/* ============================================================
   ATPulse Codes — plugin showcase
   ============================================================ */

:root {
  --bg: #0b0f14;
  --bg-alt: #0e141b;
  --surface: #121923;
  --surface-2: #161f2b;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #eef2f6;
  --text-dim: #9aa7b5;
  --text-faint: #6b7684;

  --accent: #34d399;
  --accent-2: #38bdf8;
  --accent-3: #f59e0b;
  --accent-rgb: 52, 211, 153;

  --shadow-lg: 0 20px 60px -20px rgba(0, 0, 0, 0.55);
  --shadow-md: 0 10px 30px -12px rgba(0, 0, 0, 0.45);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;

  --ff-heading: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --ff-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --ff-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --header-h: 76px;
  --ease: cubic-bezier(.22, 1, .36, 1);

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-alt: #eef1f5;
  --surface: #ffffff;
  --surface-2: #f7f9fb;
  --border: rgba(15, 23, 33, 0.09);
  --border-strong: rgba(15, 23, 33, 0.16);
  --text: #10151b;
  --text-dim: #4b5563;
  --text-faint: #8a94a1;

  --accent: #0ea875;
  --accent-2: #0284c7;
  --accent-3: #b45309;
  --accent-rgb: 14, 168, 117;

  --shadow-lg: 0 20px 60px -24px rgba(15, 23, 33, 0.25);
  --shadow-md: 0 10px 26px -14px rgba(15, 23, 33, 0.2);
  color-scheme: light;
}

/* ---------- reset ---------- */
* { box-sizing: border-box; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
html {
  scroll-behavior: smooth;
  /* kept on html (not body) so body's overflow stays 'visible' and the
     document element remains the scrolling element — putting this on
     body instead makes body its own scroll container, which silently
     breaks window.scrollY tracking and scroll-event bubbling. */
  overflow-x: hidden;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background .4s var(--ease), color .4s var(--ease);
}

h1, h2, h3, h4 { font-family: var(--ff-heading); font-weight: 600; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
code { font-family: var(--ff-mono); font-size: 0.9em; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 28px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--accent); color: #06251a; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ============================================================
   Background decor: gradient glows, grid, floating blocks
   ============================================================ */
.bg-decor { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; will-change: transform; }
.glow-a {
  width: 620px; height: 620px; top: -220px; left: -160px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation: drift-a 22s ease-in-out infinite;
}
.glow-b {
  width: 560px; height: 560px; bottom: -260px; right: -180px;
  background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
  animation: drift-b 26s ease-in-out infinite;
}
:root[data-theme="light"] .glow { opacity: .18; }

@keyframes drift-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 50px) scale(1.08); }
}
@keyframes drift-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, -40px) scale(1.1); }
}

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  opacity: .5;
}

.floaters { position: absolute; inset: 0; }
.floater {
  position: absolute;
  border-radius: 5px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), .5), rgba(var(--accent-rgb), 0));
  border: 1px solid rgba(var(--accent-rgb), .35);
  animation: float-y linear infinite;
  opacity: .5;
}
@keyframes float-y {
  0%   { transform: translateY(0) rotate(0deg); }
  50%  { transform: translateY(-34px) rotate(8deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

/* cursor spotlight */
.cursor-glow {
  position: fixed; z-index: 1; top: 0; left: 0; width: 480px; height: 480px;
  border-radius: 50%; pointer-events: none; will-change: transform, opacity;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .10) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  opacity: 0; transition: opacity .4s var(--ease);
}
.cursor-glow.is-active { opacity: 1; }

/* scroll progress bar */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 1000; transition: width .08s linear;
  box-shadow: 0 0 12px rgba(var(--accent-rgb), .6);
}

