/* ==========================================================================
   MINI SPLIT TRAINING — DESIGN SYSTEM
   --------------------------------------------------------------------------
   Dark-first, token-driven. To rebrand, edit the tokens in :root below.
   Everything else derives from them.

   CONTENTS
     01  Fonts
     02  Tokens (night + day themes)
     03  Reset & base
     04  Typography
     05  Layout primitives
     06  Buttons
     07  Header / navigation
     08  Hero
     09  Cards & surfaces
     10  Curriculum / modules / lessons
     11  Lesson player
     12  3D explorer
     13  Pricing
     14  Dashboard & progress
     15  Search palette
     16  Footer
     17  Utilities, motion, print
   ========================================================================== */

/* ==========================================================================
   01 · FONTS  (self-hosted — no external requests, works offline)
   ========================================================================== */
@font-face {
  font-family: "Inter var";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-wght-normal.woff2?v=2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal; font-display: swap; font-weight: 500;
  src: url("../fonts/space-grotesk-latin-500-normal.woff2?v=2") format("woff2");
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal; font-display: swap; font-weight: 600;
  src: url("../fonts/space-grotesk-latin-600-normal.woff2?v=2") format("woff2");
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal; font-display: swap; font-weight: 700;
  src: url("../fonts/space-grotesk-latin-700-normal.woff2?v=2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal; font-display: swap; font-weight: 500;
  src: url("../fonts/jetbrains-mono-latin-500-normal.woff2?v=2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal; font-display: swap; font-weight: 700;
  src: url("../fonts/jetbrains-mono-latin-700-normal.woff2?v=2") format("woff2");
}

/* ==========================================================================
   02 · TOKENS
   ========================================================================== */
:root {
  /* Build marker — the page checks this to detect a stale cached stylesheet.
     Bump it (and the ?v= on the asset URLs) whenever you ship changes. */
  --mst-build: 2;

  /* — Type families — */
  --font-display: "Space Grotesk", "Inter var", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body:    "Inter var", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* — Type scale — */
  --fs-display: clamp(2.7rem, 6.4vw, 4.75rem);
  --fs-h1:      clamp(2.15rem, 4.4vw, 3.4rem);
  --fs-h2:      clamp(1.7rem, 3.1vw, 2.55rem);
  --fs-h3:      clamp(1.15rem, 1.6vw, 1.35rem);
  --fs-lead:    clamp(1.05rem, 1.45vw, 1.26rem);
  --fs-sm:      .9rem;
  --fs-xs:      .795rem;

  /* — Geometry — */
  --r-xs: 8px;  --r-sm: 12px;  --r: 16px;  --r-lg: 22px;  --r-xl: 30px;  --r-pill: 999px;
  --maxw: 1200px;
  --maxw-narrow: 780px;
  --gutter: clamp(18px, 4vw, 34px);
  --header-h: 68px;

  /* — Motion — */
  --ease:      cubic-bezier(.22, .61, .36, 1);
  --ease-expo: cubic-bezier(.16, 1, .3, 1);
  --t-fast: .16s;  --t: .28s;  --t-slow: .55s;

  /* — Brand accent (shared by both themes) — */
  --accent:      #22D3EE;
  --accent-2:    #38BDF8;
  --accent-deep: #0891B2;
  --accent-ink:  #04222A;

  /* — Level ramp: ordered cool→green progression, not a rainbow — */
  --lvl1: #60A5FA;
  --lvl2: #38BDF8;
  --lvl3: #22D3EE;
  --lvl4: #2DD4BF;
  --lvl5: #4ADE80;

  /* — Semantic — */
  --ok:   #4ADE80;
  --warn: #FBBF24;
  --bad:  #F87171;
}

/* ---------- NIGHT (default) ---------- */
:root,
[data-theme="night"] {
  color-scheme: dark;

  --bg:         #07090D;
  --bg-2:       #0A0E14;
  --surface:    #0F141C;
  --surface-2:  #141B25;
  --surface-3:  #1A2331;

  --line:       rgba(255,255,255,.075);
  --line-2:     rgba(255,255,255,.135);
  --line-3:     rgba(255,255,255,.24);

  --text:       #E9EEF6;
  --text-2:     #A0AEC2;
  --text-3:     #8492A6;

  --glass:      rgba(255,255,255,.038);
  --glass-2:    rgba(255,255,255,.065);
  --hairline:   inset 0 1px 0 rgba(255,255,255,.06);

  --btn-primary-bg:   #FFFFFF;
  --btn-primary-ink:  #07090D;
  --btn-primary-hover:#E4EAF3;

  --shadow-1: 0 1px 0 rgba(255,255,255,.05) inset, 0 14px 34px -22px rgba(0,0,0,.95);
  --shadow-2: 0 1px 0 rgba(255,255,255,.06) inset, 0 40px 90px -40px rgba(0,0,0,.95);
  --glow:     0 0 0 1px rgba(34,211,238,.28), 0 18px 60px -22px rgba(34,211,238,.42);

  --grid-line: rgba(255,255,255,.045);
  --noise-op: .035;
  --scrim: rgba(7,9,13,.72);
}

/* ---------- DAY (daylight / job-site mode) ---------- */
[data-theme="day"] {
  color-scheme: light;

  --bg:         #F4F6FA;
  --bg-2:       #FFFFFF;
  --surface:    #FFFFFF;
  --surface-2:  #F7F9FC;
  --surface-3:  #EDF1F7;

  --line:       rgba(10,22,40,.10);
  --line-2:     rgba(10,22,40,.16);
  --line-3:     rgba(10,22,40,.28);

  --text:       #0A0F17;
  --text-2:     #4A5A70;
  --text-3:     #586576;

  --glass:      rgba(10,22,40,.028);
  --glass-2:    rgba(10,22,40,.05);
  --hairline:   inset 0 1px 0 rgba(255,255,255,.9);

  --accent:      #0E7490;
  --accent-2:    #0B6480;
  --accent-deep: #155E75;
  --accent-ink:  #FFFFFF;

  --lvl1: #2563EB; --lvl2: #0284C7; --lvl3: #0891B2; --lvl4: #0D9488; --lvl5: #16A34A;

