/* ============================================================
   QAlchemy Marketing Site — Design System
   Premium SaaS aesthetic (Linear / Raycast / Supabase inspired)
   ============================================================ */

:root{
  /* ---- Light theme (default) ---- */
  --bg: #ffffff;
  --bg-subtle: #f6f8fc;
  --bg-inverted: #0b0e17;
  --surface: rgba(255,255,255,0.68);
  --surface-solid: #ffffff;
  --border: rgba(15,23,42,0.09);
  --border-strong: rgba(15,23,42,0.14);
  --fg: #0f1524;
  --fg-muted: #5b6478;
  --fg-faint: #8892a4;

  --primary: oklch(0.546 0.215 262.9);
  --primary-dark: oklch(0.44 0.19 262.9);
  --primary-light: oklch(0.9 0.045 258);
  --primary-tint: oklch(0.965 0.015 258);

  --accent-violet: oklch(0.6 0.19 300);
  --danger: oklch(0.577 0.245 27.325);
  --success: oklch(0.63 0.16 148);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,0.05);
  --shadow-md: 0 12px 28px -10px rgba(15,23,42,0.14), 0 2px 8px -2px rgba(15,23,42,0.06);
  --shadow-lg: 0 32px 64px -16px rgba(15,23,42,0.20), 0 8px 24px -6px rgba(15,23,42,0.10);
  --shadow-glow: 0 0 0 1px oklch(0.546 0.215 262.9 / 0.14), 0 16px 40px -12px oklch(0.546 0.215 262.9 / 0.35);

  --glass-bg: rgba(255,255,255,0.62);
  --glass-border: rgba(255,255,255,0.55);
  --glass-blur: 18px;

  --font-display: 'Sora', 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, "SFMono-Regular", Menlo, monospace;

  --max: 1240px;
  --nav-h: 72px;

  color-scheme: light;
}

:root[data-theme="dark"]{
  --bg: #0b0e17;
  --bg-subtle: #10141f;
  --bg-inverted: #ffffff;
  --surface: rgba(255,255,255,0.04);
  --surface-solid: #12172422;
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);
  --fg: #f2f4f9;
  --fg-muted: #a3aec4;
  --fg-faint: #6b7690;

  --primary: oklch(0.72 0.17 262.9);
  --primary-dark: oklch(0.6 0.19 262.9);
  --primary-light: oklch(0.3 0.07 262);
  --primary-tint: oklch(0.24 0.045 262);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 12px 28px -10px rgba(0,0,0,0.55);
  --shadow-lg: 0 32px 64px -16px rgba(0,0,0,0.65);
  --shadow-glow: 0 0 0 1px oklch(0.72 0.17 262.9 / 0.22), 0 16px 40px -12px oklch(0.72 0.17 262.9 / 0.45);

  --glass-bg: rgba(18,22,32,0.55);
  --glass-border: rgba(255,255,255,0.08);

  color-scheme: dark;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg: #0b0e17;
    --bg-subtle: #10141f;
    --bg-inverted: #ffffff;
    --surface: rgba(255,255,255,0.04);
    --surface-solid: #12172422;
    --border: rgba(255,255,255,0.09);
    --border-strong: rgba(255,255,255,0.16);
    --fg: #f2f4f9;
    --fg-muted: #a3aec4;
    --fg-faint: #6b7690;

    --primary: oklch(0.72 0.17 262.9);
    --primary-dark: oklch(0.6 0.19 262.9);
    --primary-light: oklch(0.3 0.07 262);
    --primary-tint: oklch(0.24 0.045 262);

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-md: 0 12px 28px -10px rgba(0,0,0,0.55);
    --shadow-lg: 0 32px 64px -16px rgba(0,0,0,0.65);
    --shadow-glow: 0 0 0 1px oklch(0.72 0.17 262.9 / 0.22), 0 16px 40px -12px oklch(0.72 0.17 262.9 / 0.45);

    --glass-bg: rgba(18,22,32,0.55);
    --glass-border: rgba(255,255,255,0.08);
    color-scheme: dark;
  }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .25s ease, color .25s ease;
  animation: page-fade-in .25s ease;
}
@keyframes page-fade-in{ from{ opacity:0; } to{ opacity:1; } }
@media (prefers-reduced-motion: reduce){
  body{ animation: none; }
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
::selection{ background: var(--primary-light); color: var(--fg); }
h1,h2,h3,h4{ font-family: var(--font-display); letter-spacing: -0.02em; margin: 0; }
p{ margin: 0; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }

.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.mono{ font-family: var(--font-mono); }

/* Fade/slide-in on scroll */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity .6s cubic-bezier(.2,.7,.2,1), transform .6s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
  html{ scroll-behavior: auto; }
}