/* ============================================================
   Preloader
   ============================================================ */
.preloader {
  position: fixed; inset: 0; z-index: 3000;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px;
  background: var(--bg);
  transition: opacity .6s var(--ease), visibility .6s var(--ease);
}
.preloader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-mark {
  display: grid; grid-template-columns: repeat(2, 16px); grid-template-rows: repeat(2, 16px); gap: 5px;
}
.preloader-mark span { border-radius: 3px; background: var(--accent); animation: mark-pulse 1.1s ease-in-out infinite; }
.preloader-mark span:nth-child(2) { background: var(--accent-2); animation-delay: .12s; }
.preloader-mark span:nth-child(3) { background: var(--accent-2); animation-delay: .24s; }
.preloader-mark span:nth-child(4) { background: var(--accent); animation-delay: .36s; }
@keyframes mark-pulse {
  0%, 100% { transform: scale(1); opacity: .55; }
  50% { transform: scale(1.18); opacity: 1; }
}
.preloader-bar { width: 180px; height: 3px; border-radius: 2px; background: var(--border); overflow: hidden; }
.preloader-bar i {
  display: block; height: 100%; width: 0%; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .25s var(--ease);
}
.preloader-text { font-family: var(--ff-heading); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-dim); }
.preloader-text .accent { color: var(--accent); }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 2000;
  transform: translate(-50%, 20px);
  background: var(--surface); border: 1px solid var(--border-strong);
  color: var(--text); padding: 12px 18px; border-radius: 999px;
  font-size: 13.5px; font-weight: 500; box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none; transition: all .35s var(--ease);
  display: flex; align-items: center; gap: 8px; max-width: min(90vw, 420px); text-align: center;
}
.toast::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: var(--header-h);
  display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s var(--ease), height .3s var(--ease);
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
  height: 64px;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  display: grid; grid-template-columns: repeat(2, 8px); grid-template-rows: repeat(2, 8px); gap: 3px;
  transition: transform .4s var(--ease);
}
.brand:hover .brand-mark { transform: rotate(90deg); }
.brand-mark span { border-radius: 2px; background: var(--accent); }
.brand-mark span:nth-child(2) { background: var(--accent-2); }
.brand-mark span:nth-child(3) { background: var(--accent-2); }
.brand-mark span:nth-child(4) { background: var(--accent); }
.brand-text { font-family: var(--ff-heading); font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand-text .accent { color: var(--accent); font-weight: 600; }

.main-nav { display: flex; align-items: center; gap: 28px; }
.nav-link {
  position: relative; font-size: 14.5px; font-weight: 500; color: var(--text-dim);
  padding: 6px 0; transition: color .25s var(--ease); white-space: nowrap;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .3s var(--ease); border-radius: 2px;
}
.nav-link:hover, .nav-link.is-active { color: var(--text); }
.nav-link:hover::after, .nav-link.is-active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- language switcher ---------- */
.lang-switch { position: relative; }
.lang-btn { width: auto; padding: 0 12px; gap: 6px; font-size: 12.5px; font-weight: 600; letter-spacing: .02em; }
.lang-btn svg { flex-shrink: 0; }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; min-width: 150px; z-index: 520;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 6px; margin: 0; list-style: none;
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.97); transform-origin: top right;
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s var(--ease);
}
.lang-switch.is-open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.lang-option {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 9px 10px; border-radius: 8px; font-size: 13.5px; font-weight: 500; color: var(--text-dim);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.lang-option:hover { background: var(--surface-2); color: var(--text); }
.lang-option.is-active { color: var(--accent); font-weight: 600; }
.lang-option.is-active::after { content: ""; margin-left: auto; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  color: var(--text-dim); border: 1px solid var(--border);
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface); transform: translateY(-1px); }
.icon-btn svg { transition: opacity .25s var(--ease), transform .4s var(--ease); }
.icon-btn .i-moon { display: none; }
:root[data-theme="light"] .icon-btn .i-sun { display: none; }
:root[data-theme="light"] .icon-btn .i-moon { display: block; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px; width: 38px; height: 38px;
  border-radius: 10px; border: 1px solid var(--border);
}
.nav-toggle span { width: 18px; height: 2px; background: var(--text); margin: 0 auto; border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 9px; justify-content: center;
  padding: 13px 22px; border-radius: 11px; font-size: 14.5px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}
.btn svg { transition: transform .25s var(--ease); flex-shrink: 0; }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: scale(.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06251a; box-shadow: 0 10px 30px -10px rgba(var(--accent-rgb), .55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(var(--accent-rgb), .65); }

.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--border-strong); transform: translateY(-2px); }

.btn-outline { background: transparent; border-color: var(--border-strong); color: var(--text); }
.btn-outline:hover { background: var(--card-accent-soft, var(--surface)); border-color: var(--card-accent, var(--border-strong)); }

.btn-sm { padding: 10px 16px; font-size: 13.5px; }
.btn-block { width: 100%; }

.btn-disabled, .btn-disabled:hover {
  background: var(--surface-2); border-color: var(--border); color: var(--text-faint);
  cursor: default; transform: none; box-shadow: none;
}
.btn-disabled svg { opacity: .5; }
.btn-disabled:hover svg { transform: none; }

.download-meta { font-size: 11px; font-weight: 500; opacity: .75; margin-left: 2px; }