  --btn-primary-bg:   #0A0F17;
  --btn-primary-ink:  #FFFFFF;
  --btn-primary-hover:#1D2735;

  --shadow-1: 0 1px 2px rgba(10,22,40,.06), 0 12px 28px -20px rgba(10,22,40,.4);
  --shadow-2: 0 2px 4px rgba(10,22,40,.05), 0 40px 80px -40px rgba(10,22,40,.35);
  --glow:     0 0 0 1px rgba(8,145,178,.3), 0 18px 50px -24px rgba(8,145,178,.4);

  --grid-line: rgba(10,22,40,.05);
  --noise-op: .02;
  --scrim: rgba(244,246,250,.78);
}

/* ==========================================================================
   03 · RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

/* [hidden] must beat component display rules (buttons, flex cards, …) */
[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv02" 1, "cv03" 1, "cv04" 1, "ss01" 1;
  overflow-x: hidden;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

/* Ambient page wash — subtle, sits behind everything */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 620px at 78% -8%,  color-mix(in srgb, var(--accent) 13%, transparent), transparent 62%),
    radial-gradient(760px 540px at 4% 6%,    color-mix(in srgb, var(--lvl1)  10%, transparent), transparent 58%),
    var(--bg);
}
/* Film-grain texture — the detail that stops flat dark from looking cheap */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: var(--noise-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg, video, canvas { max-width: 100%; display: block; }
img { height: auto; }

a { color: var(--accent); text-decoration: none; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--accent-2); }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: color-mix(in srgb, var(--accent) 32%, transparent); color: var(--text); }

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 999px; border: 3px solid transparent; background-clip: content-box; }
*::-webkit-scrollbar-thumb:hover { background: var(--line-3); background-clip: content-box; }

.skip-link {
  position: absolute; left: 12px; top: -100px; z-index: 200;
  background: var(--accent); color: var(--accent-ink);
  padding: 12px 18px; border-radius: var(--r-sm); font-weight: 700;
  transition: top var(--t) var(--ease);
}
.skip-link:focus { top: 12px; color: var(--accent-ink); }

/* ==========================================================================
   04 · TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.028em;
  color: var(--text);
  margin: 0 0 .5em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: 1.25; letter-spacing: -.02em; }
h4 { font-size: 1.02rem; line-height: 1.35; letter-spacing: -.015em; }
p  { margin: 0 0 1.1rem; }
p:last-child { margin-bottom: 0; }

.display {
  font-size: var(--fs-display);
  line-height: 1.02;
  letter-spacing: -.04em;
}
.lead {
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--text-2);
  text-wrap: pretty;
}
.muted   { color: var(--text-2); }
.muted-2 { color: var(--text-3); }
.small   { font-size: var(--fs-sm); }

/* Accent gradient text — used sparingly, on one phrase per page */
.grad {
  background: linear-gradient(96deg, var(--accent) 0%, var(--accent-2) 42%, var(--lvl1) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* Mono eyebrow — the "engineered" signal */
.eyebrow {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--font-mono);
  font-size: .715rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1rem;
}
.eyebrow::before {
  content: ""; width: 22px; height: 1px; flex: none;
  background: linear-gradient(90deg, transparent, currentColor);
}
.eyebrow.no-rule::before { display: none; }
.center .eyebrow { justify-content: center; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ==========================================================================
   05 · LAYOUT PRIMITIVES
   ========================================================================== */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.narrow    { max-width: var(--maxw-narrow); margin-inline: auto; }

.section    { padding: clamp(58px, 8vw, 110px) 0; position: relative; }
.section-sm { padding: clamp(40px, 5vw, 64px) 0; position: relative; }
.section-tint { background: linear-gradient(180deg, transparent, var(--glass) 18%, var(--glass) 82%, transparent); }

/* Hairline section divider */
.rule { border: 0; height: 1px; margin: 0;
  background: linear-gradient(90deg, transparent, var(--line-2) 18%, var(--line-2) 82%, transparent); }

.center { text-align: center; }
.stack  { display: grid; gap: 1rem; }

.sec-head { max-width: 660px; margin-bottom: clamp(34px, 4vw, 56px); }
.sec-head.center { margin-inline: auto; }
.sec-head p { color: var(--text-2); font-size: 1.06rem; margin: 0; text-wrap: pretty; }
.sec-head h2 { margin-bottom: .45em; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(18px, 2.4vw, 30px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.4vw, 26px); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(16px, 2vw, 24px); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Blueprint grid overlay — used on hero + feature panels */
.gridlines { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.gridlines::before {
  content: ""; position: absolute; inset: -1px;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 20%, transparent 78%);
}

/* ==========================================================================
   06 · BUTTONS
   ========================================================================== */
.btn {
  --btn-py: 12px; --btn-px: 21px;
  position: relative; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: var(--btn-py) var(--btn-px);
  font-family: var(--font-body);
  font-size: .945rem; font-weight: 650; letter-spacing: -.01em; line-height: 1.15;
  border-radius: var(--r-pill); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: transform var(--t-fast) var(--ease), background var(--t) var(--ease),
              border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), color var(--t) var(--ease);
}
.btn:hover  { transform: translateY(-2px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn svg { flex: none; }

.btn-primary {
  background: var(--btn-primary-bg); color: var(--btn-primary-ink);
  box-shadow: 0 1px 0 rgba(255,255,255,.4) inset, 0 10px 26px -14px rgba(0,0,0,.9);
}
.btn-primary:hover { background: var(--btn-primary-hover); color: var(--btn-primary-ink);
  box-shadow: 0 1px 0 rgba(255,255,255,.5) inset, 0 16px 34px -14px rgba(0,0,0,.9); }

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: var(--accent-ink); font-weight: 700;
  box-shadow: 0 1px 0 rgba(255,255,255,.28) inset, 0 14px 34px -16px color-mix(in srgb, var(--accent) 70%, transparent);
}
.btn-accent:hover { color: var(--accent-ink); filter: brightness(1.07);
  box-shadow: 0 1px 0 rgba(255,255,255,.35) inset, 0 20px 44px -16px color-mix(in srgb, var(--accent) 80%, transparent); }

