 0; font: 700 22px/1.2 var(--font-display); letter-spacing: -0.02em; }
.c-promise p { margin: 6px 0 0; color: var(--ink-2); line-height: 1.55; max-width: 80ch; }
.c-buy { max-width: 560px; margin-inline: auto; padding: clamp(24px, 4vw, 40px); border-radius: 36px; text-align: center; }
.c-buy h2 { margin: 4px 0 0; font: 700 clamp(48px, 6vw, 64px)/1 var(--font-display); letter-spacing: -0.045em; }
.c-buy h2 small { font-size: 18px; letter-spacing: 0; font-weight: 600; color: var(--muted); }
.c-buy .c-ticks { text-align: left; max-width: 380px; margin: 22px auto 0; }
.c-buy .hero-actions { justify-content: center; }
.c-faq { display: grid; gap: 10px; }
.c-faq details { padding: 4px 22px; border-radius: 22px; }
.c-faq summary { cursor: pointer; padding: 14px 0; font-weight: 650; font-size: 16px; list-style-position: outside; }
.c-faq details p { margin: 0 0 16px; color: var(--ink-2); line-height: 1.6; max-width: 85ch; }

/* course room */
.s-count { margin: 6px 0 0; font: 700 clamp(22px, 2.6vw, 28px)/1.2 var(--font-display); letter-spacing: -0.03em; }
.s-progress { width: min(420px, 80vw); margin: 12px 0 0; }
.room-head .eyebrow a { color: inherit; text-decoration: none; }
.s-layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 18px; align-items: start; }
.s-nav { position: sticky; top: 84px; display: grid; gap: 2px; padding: 8px; border-radius: 26px; max-height: calc(100vh - 110px); overflow: auto; }
.s-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 16px; color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 600; line-height: 1.3; transition: background .2s; }
.s-item:hover { background: var(--glass-thin); color: var(--ink); }
.s-item.on { background: var(--accent-soft); color: var(--ink); }
.s-dot { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 700; background: var(--surface-2); color: var(--ink-2); }
.s-dot svg { width: 13px; height: 13px; }
.s-item.on .s-dot { background: var(--accent-fill); color: #fff; }
.s-item.done .s-dot { background: color-mix(in srgb, var(--pos) 22%, transparent); color: var(--pos); }
.s-item.locked { color: var(--muted); }
.s-mod { display: grid; gap: 16px; }
.s-head, .s-sec { padding: clamp(20px, 3.4vw, 34px); border-radius: 32px; }
.s-head h1 { margin: 4px 0 0; font: 700 clamp(28px, 3.6vw, 40px)/1.1 var(--font-display); letter-spacing: -0.035em; }
.s-intro { margin: 12px 0 0; font-size: clamp(16px, 1.5vw, 18px); line-height: 1.55; color: var(--ink-2); max-width: 70ch; }
.s-sec h2 { margin: 0 0 4px; font: 700 clamp(20px, 2.3vw, 25px)/1.2 var(--font-display); letter-spacing: -0.025em; }
.s-sec .n-k { display: block; margin: 0 0 6px; }
.lx-body ul { margin: 10px 0; padding-left: 22px; color: var(--ink-2); line-height: 1.6; max-width: 72ch; }
.lx-body li { margin: 3px 0; }
.lx-body li b { color: var(--ink); }
.s-try .btn { margin-top: 6px; }
.s-notice { padding: 12px 16px; border-radius: var(--r-md); background: var(--accent-soft); color: var(--ink) !important; }
.s-sec .cap { margin: 10px 0 0; }
.quiz { display: grid; gap: 18px; margin-top: 12px; }
.qz { margin: 0; padding: 0; border: 0; min-width: 0; }
.qz legend { padding: 0; font-weight: 650; font-size: 16px; line-height: 1.45; }
.qz-opts { display: grid; gap: 8px; margin-top: 10px; }
.qz-o { text-align: left; padding: 12px 16px; border: 0; border-radius: var(--r-md); cursor: pointer; font-size: 15px; line-height: 1.4; background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); transition: background .2s, transform .3s var(--spring); }
.qz-o:hover { background: var(--glass-strong); }
.qz-o:active { transform: scale(0.985); }
.qz-o.right { background: color-mix(in srgb, var(--pos) 18%, transparent); box-shadow: inset 0 0 0 2px var(--pos); }
.qz-o.wrong { background: color-mix(in srgb, var(--neg) 16%, transparent); box-shadow: inset 0 0 0 2px var(--neg); }
.qz-why { margin: 10px 0 0; color: var(--ink-2); line-height: 1.55; font-size: 14.5px; }
.qz-why:empty { display: none; }
.s-take textarea, .cp textarea, .cp input[type="text"] {
  width: 100%; margin-top: 10px; padding: 12px 14px; border: 0; border-radius: var(--r-md); resize: vertical;
  font: inherit; font-size: 16px; line-height: 1.5; color: var(--ink);
  background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low);
}
.s-take textarea:focus, .cp textarea:focus, .cp input:focus { outline: none; box-shadow: inset 0 0 0 2px var(--accent); }
.s-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.s-foot .btn.ghost { white-space: normal; text-align: left; }
.s-locked { text-align: left; }
.s-lock { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 17px; margin-bottom: 12px; color: var(--accent-fg); background: var(--accent-soft); }
.s-lock svg { width: 26px; height: 26px; }
.s-locked .syl-out { margin: 12px 0 0; }