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; z-index: 2; padding: calc(var(--header-h) + 88px) 0 90px; }
.hero-inner { text-align: center; max-width: 780px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px;
}
.hero-inner .eyebrow { justify-content: center; width: 100%; }

.hero-title { font-size: clamp(2.3rem, 5.2vw, 3.6rem); margin-bottom: 22px; }
.grad-text {
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 55%, var(--accent) 100%);
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: grad-flow 6s linear infinite;
}
@keyframes grad-flow { to { background-position: 220% center; } }

.hero-sub { font-size: 17px; color: var(--text-dim); max-width: 600px; margin: 0 auto 34px; }

.err-code {
  font-family: var(--ff-heading); font-weight: 700; line-height: 1;
  font-size: clamp(5rem, 18vw, 9rem); margin: 6px 0 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-cta { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 64px; flex-wrap: wrap; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
  border-top: 1px solid var(--border); padding-top: 34px; margin: 0;
}
.stat dt {
  font-family: var(--ff-heading); font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 700;
  background: linear-gradient(135deg, var(--text), var(--text-dim));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat dd { margin-top: 4px; font-size: 12.5px; color: var(--text-faint); }

/* ============================================================
   Sections (shared)
   ============================================================ */
.section { position: relative; z-index: 2; padding: 96px 0; }
.section-alt { background: color-mix(in srgb, var(--surface) 55%, transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-head { max-width: 620px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 3.4vw, 2.1rem); margin: 6px 0 14px; }
.section-sub { color: var(--text-dim); font-size: 15.5px; }

/* ============================================================
   Plugin cards
   ============================================================ */
.plugin-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.plugin-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 28px 26px;
  display: flex; flex-direction: column;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
}
.plugin-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(140deg, var(--card-accent, var(--accent)), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .35s var(--ease); pointer-events: none;
}
.plugin-card:hover { box-shadow: var(--shadow-lg); border-color: transparent; }
.plugin-card:hover::before { opacity: 1; }
.plugin-card.is-preview { opacity: .92; }

.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }

.plugin-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  color: var(--card-accent, var(--accent));
  background: var(--card-accent-soft, rgba(var(--accent-rgb), .12));
  border: 1px solid color-mix(in srgb, var(--card-accent, var(--accent)) 35%, transparent);
}

.badge {
  font-size: 11.5px; font-weight: 600; letter-spacing: .03em; color: var(--text-dim);
  background: var(--surface-2); border: 1px solid var(--border); padding: 5px 10px; border-radius: 999px;
}
.badge-dev {
  color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent-3) 35%, transparent);
  display: inline-flex; align-items: center; gap: 6px;
}
.badge-dev::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-3); animation: dev-pulse 1.6s ease-in-out infinite; }
@keyframes dev-pulse { 0%, 100% { opacity: .5; } 50% { opacity: 1; } }

.plugin-card h3 { font-size: 21px; margin-bottom: 6px; }
.plugin-tagline { font-size: 14.5px; color: var(--card-accent, var(--accent)); font-weight: 500; margin-bottom: 14px; }
.plugin-desc { font-size: 14.5px; color: var(--text-dim); margin-bottom: 20px; }

.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.chip-list li {
  font-size: 12.5px; font-weight: 500; color: var(--text-dim);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 6px 11px; border-radius: 999px;
}

.card-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.card-foot-row { display: flex; gap: 10px; }
.card-foot-row .btn { flex: 1; }

/* ============================================================
   Quick Start steps
   ============================================================ */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 28px; }
.step-card {
  position: relative; padding: 26px 22px 22px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.step-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.step-num {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; margin-bottom: 14px;
  font-family: var(--ff-heading); font-weight: 700; font-size: 15px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #06251a;
}
.step-card h3 { font-size: 16px; margin-bottom: 6px; }
.step-card p { font-size: 13.5px; color: var(--text-dim); line-height: 1.55; }

/* ============================================================
   Code window (reused by Play and How-to-Play controls)
   ============================================================ */
.code-window {
  background: #0d1218; border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-lg);
}
:root[data-theme="light"] .code-window { background: #111827; }

.code-window-head {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  background: rgba(255, 255, 255, .03); border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f56; } .dot-y { background: #ffbd2e; } .dot-g { background: #27c93f; }
.code-filename { margin-left: 8px; font-family: var(--ff-mono); font-size: 12.5px; color: #8b96a5; }
.code-window-body { padding: 22px 24px; }
.copy-btn {
  margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500;
  color: #9aa7b5; border: 1px solid rgba(255, 255, 255, .1); padding: 6px 10px; border-radius: 7px;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.copy-btn:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.copy-btn.is-copied { color: var(--accent); border-color: var(--accent); }