.btn-glass {
  background: var(--glass); color: var(--text);
  border-color: var(--line-2); backdrop-filter: blur(12px);
}
.btn-glass:hover { background: var(--glass-2); border-color: var(--line-3); color: var(--text); }

.btn-quiet { background: transparent; color: var(--text-2); padding-inline: 14px; }
.btn-quiet:hover { color: var(--text); background: var(--glass); }

.btn-lg    { --btn-py: 15px; --btn-px: 28px; font-size: 1.02rem; }
.btn-sm    { --btn-py: 8px;  --btn-px: 15px; font-size: .85rem; }
.btn-block { display: flex; width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }

.btn-icon {
  --btn-px: 0;
  width: 38px; height: 38px; padding: 0; border-radius: var(--r-sm);
  background: var(--glass); border-color: var(--line); color: var(--text-2);
}
.btn-icon:hover { color: var(--text); background: var(--glass-2); border-color: var(--line-2); transform: none; }

/* Arrow that slides on hover */
.btn .arw { transition: transform var(--t) var(--ease-expo); }
.btn:hover .arw { transform: translateX(3px); }

/* ==========================================================================
   07 · HEADER / NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 90;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease), backdrop-filter var(--t);
  border-bottom: 1px solid transparent;
}
.site-header.stuck {
  background: var(--scrim);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav { display: flex; align-items: center; gap: 14px; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 1 auto; min-width: 0; overflow: hidden;
  font-family: var(--font-display); font-weight: 700; font-size: 1.02rem;
  letter-spacing: -.03em; color: var(--text); }
.brand:hover { color: var(--text); text-decoration: none; }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand .mark svg { width: 100%; height: 100%; display: block; }
.brand .wordmark { display: flex; flex-direction: column; line-height: 1; min-width: 0; overflow: hidden; }
/* truncate rather than collide with the controls if space ever runs out */
.brand .wordmark b { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand .wordmark span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.brand .wordmark span {
  font-family: var(--font-mono); font-size: .58rem; font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--text-3); margin-top: 4px;
}

.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0 0 0 18px; padding: 0; }
.nav-links a {
  display: block; position: relative; white-space: nowrap;
  padding: 9px 13px; border-radius: var(--r-xs);
  color: var(--text-2); font-size: .915rem; font-weight: 550; letter-spacing: -.01em;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--glass); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 3px; height: 2px;
  border-radius: 2px; background: var(--accent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 70%, transparent);
}
.nav-actions { display: flex; align-items: center; gap: 8px; flex: none; margin-left: auto; }

.nav-toggle { display: none; }

/* Mobile drop panel — a sibling of the bar, never a duplicate control set */
.nav-panel {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  box-shadow: var(--shadow-2);
  padding: 14px 0 20px;
  max-height: calc(100dvh - var(--header-h)); overflow: auto;
}
.nav-panel .nav-links { flex-direction: column; align-items: stretch; gap: 2px; margin: 0; }
.nav-panel .nav-links a { padding: 13px 14px; font-size: 1rem; border-radius: var(--r-sm); }
.nav-panel .nav-links a.active { background: var(--glass); color: var(--accent); }
.nav-panel .nav-links a.active::after { display: none; }
.nav-panel .np-actions { display: grid; gap: 9px; margin-top: 14px; padding-top: 16px; border-top: 1px solid var(--line); }

/* Search trigger in header */
.nav-search {
  display: inline-flex; align-items: center; gap: 9px;
  height: 38px; padding: 0 10px 0 12px; min-width: 190px;
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--r-sm);
  color: var(--text-3); font-size: .875rem; cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}
.nav-search:hover { border-color: var(--line-2); color: var(--text-2); background: var(--glass-2); }
.nav-search .kbd { margin-left: auto; }
.kbd {
  font-family: var(--font-mono); font-size: .68rem; font-weight: 500;
  padding: 3px 6px; border-radius: 5px; color: var(--text-3);
  background: var(--glass-2); border: 1px solid var(--line);
  line-height: 1;
}

@media (max-width: 1180px) { .nav-search { min-width: 0; padding-right: 8px; } .nav-search .lbl, .nav-search .kbd { display: none; } }
@media (min-width: 941px) { .nav-panel { display: none !important; } }
@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }
  .site-header .container.nav > .nav-links { display: none; }
  .nav-search { display: none; }
  .site-header.menu-open { background: var(--scrim); backdrop-filter: blur(18px) saturate(150%); border-bottom-color: var(--line); }
}
/* Small phones: drop the strapline and the secondary auth link */
@media (max-width: 620px) {
  .site-header .brand .wordmark span { display: none; }
  .site-header .brand { font-size: .95rem; gap: 9px; }
  .site-header .brand .mark { width: 30px; height: 30px; }
  .nav-actions .hide-sm { display: none; }
  .nav-actions { gap: 6px; }
  :root { --header-h: 62px; }
}
/* Very small phones: the mark alone carries the brand so nothing crowds */
@media (max-width: 470px) {
  .site-header .brand .wordmark { display: none; }
  .nav-actions .btn-sm { --btn-px: 13px; }
}

/* ==========================================================================
   08 · HERO
   ========================================================================== */
.hero { position: relative; padding: clamp(48px, 7vw, 86px) 0 clamp(56px, 7vw, 96px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: clamp(32px, 4vw, 60px); align-items: center; position: relative; z-index: 1; }
@media (max-width: 1000px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.hero h1 { margin-bottom: .38em; }
.hero .lead { max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 30px;
  font-size: .875rem; color: var(--text-3); }
@media (max-width: 560px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .cta-actions .btn, .gate-actions .btn { width: 100%; }
}
.hero-proof span { display: inline-flex; align-items: center; gap: 8px; }
.hero-proof svg { color: var(--accent); flex: none; }

/* Announcement pill above the H1 */
.announce {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 7px; margin-bottom: 22px;
  background: var(--glass); border: 1px solid var(--line-2); border-radius: var(--r-pill);
  font-size: .82rem; color: var(--text-2); backdrop-filter: blur(10px);
}
.announce b {
  font-family: var(--font-mono); font-size: .66rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent-ink);
  background: var(--accent); padding: 4px 9px; border-radius: var(--r-pill);
}