/* widgets */
.w-q { margin: 12px 0 0; font-size: 17px; line-height: 2.1; color: var(--ink-2); }
.w-amt { display: inline-flex; align-items: center; gap: 2px; padding: 2px 10px; border-radius: 12px; color: var(--accent-fg); font-weight: 700; background: var(--accent-soft); }
.w-amt input { width: 8ch; border: 0; background: none; outline: none; font: inherit; color: inherit; -moz-appearance: textfield; }
.w-amt input::-webkit-outer-spin-button, .w-amt input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.ctl-sel { font: inherit; font-weight: 700; color: var(--accent-fg); padding: 4px 8px; border: 0; border-radius: 12px; background: var(--accent-soft); cursor: pointer; }
.ctl-sel option { color: initial; }
.w-slider { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 12px; font-weight: 600; color: var(--ink-2); }
.w-slider input { flex: 1; min-width: 160px; max-width: 420px; accent-color: var(--accent); height: 32px; }
.w-slider b { min-width: 6ch; color: var(--ink); font-variant-numeric: tabular-nums; }
.cp { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.cp-row { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 14.5px; color: var(--ink-2); }
.cp-row.wide { grid-column: 1 / -1; }
.cp-row .ctl-sel { width: 100%; padding: 10px 12px; font-size: 15px; white-space: normal; }
.cp-row textarea, .cp-row input { margin-top: 0 !important; }
.s-widget > .cp-row { margin-top: 12px; max-width: 420px; }
.s-widget > .cp-row input { width: 100%; padding: 12px 14px; border: 0; border-radius: var(--r-md); font: inherit; color: var(--ink); background: var(--glass-thin); box-shadow: inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px var(--glass-edge-low); }

/* plan card: on screen and in print */
.pc { margin-top: 18px; padding: clamp(18px, 3vw, 30px); border-radius: 24px; background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--border-strong); }
.pc-head { display: flex; gap: 14px; align-items: center; }
.pc-head .brand-mark { width: 44px; height: 44px; flex-shrink: 0; }
.pc-head h3 { margin: 2px 0 0; font: 700 24px/1.2 var(--font-display); letter-spacing: -0.02em; }
.pc-head .cap { margin: 2px 0 0; }
.pc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.pc-grid > div { padding: 12px 14px; border-radius: var(--r-md); background: var(--glass-thin); }
.pc-grid span { display: block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.pc-grid b { display: block; margin-top: 4px; font-size: 15px; line-height: 1.4; }
.pc h4 { margin: 20px 0 8px; font: 700 17px/1.2 var(--font-display); }
.pc-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pc-list li { display: grid; grid-template-columns: minmax(150px, 280px) 1fr; gap: 4px 16px; padding: 8px 0; border-top: 1px solid var(--sep); font-size: 14.5px; line-height: 1.45; }
.pc-list li:first-child { border-top: 0; }
.pc-list span { color: var(--ink-2); white-space: pre-wrap; }
.pc-foot { margin: 18px 0 0; font-size: 12px; color: var(--muted); line-height: 1.5; }
.pc-cert { margin-top: 20px; padding: 20px; border-radius: 18px; text-align: center; box-shadow: inset 0 0 0 2px var(--accent); }
.pc-cert b { display: block; margin: 6px 0; font: 700 26px/1.2 var(--font-display); }
.pc-cert span { color: var(--ink-2); }

@media (max-width: 980px) {
  .c-figs, .c-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c-two { grid-template-columns: 1fr; }
  .s-layout { grid-template-columns: 1fr; }
  .s-nav { position: relative; top: auto; display: flex; gap: 6px; overflow-x: auto; max-height: none; padding: 6px; border-radius: 22px; scrollbar-width: none; }
  .s-nav::-webkit-scrollbar { display: none; }
  .s-item { flex-shrink: 0; padding: 4px; }
  .s-item .s-t { display: none; }
  .s-item.on { padding-right: 12px; }
  .s-item.on .s-t { display: inline; white-space: nowrap; }
  .s-dot { width: 32px; height: 32px; }
  .cp { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .top-course { min-height: 40px; padding-inline: 14px; }
  .c-figs, .c-steps { grid-template-columns: 1fr; }
  .syl { flex-wrap: wrap; align-items: flex-start; padding: 16px; }
  .syl-main { flex: 1 1 calc(100% - 60px); }
  .syl .btn { margin-left: 60px; }
  .c-promise { flex-direction: column; align-items: flex-start; }
  .c-band .hero-actions .btn { width: 100%; }
  .s-head, .s-sec { border-radius: 26px; }
  .pc-grid { grid-template-columns: 1fr; }
  .pc-list li { grid-template-columns: 1fr; }
}

/* Print: only the plan card, on white */
@media print {
  :root.printing-card body > *:not(#room-study) { display: none !important; }
  :root.printing-card #room-study > *:not(.s-layout), :root.printing-card .s-nav,
  :root.printing-card .s-mod > *:not(.s-widget), :root.printing-card .s-widget > *:not(.pc),
  :root.printing-card .s-main > .disclaimer { display: none !important; }
  :root.printing-card, :root.printing-card body { background: #fff !important; color: #111 !important; }
  :root.printing-card .room, :root.printing-card .s-layout, :root.printing-card .s-widget { padding: 0; margin: 0; display: block; background: none !important; box-shadow: none !important; }
  :root.printing-card .s-widget::before, :root.printing-card .s-widget::after { display: none; }
  :root.printing-card .pc { background: #fff; box-shadow: none; color: #111; --ink: #111; --ink-2: #333; --muted: #555; --sep: #ddd; --glass-thin: #f4f5f7; --accent: #0071e3; }
}