/* ============================================================
   Play (embedded game)
   ============================================================ */
.play-frame-wrap {
  background: #0d1218; border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-lg);
}
:root[data-theme="light"] .play-frame-wrap { background: #111827; }
.play-frame-head {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  background: rgba(255, 255, 255, .03); border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.play-frame-stage {
  position: relative; width: 100%; aspect-ratio: 16 / 9; max-height: 640px; min-height: 360px; background: #030712;
}
.play-frame { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.play-poster {
  position: absolute; inset: 0; width: 100%; height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px; text-align: center; color: #fff;
  background: radial-gradient(circle at 50% 40%, rgba(52, 211, 153, .16), transparent 60%), #030712;
  transition: opacity .3s var(--ease);
}
.play-poster:hover { opacity: .92; }
.play-poster-icon {
  width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #06251a; transition: transform .3s var(--ease);
}
.play-poster:hover .play-poster-icon { transform: scale(1.08); }
.play-poster-title { font-family: var(--ff-heading); font-size: 18px; font-weight: 600; }
.play-poster-hint { font-size: 12.5px; color: var(--text-faint); max-width: 320px; }
.play-openpage { text-align: center; margin-top: 22px; }

/* ============================================================
   FAQ (native <details>/<summary>)
   ============================================================ */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  overflow: hidden; transition: border-color .25s var(--ease);
}
.faq-item[open] { border-color: var(--border-strong); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 15px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  transition: color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-icon {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface-2); color: var(--text-dim); transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--accent); color: #06251a; }
.faq-answer { padding: 0 22px 20px; color: var(--text-dim); font-size: 14.5px; line-height: 1.65; }

/* ============================================================
   About
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: start; }
.about-text { color: var(--text-dim); font-size: 15px; margin-top: 16px; }
.about-text + .about-text { margin-top: 12px; }

.about-cards { display: flex; flex-direction: column; gap: 16px; }
.mini-card {
  display: flex; align-items: center; gap: 18px; padding: 20px 22px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.mini-card:hover { transform: translateX(4px); border-color: var(--border-strong); }
.mini-num {
  font-family: var(--ff-heading); font-size: 26px; font-weight: 700; color: var(--accent); flex-shrink: 0; width: 40px;
}
.mini-card p { font-size: 13.5px; color: var(--text-dim); }

/* ============================================================
   Tech stack
   ============================================================ */
.stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stack-item {
  display: flex; align-items: center; gap: 12px; padding: 18px 20px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  transition: transform .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}
.stack-item svg { color: var(--accent); flex-shrink: 0; }
.stack-item:hover { transform: translateY(-3px); border-color: var(--border-strong); }

/* ============================================================
   Contact
   ============================================================ */
.contact-box {
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
  background: linear-gradient(135deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 46px 48px;
  position: relative; overflow: hidden;
}
.contact-box::after {
  content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), .18), transparent 70%);
  top: -140px; right: -100px; pointer-events: none;
}
.contact-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { position: relative; z-index: 2; border-top: 1px solid var(--border); padding: 26px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--text-faint); }

/* ============================================================
   Back to top
   ============================================================ */
.back-to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 400;
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--text);
  box-shadow: var(--shadow-md); opacity: 0; transform: translateY(14px) scale(.9); pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease), border-color .3s var(--ease);
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.back-to-top:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

/* ============================================================
   Definition list rows (controls reference, etc.)
   ============================================================ */
.perm-list { display: flex; flex-direction: column; gap: 10px; }
.perm-list li {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  font-size: 13.5px; padding: 10px 12px; background: var(--surface-2); border-radius: 8px;
}
.perm-list code { color: var(--card-accent, var(--accent)); font-weight: 600; }
.perm-list span { color: var(--text-dim); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .plugin-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .steps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav {
    position: fixed; top: 64px; left: 0; right: 0; z-index: 480;
    flex-direction: column; align-items: flex-start; gap: 2px; padding: 14px;
    background: var(--bg); border-bottom: 1px solid var(--border);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s var(--ease);
  }
  .main-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav .nav-link { width: 100%; padding: 12px 10px; border-radius: 8px; }
  .main-nav .nav-link:hover { background: var(--surface); }
  .nav-toggle { display: flex; }

  .contact-box { flex-direction: column; align-items: flex-start; padding: 34px 26px; }
  .stack-grid { grid-template-columns: 1fr 1fr; }
  .cursor-glow { display: none; }
  .card-foot-row { flex-direction: column; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
}