/* Hero visual — schematic panel (stands in for photography) */
.hero-visual {
  position: relative; overflow: hidden; padding: 0;
  border-radius: var(--r-xl); border: 1px solid var(--line-2);
  background: linear-gradient(165deg, var(--surface-2), var(--bg-2) 70%);
  box-shadow: var(--shadow-2);
}
.hero-visual::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 80%);
}
.hv-bar {
  position: relative; display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--text-3); background: var(--glass);
}
.hv-bar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex: none;
  box-shadow: 0 0 10px var(--ok); }
.hv-bar .right { margin-left: auto; color: var(--accent); }
.hv-svg { position: relative; display: block; width: 100%; height: auto; padding: 6px 8px 0; }
.hv-foot { position: relative; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line); border-top: 1px solid var(--line); }
.hv-foot .c { background: var(--bg-2); padding: 13px 14px; }
.hv-foot .k { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-3); }
.hv-foot .v { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  letter-spacing: -.03em; margin-top: 3px; }
.hv-foot .v em { font-style: normal; color: var(--accent); }

/* Stat band under the hero */
.statband { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.statband .cell { background: var(--bg-2); padding: 22px 20px; text-align: center; }
.statband .n { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.15rem);
  font-weight: 700; letter-spacing: -.035em; color: var(--text); line-height: 1; }
.statband .n .u { color: var(--accent); }
.statband .l { font-family: var(--font-mono); font-size: .68rem; font-weight: 500; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-3); margin-top: 9px; }
@media (max-width: 720px) { .statband { grid-template-columns: repeat(2, 1fr); } }

/* ==========================================================================
   09 · CARDS & SURFACES
   ========================================================================== */
.card {
  position: relative; isolation: isolate;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 2.4vw, 28px);
  box-shadow: var(--shadow-1);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.card-link { display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.card-link:hover { text-decoration: none; color: inherit; transform: translateY(-4px);
  border-color: var(--line-2); box-shadow: var(--shadow-2); }

/* Pointer-tracking spotlight (set --mx/--my in JS) */
.card.spot::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%),
              color-mix(in srgb, var(--accent) 13%, transparent), transparent 68%);
  opacity: 0; transition: opacity var(--t) var(--ease);
}
.card.spot:hover::before { opacity: 1; }

.card h3 { margin-bottom: .5em; }
.card > p { color: var(--text-2); font-size: .955rem; }

/* Level cards */
.levels-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 22px); }
@media (max-width: 960px) { .levels-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .levels-grid { grid-template-columns: 1fr; } }

.level-card { --lc: var(--accent); position: relative; overflow: hidden; }
.level-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--lc), transparent 72%);
  opacity: .85; transition: opacity var(--t) var(--ease);
}
.level-card:hover::after { opacity: 1; }
.level-card .lc-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.level-badge {
  width: 46px; height: 46px; flex: none; border-radius: var(--r-sm);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; letter-spacing: -.03em;
  color: var(--lc);
  background: color-mix(in srgb, var(--lc) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--lc) 32%, transparent);
  box-shadow: inset 0 0 22px -8px color-mix(in srgb, var(--lc) 60%, transparent);
}
.level-card h3 { margin-bottom: .4em; }
.level-card p { color: var(--text-2); font-size: .935rem; flex: 1; margin-bottom: 18px; }
.level-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .69rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-3); }
.level-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-3); }
.level-card .go { display: inline-flex; align-items: center; gap: 7px; margin-top: 16px;
  font-size: .9rem; font-weight: 650; color: var(--lc); }
.level-card:hover .go .arw { transform: translateX(4px); }
.level-card .go .arw { transition: transform var(--t) var(--ease-expo); }

.lvl-1 { --lc: var(--lvl1); } .lvl-2 { --lc: var(--lvl2); } .lvl-3 { --lc: var(--lvl3); }
.lvl-4 { --lc: var(--lvl4); } .lvl-5 { --lc: var(--lvl5); }

/* Feature / bento */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: clamp(16px, 2vw, 22px); }
.bento > * { grid-column: span 2; }
.bento > .wide { grid-column: span 3; }
.bento > .full { grid-column: span 6; }
@media (max-width: 900px) { .bento { grid-template-columns: repeat(2, 1fr); }
  .bento > *, .bento > .wide, .bento > .full { grid-column: span 2; } }

.f-ico {
  width: 44px; height: 44px; border-radius: var(--r-sm); display: grid; place-items: center;
  color: var(--accent); background: color-mix(in srgb, var(--accent) 11%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  margin-bottom: 16px;
}

/* Chips & badges */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: .67rem; font-weight: 700;
  letter-spacing: .11em; text-transform: uppercase;
  padding: 5px 10px; border-radius: var(--r-pill);
  color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}
.chip-free { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent);
  border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.chip-quiet { color: var(--text-3); background: var(--glass); border-color: var(--line); }

/* Checklists */
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.ticks li { display: flex; gap: 11px; align-items: flex-start; font-size: .94rem; color: var(--text-2); }
.ticks li svg { flex: none; margin-top: 4px; color: var(--accent); }
.ticks.ok li svg { color: var(--ok); }

/* Quote / testimonial */
.quote { display: flex; flex-direction: column; gap: 18px; }
.quote blockquote { margin: 0; font-size: 1.02rem; line-height: 1.6; color: var(--text); }
.quote .who { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.quote .av { width: 40px; height: 40px; border-radius: 50%; flex: none; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: .9rem; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.quote .who b { display: block; font-size: .9rem; font-weight: 650; }
.quote .who span { display: block; font-size: .8rem; color: var(--text-3); }
.stars { display: flex; gap: 3px; color: var(--warn); }

/* Accordion (FAQ) */
.acc { border-top: 1px solid var(--line); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary {
  list-style: none; cursor: pointer; padding: 22px 44px 22px 0; position: relative;
  font-family: var(--font-display); font-weight: 600; font-size: 1.06rem; letter-spacing: -.02em;
  color: var(--text); transition: color var(--t-fast) var(--ease);
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary:hover { color: var(--accent); }
.acc summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 11px; height: 11px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: translateY(-70%) rotate(45deg); transition: transform var(--t) var(--ease); opacity: .6;
}
.acc details[open] summary::after { transform: translateY(-25%) rotate(-135deg); opacity: 1; }
.acc .acc-body { padding: 0 44px 24px 0; color: var(--text-2); font-size: .97rem; }
.acc details[open] .acc-body { animation: fadeUp .35s var(--ease-expo) both; }

/* ==========================================================================
   10 · CURRICULUM / MODULES / LESSONS
   ========================================================================== */
.page-hero { position: relative; padding: clamp(38px, 5vw, 66px) 0 clamp(30px, 4vw, 46px); overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(760px 300px at 12% 0%, color-mix(in srgb, var(--lc, var(--accent)) 17%, transparent), transparent 66%);
}
.page-hero > * { position: relative; }
.crumbs { display: flex; align-items: center; gap: 9px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-3); margin-bottom: 20px; }
.crumbs a { color: var(--text-3); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { opacity: .5; }

.course-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: clamp(24px, 3vw, 44px); align-items: start; }
@media (max-width: 1000px) { .course-layout { grid-template-columns: 1fr; } }

.module {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  margin-bottom: 14px; overflow: hidden; box-shadow: var(--shadow-1);
  transition: border-color var(--t) var(--ease);
}
.module:hover { border-color: var(--line-2); }
.module > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 16px;
  padding: 18px 22px; background: var(--glass); transition: background var(--t-fast) var(--ease);
}
.module > summary::-webkit-details-marker { display: none; }
.module > summary:hover { background: var(--glass-2); }
.module .m-idx {
  font-family: var(--font-mono); font-size: .7rem; font-weight: 700; letter-spacing: .06em;
  color: var(--lc, var(--accent)); flex: none;
  padding: 5px 9px; border-radius: 7px;
  background: color-mix(in srgb, var(--lc, var(--accent)) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--lc, var(--accent)) 26%, transparent);
}
.module .m-title { font-family: var(--font-display); font-weight: 600; font-size: 1.03rem;
  letter-spacing: -.02em; flex: 1; min-width: 0; }
.module .m-count { font-family: var(--font-mono); font-size: .72rem; color: var(--text-3); flex: none; }
.module .m-caret { flex: none; color: var(--text-3); transition: transform var(--t) var(--ease); }
.module[open] .m-caret { transform: rotate(90deg); }
.module[open] > summary { border-bottom: 1px solid var(--line); }

.lesson {
  display: flex; align-items: center; gap: 14px; padding: 13px 22px;
  color: var(--text); border-bottom: 1px solid var(--line);
  transition: background var(--t-fast) var(--ease), padding-left var(--t) var(--ease);
}
.lesson:last-child { border-bottom: 0; }
.lesson:hover { background: var(--glass); text-decoration: none; color: var(--text); padding-left: 27px; }
.lesson.is-current { background: color-mix(in srgb, var(--accent) 9%, transparent);
  box-shadow: inset 3px 0 0 var(--accent); }
.lesson .l-ico {
  width: 32px; height: 32px; flex: none; border-radius: 9px; display: grid; place-items: center;
  color: var(--text-3); background: var(--glass); border: 1px solid var(--line);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.lesson:hover .l-ico { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.lesson.is-done .l-ico { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent);
  border-color: color-mix(in srgb, var(--ok) 34%, transparent); }
.lesson.is-locked .l-ico { color: var(--text-3); }
.lesson .l-title { flex: 1; min-width: 0; font-size: .95rem; font-weight: 550; letter-spacing: -.01em; }
.lesson.is-done .l-title { color: var(--text-2); }
.lesson .l-right { display: flex; align-items: center; gap: 10px; flex: none; }
.lesson .l-dur { font-family: var(--font-mono); font-size: .74rem; color: var(--text-3); }

/* Sticky sidebar card */
.side-sticky { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 16px; }

.progress-line { height: 5px; border-radius: 999px; background: var(--glass-2); overflow: hidden; }
.progress-line > i { display: block; height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, var(--lc, var(--accent)), var(--accent-2));
  transition: width .7s var(--ease-expo); }

.kv { display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
.kv b { font-size: .82rem; color: var(--text); letter-spacing: 0; }

.price-row { display: flex; align-items: baseline; gap: 8px; }
.price-row .amt { font-family: var(--font-display); font-size: 2.5rem; font-weight: 700;
  letter-spacing: -.045em; line-height: 1; }
.price-row .per { font-size: .88rem; color: var(--text-3); }
.price-strike { font-size: 1.05rem; color: var(--text-3); text-decoration: line-through; }

/* ==========================================================================
   11 · LESSON PLAYER
   ========================================================================== */
.player-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: clamp(22px, 2.6vw, 36px); align-items: start; }
@media (max-width: 1060px) { .player-layout { grid-template-columns: 1fr; } }

.stage-wrap { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line);
  background: #05070A; box-shadow: var(--shadow-2); }
.video-frame { position: relative; padding-top: 56.25%; background: #05070A; }
.video-frame > iframe, .video-frame > video, .video-frame > .fill { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-ph { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 26px;
  background:
    radial-gradient(520px 260px at 50% 30%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.018) 0 12px, transparent 12px 24px); }
.video-ph .ph-in { max-width: 380px; }
.video-ph .ph-ico { width: 62px; height: 62px; margin: 0 auto 16px; border-radius: 50%;
  display: grid; place-items: center; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.video-ph h4 { margin-bottom: 6px; }
.video-ph p { color: var(--text-3); font-size: .88rem; margin: 0; }

.gate {
  position: relative; overflow: hidden; text-align: center;
  padding: clamp(30px, 5vw, 52px) clamp(20px, 4vw, 40px);
  background: linear-gradient(150deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line-2); border-radius: var(--r-lg); box-shadow: var(--shadow-2);
}
.gate::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 260px at 50% -20%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%);
}
.gate > * { position: relative; }
.gate .lockring { width: 62px; height: 62px; margin: 0 auto 20px; border-radius: 50%;
  display: grid; place-items: center; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent); }
.gate p { color: var(--text-2); max-width: 460px; margin-inline: auto; }
.gate .gate-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }

.lesson-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 0; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.lesson-bar .spacer { flex: 1; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 22px; overflow-x: auto; }
.tabs button {
  background: none; border: 0; cursor: pointer; position: relative;
  padding: 12px 14px; font-size: .92rem; font-weight: 600; color: var(--text-3); white-space: nowrap;
  transition: color var(--t-fast) var(--ease);
}
.tabs button:hover { color: var(--text-2); }
.tabs button[aria-selected="true"] { color: var(--text); }
.tabs button[aria-selected="true"]::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: -1px; height: 2px;
  background: var(--accent); border-radius: 2px; box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 60%, transparent);
}
.tabpanel[hidden] { display: none; }
.prose { color: var(--text-2); font-size: .98rem; max-width: 68ch; }
.prose h4 { color: var(--text); margin: 1.6em 0 .5em; }
.prose h4:first-child { margin-top: 0; }
.prose ul { padding-left: 1.1em; margin: 0 0 1.1rem; }
.prose li { margin-bottom: .45em; }
.prose code { font-family: var(--font-mono); font-size: .86em; padding: 2px 6px; border-radius: 5px;
  background: var(--glass-2); border: 1px solid var(--line); color: var(--text); }

.notepad {
  width: 100%; min-height: 190px; resize: vertical;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r);
  padding: 16px; color: var(--text); font-size: .95rem; line-height: 1.6;
}
.notepad::placeholder { color: var(--text-3); }
.notepad:focus { outline: none; border-color: color-mix(in srgb, var(--accent) 50%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent); }

.side-list { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-1); }
.side-list .sl-head { padding: 16px 18px; border-bottom: 1px solid var(--line); background: var(--glass); }
.side-list .sl-body { max-height: min(64vh, 620px); overflow: auto;
  mask-image: linear-gradient(180deg, #000 calc(100% - 30px), transparent);
  -webkit-mask-image: linear-gradient(180deg, #000 calc(100% - 30px), transparent); }
.side-list .lesson { padding: 11px 16px; }
.side-list .lesson:hover { padding-left: 19px; }
.side-list .lesson .l-title { font-size: .875rem; }
.side-list .sl-mod { padding: 13px 16px 7px; display: flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--text-3); background: var(--glass); border-block: 1px solid var(--line); }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 20px);
  z-index: 130; display: flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-radius: var(--r-pill);
  background: var(--surface-3); border: 1px solid var(--line-2); color: var(--text);
  font-size: .9rem; box-shadow: var(--shadow-2);
  opacity: 0; pointer-events: none; transition: opacity var(--t) var(--ease), transform var(--t) var(--ease-expo);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast svg { color: var(--ok); flex: none; }

/* ==========================================================================
   12 · 3D EXPLORER
   ========================================================================== */
.viewer-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: clamp(18px, 2vw, 24px); align-items: start; }
@media (max-width: 1060px) { .viewer-wrap { grid-template-columns: 1fr; } }

.viewer-stage {
  position: relative; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-2);
  background: radial-gradient(120% 90% at 50% 0%, #16202D 0%, #080B11 62%, #05070A 100%);
}
[data-theme="day"] .viewer-stage { background: radial-gradient(120% 90% at 50% 0%, #FFFFFF 0%, #E9EEF5 60%, #DCE3ED 100%); }
#three-canvas { width: 100%; height: clamp(400px, 62vh, 660px); display: block; cursor: grab; touch-action: none; }
#three-canvas:active { cursor: grabbing; }

.viewer-toolbar {
  position: absolute; left: 14px; right: 14px; top: 14px; z-index: 3;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; pointer-events: none;
}
.viewer-toolbar > * { pointer-events: auto; }
.vt-group { display: flex; align-items: center; gap: 2px; padding: 4px;
  background: rgba(10,14,20,.62); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r-sm);
  backdrop-filter: blur(14px); }
[data-theme="day"] .vt-group { background: rgba(255,255,255,.78); border-color: rgba(10,22,40,.12); }
.vt-btn {
  display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 11px;
  background: none; border: 0; border-radius: 8px; cursor: pointer;
  font-size: .82rem; font-weight: 600; color: var(--text-2);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.vt-btn:hover { background: var(--glass-2); color: var(--text); }
.vt-btn[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent); }
.vt-slider { display: flex; align-items: center; gap: 10px; padding: 0 12px; height: 32px; }
.vt-slider label { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-3); }

input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 118px; height: 4px; border-radius: 999px;
  background: var(--line-2); cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 15px; height: 15px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--bg-2);
  box-shadow: 0 0 0 1px var(--accent), 0 2px 8px rgba(0,0,0,.5);
}
input[type="range"]::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%; background: var(--accent);
  border: 2px solid var(--bg-2); box-shadow: 0 0 0 1px var(--accent);
}

.viewer-hint {
  position: absolute; left: 16px; right: 16px; bottom: 14px; z-index: 3;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em;
  color: var(--text-3); pointer-events: none;
  display: flex; gap: 14px; flex-wrap: wrap;
}
@media (max-width: 700px) {
  .viewer-hint { font-size: .62rem; gap: 10px; }
  .viewer-hint span:nth-child(2) { display: none; }
  .viewer-toolbar { gap: 6px; }
  .vt-btn { height: 30px; padding: 0 9px; font-size: .76rem; }
  .vt-slider { padding: 0 9px; gap: 7px; }
  input[type="range"] { width: 84px; }
  #three-canvas { height: clamp(360px, 52vh, 520px); }
}
.viewer-loading {
  position: absolute; inset: 0; z-index: 4; display: grid; place-items: center;
  background: var(--bg); transition: opacity .5s var(--ease); font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-3);
}
.viewer-loading.hide { opacity: 0; pointer-events: none; }

/* Hotspot pins layered over the canvas */
#hotspots { position: absolute; inset: 0; z-index: 2; pointer-events: none; overflow: hidden; }
#hotspots > * { pointer-events: auto; }
.hotspot {
  position: absolute; z-index: 2; transform: translate(-50%, -50%);
  width: 26px; height: 26px; border-radius: 50%; cursor: pointer; padding: 0;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: .66rem; font-weight: 700;
  color: #06121A; background: var(--accent);
  border: 2px solid rgba(255,255,255,.9);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 25%, transparent), 0 4px 14px rgba(0,0,0,.5);
  transition: transform var(--t) var(--ease-expo), opacity var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.hotspot:hover { transform: translate(-50%, -50%) scale(1.22); }
.hotspot.active { box-shadow: 0 0 0 7px color-mix(in srgb, var(--accent) 30%, transparent), 0 4px 18px rgba(0,0,0,.6); }
.hotspot.behind { opacity: .28; }
.hotspot[hidden] { display: none; }

.viewer-side { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; box-shadow: var(--shadow-1); display: flex; flex-direction: column; }
.viewer-side .vs-head { padding: 16px 18px 14px; border-bottom: 1px solid var(--line); background: var(--glass); }
.comp-search {
  width: 100%; height: 38px; padding: 0 12px; margin-top: 12px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r-xs);
  color: var(--text); font-size: .88rem;
}
.comp-search:focus { outline: none; border-color: color-mix(in srgb, var(--accent) 50%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
.comp-list { list-style: none; margin: 0; padding: 8px; overflow: auto; max-height: 340px;
  mask-image: linear-gradient(180deg, #000 calc(100% - 26px), transparent);
  -webkit-mask-image: linear-gradient(180deg, #000 calc(100% - 26px), transparent); }
.comp-list .grp { padding: 12px 10px 6px; display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: .64rem; font-weight: 700; letter-spacing: .15em;
  text-transform: uppercase; color: var(--text-3); }
.comp-list .grp::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.comp-list button {
  display: flex; align-items: center; gap: 11px; width: 100%; text-align: left;
  background: none; border: 1px solid transparent; padding: 10px 11px; border-radius: 10px;
  cursor: pointer; color: var(--text-2); transition: background var(--t-fast) var(--ease),
  color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.comp-list button:hover { background: var(--glass); color: var(--text); }
.comp-list button.active { background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent); color: var(--text); }
.comp-list .num { font-family: var(--font-mono); font-size: .66rem; color: var(--text-3);
  width: 20px; flex: none; text-align: right; }
.comp-list button.active .num { color: var(--accent); }
.comp-list .nm { font-size: .885rem; font-weight: 550; letter-spacing: -.01em; }
.comp-info { padding: 18px; border-top: 1px solid var(--line); background: var(--glass); }
.comp-info h4 { margin-bottom: 8px; }
.comp-info p { font-size: .9rem; color: var(--text-2); margin: 0; }
.comp-info .tagrow { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }

/* ==========================================================================
   13 · PRICING
   ========================================================================== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 22px); align-items: stretch; }
@media (max-width: 980px) { .pricing-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; } }

.plan { display: flex; flex-direction: column; position: relative; }
.plan.featured {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: var(--glow), var(--shadow-2);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, var(--surface)), var(--surface-2));
}
.plan .tag {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: .63rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  padding: 5px 13px; border-radius: var(--r-pill); white-space: nowrap;
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--accent) 80%, transparent);
}
.plan h3 { margin-bottom: 4px; }
.plan .sub { font-size: .875rem; color: var(--text-3); margin-bottom: 20px; }
.plan .ticks { margin: 22px 0 26px; }
.plan .plan-cta { margin-top: auto; }
.plan .fine { font-size: .76rem; color: var(--text-3); text-align: center; margin-top: 12px; }

.compare { width: 100%; border-collapse: collapse; font-size: .92rem; }
.compare th, .compare td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.compare thead th { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-3); font-weight: 700; }
.compare td:not(:first-child), .compare th:not(:first-child) { text-align: center; width: 17%; }
.compare tbody td:first-child { color: var(--text-2); }
.compare .yes { color: var(--ok); }
.compare .no  { color: var(--text-3); opacity: .5; }
.compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-lg);
  background: var(--surface); box-shadow: var(--shadow-1); }
.compare-wrap .compare { min-width: 620px; }
.compare tbody tr:last-child td { border-bottom: 0; }

/* Guarantee band */
.guarantee { display: flex; align-items: center; gap: clamp(18px, 3vw, 30px); flex-wrap: wrap;
  padding: clamp(22px, 3vw, 32px); }
.guarantee .seal { width: 74px; height: 74px; flex: none; border-radius: 50%; display: grid; place-items: center;
  color: var(--ok); background: color-mix(in srgb, var(--ok) 11%, transparent);
  border: 1px dashed color-mix(in srgb, var(--ok) 42%, transparent); }
.guarantee .g-body { flex: 1; min-width: 260px; }
.guarantee h3 { margin-bottom: 6px; }
.guarantee p { color: var(--text-2); font-size: .95rem; margin: 0; }

/* CTA band */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  border-radius: var(--r-xl); border: 1px solid var(--line-2);
  padding: clamp(38px, 6vw, 72px) clamp(22px, 4vw, 48px);
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow-2);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(700px 320px at 50% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 68%),
    radial-gradient(500px 260px at 90% 110%, color-mix(in srgb, var(--lvl1) 16%, transparent), transparent 70%);
}
.cta-band > * { position: relative; }
.cta-band p { color: var(--text-2); max-width: 520px; margin-inline: auto; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }

/* ==========================================================================
   14 · DASHBOARD & PROGRESS
   ========================================================================== */
.ring { --p: 0; --sz: 62px; width: var(--sz); height: var(--sz); flex: none; position: relative;
  display: grid; place-items: center; }
.ring::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(var(--lc, var(--accent)) calc(var(--p) * 1%), var(--glass-2) 0);
  mask: radial-gradient(farthest-side, transparent calc(100% - 6px), #000 calc(100% - 5px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 6px), #000 calc(100% - 5px));
  transition: background .8s var(--ease-expo);
}
.ring span { font-family: var(--font-mono); font-size: .74rem; font-weight: 700; color: var(--text); }

.resume-card { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 26px); flex-wrap: wrap; }
.resume-card .rc-body { flex: 1; min-width: 240px; }
.resume-card .rc-thumb {
  width: 148px; height: 84px; flex: none; border-radius: var(--r-sm); overflow: hidden;
  background: radial-gradient(120% 100% at 30% 0%, color-mix(in srgb, var(--accent) 22%, transparent), #05070A 72%);
  border: 1px solid var(--line-2); display: grid; place-items: center; color: var(--accent);
}
@media (max-width: 560px) { .resume-card .rc-thumb { width: 100%; height: 110px; } }

/* ==========================================================================
   15 · SEARCH PALETTE
   ========================================================================== */
.palette-backdrop {
  position: fixed; inset: 0; z-index: 140; display: none;
  background: rgba(4,6,10,.66); backdrop-filter: blur(8px);
  padding: clamp(50px, 12vh, 130px) 18px 24px;
}
.palette-backdrop.open { display: block; animation: fadeIn .18s var(--ease) both; }
.palette {
  max-width: 620px; margin-inline: auto;
  background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--r-lg);
  box-shadow: var(--shadow-2); overflow: hidden;
  animation: popIn .26s var(--ease-expo) both;
}
.palette .p-input { display: flex; align-items: center; gap: 12px; padding: 15px 18px;
  border-bottom: 1px solid var(--line); }
.palette .p-input svg { color: var(--text-3); flex: none; }
.palette input {
  flex: 1; background: none; border: 0; outline: none; font-size: 1.02rem; color: var(--text);
}
.palette input::placeholder { color: var(--text-3); }
.palette .p-results { max-height: min(52vh, 420px); overflow: auto; padding: 8px; }
.palette .p-item {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 10px 12px; border-radius: 10px; border: 0; background: none; cursor: pointer;
  color: var(--text-2); transition: background var(--t-fast) var(--ease);
}
.palette .p-item:hover, .palette .p-item.sel { background: var(--glass-2); color: var(--text); }
.palette .p-item .pi-ico { width: 30px; height: 30px; flex: none; border-radius: 8px; display: grid;
  place-items: center; color: var(--lc, var(--accent));
  background: color-mix(in srgb, var(--lc, var(--accent)) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--lc, var(--accent)) 28%, transparent);
  font-family: var(--font-mono); font-size: .68rem; font-weight: 700; }
.palette .p-item .pi-t { flex: 1; min-width: 0; font-size: .92rem; font-weight: 550; color: var(--text); }
.palette .p-item .pi-s { font-size: .74rem; color: var(--text-3); display: block; font-weight: 400; margin-top: 1px; }
.palette .p-empty { padding: 34px 20px; text-align: center; color: var(--text-3); font-size: .9rem; }
.palette .p-foot { display: flex; align-items: center; gap: 16px; padding: 11px 18px;
  border-top: 1px solid var(--line); background: var(--glass); font-size: .74rem; color: var(--text-3); }
.palette .p-foot span { display: inline-flex; align-items: center; gap: 6px; }
mark { background: color-mix(in srgb, var(--accent) 26%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }

/* ==========================================================================
   16 · FOOTER
   ========================================================================== */
.site-footer { position: relative; margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--line); background: var(--bg-2); }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: clamp(24px, 3vw, 40px);
  padding: clamp(38px, 5vw, 62px) 0 clamp(28px, 3vw, 40px); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--font-mono); font-size: .66rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--text-3); margin-bottom: 14px; }
.site-footer .fcol a { display: block; padding: 5px 0; color: var(--text-2); font-size: .91rem; }
.site-footer .fcol a:hover { color: var(--accent); }
.site-footer .blurb { color: var(--text-2); font-size: .91rem; max-width: 330px; margin: 16px 0 0; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 20px 0 30px; border-top: 1px solid var(--line); font-size: .82rem; color: var(--text-3); }
.footer-bottom a { color: var(--text-3); }
.footer-bottom a:hover { color: var(--accent); }

/* ==========================================================================
   17 · UTILITIES, MOTION, PRINT
   ========================================================================== */
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 10px; } .mt-2 { margin-top: 18px; } .mt-3 { margin-top: 28px; } .mt-4 { margin-top: 40px; }
.flex { display: flex; } .items-center { align-items: center; } .gap-2 { gap: 10px; } .gap-3 { gap: 16px; }
.wrap { flex-wrap: wrap; }
.full-w { width: 100%; }

/* Install banner (PWA) */
#install-banner {
  position: fixed; left: 50%; bottom: 20px; transform: translate(-50%, 130%);
  z-index: 120; width: min(440px, calc(100% - 32px));
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: var(--r);
  background: var(--surface-3); border: 1px solid var(--line-2);
  box-shadow: var(--shadow-2);
  visibility: hidden;
  transition: transform var(--t-slow) var(--ease-expo), visibility var(--t-slow);
}
#install-banner.show { transform: translate(-50%, 0); visibility: visible; }
#install-banner .ib-ico { width: 38px; height: 38px; flex: none; border-radius: 10px; display: grid;
  place-items: center; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 13%, transparent); }
#install-banner p { margin: 0; font-size: .87rem; flex: 1; color: var(--text-2); }
#install-banner p b { color: var(--text); display: block; font-size: .92rem; }
#install-close { background: none; border: 0; color: var(--text-3); cursor: pointer; padding: 6px;
  line-height: 0; border-radius: 6px; }
#install-close:hover { color: var(--text); background: var(--glass); }

/* Scroll reveal — scoped to .js so a JS failure never hides content */
.js [data-reveal] { opacity: 0; transform: translateY(18px); }
.js [data-reveal].in { opacity: 1; transform: none;
  transition: opacity .7s var(--ease-expo), transform .7s var(--ease-expo);
  transition-delay: var(--d, 0ms); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes popIn  { from { opacity: 0; transform: translateY(-10px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes drift  { to { transform: translateX(120px); } }
@keyframes spin   { to { transform: rotate(360deg); } }

/* Airflow lines — subtle motion in the hero visual */
.airflow path { stroke-dasharray: 40 320; animation: flow 5.6s linear infinite; }
.airflow path:nth-child(2) { animation-delay: -1.4s; }
.airflow path:nth-child(3) { animation-delay: -2.8s; }
.airflow path:nth-child(4) { animation-delay: -4.2s; }
@keyframes flow { to { stroke-dashoffset: -360; } }

.spinner { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--line-2);
  border-top-color: var(--accent); animation: spin .8s linear infinite; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; scroll-behavior: auto !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  body::before, body::after, .site-header, .site-footer, #install-banner, .palette-backdrop { display: none !important; }
  body { background: #fff; color: #000; }
}