/* ---------------- Nav ---------------- */
.site-nav{
  position: sticky; top: 0; z-index: 200;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border);
}
.site-nav .wrap{ display:flex; align-items:center; justify-content:space-between; width:100%; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.05rem; font-family: var(--font-display); }
.brand img{ height:28px; width:28px; border-radius:8px; }
.nav-links{ display:flex; align-items:center; gap:6px; }
.nav-links a{
  font-size:0.92rem; font-weight:500; color: var(--fg-muted); padding: 8px 14px; border-radius: 999px;
  transition: color .15s ease, background .15s ease;
}
.nav-links a:hover{ color: var(--fg); background: var(--surface); }
.nav-links a.active{ color: var(--primary); background: var(--primary-tint); }
.nav-right{ display:flex; align-items:center; gap:10px; }
.nav-right .btn{ padding: 9px 18px; font-size:0.86rem; border-radius:10px; height:38px; }
.nav-toggle{
  display:none; width:38px; height:38px; border-radius:10px; border:1px solid var(--border);
  background: var(--surface); align-items:center; justify-content:center; cursor:pointer; color: var(--fg); flex:none;
}
.nav-toggle svg{ width:18px; height:18px; }
a.mobile-cta{ display:none; }

.theme-btn{
  width:38px; height:38px; border-radius:10px; border:1px solid var(--border); background: var(--surface);
  display:flex; align-items:center; justify-content:center; cursor:pointer; color: var(--fg);
  transition: border-color .15s ease, transform .15s ease;
}
.theme-btn:hover{ border-color: var(--primary); }
.theme-btn svg{ width:17px; height:17px; }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 12px 22px; border-radius: 12px; font-weight:600; font-size:0.95rem;
  border:1px solid transparent; cursor:pointer; white-space:nowrap;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:active{ transform: scale(0.97); }
.btn-primary{ background: var(--primary); color:white; box-shadow: var(--shadow-glow); }
.btn-primary:hover{ background: var(--primary-dark); transform: translateY(-1px); }
.btn-ghost{ background: var(--surface); color: var(--fg); border-color: var(--border); }
.btn-ghost:hover{ border-color: var(--primary); color: var(--primary); }
.btn-lg{ padding: 15px 28px; font-size:1.02rem; border-radius:14px; }
.btn svg{ width:16px; height:16px; flex:none; }

/* ---------------- Hero ---------------- */
.hero{
  position: relative; overflow: hidden;
  min-height: calc(100vh - var(--nav-h)); min-height: calc(100svh - var(--nav-h));
  display:flex; align-items:center;
  padding: 24px 0 48px;
}
.hero::before{
  content:""; position:absolute; inset: -30% -10% auto -10%; height: 780px;
  background: radial-gradient(60% 60% at 50% 25%, var(--primary-light) 0%, transparent 72%);
  opacity: .65; z-index:-1; filter: blur(6px);
}
.hero::after{
  content:""; position:absolute; inset:0; z-index:-1;
  background-image: radial-gradient(var(--border-strong) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 15%, black 0%, transparent 75%);
  mask-image: radial-gradient(70% 60% at 50% 15%, black 0%, transparent 75%);
  opacity:.6;
}
.hero-grid{ display:grid; grid-template-columns: 42fr 58fr; gap:52px; align-items:center; }
.hero-copy{ max-width: 500px; }
.badge{
  display:inline-flex; align-items:center; gap:8px; padding:7px 16px;
  border:1px solid var(--border); border-radius:999px; font-size:0.82rem; font-weight:600;
  color: var(--primary); background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-sm);
}
.badge .dot{ position:relative; width:6px; height:6px; border-radius:50%; background: var(--success); flex:none; }
.badge .dot::before{
  content:""; position:absolute; inset:0; border-radius:50%; background: var(--success);
  animation: dot-ping 1.8s cubic-bezier(0,0,.2,1) infinite;
}
@keyframes dot-ping{
  0%{ transform: scale(1); opacity:0.7; }
  75%, 100%{ transform: scale(3.2); opacity:0; }
}
@media (prefers-reduced-motion: reduce){
  .badge .dot::before{ animation:none; }
}
.hero h1{
  margin-top:26px; font-size: clamp(2.2rem, 3.6vw, 3.4rem); font-weight:700; line-height:1.1;
}
.hero h1 .grad{
  background: linear-gradient(100deg, var(--primary) 15%, var(--accent-violet) 90%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lead{ margin-top:22px; font-size:1.12rem; color: var(--fg-muted); }
.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-note{ margin-top:20px; font-size:0.85rem; color: var(--fg-faint); font-weight:500; }

.hero-visual{ position: relative; padding: 0 24px; }
@media (max-width: 980px){
  .hero{ min-height:auto; padding-top: 32px; }
  .hero-grid{ grid-template-columns: 1fr; text-align:center; }
  .hero-copy{ max-width: 640px; margin: 0 auto; }
  .hero-actions{ justify-content:center; }
  .hero-visual{ margin-top: 56px; }
}
.hero-stack{ position:relative; animation: hero-shot-float 7s ease-in-out infinite; }
@keyframes hero-shot-float{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-14px); } }
@media (prefers-reduced-motion: reduce){ .hero-stack{ animation: none; } }

.hero-shot-main{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--border);
  box-shadow: var(--shadow-lg); background: var(--surface-solid); position:relative; z-index:3;
}
.hero-shot-main .browserbar{
  display:flex; align-items:center; gap:8px; padding:12px 16px; border-bottom:1px solid var(--border);
  background: var(--bg-subtle);
}
.hero-shot-main .dots{ display:flex; gap:6px; }
.hero-shot-main .dots span{ width:10px; height:10px; border-radius:50%; background: var(--border-strong); }
.hero-shot-main .dots span:nth-child(1){ background: oklch(0.68 0.19 25); }
.hero-shot-main .dots span:nth-child(2){ background: oklch(0.8 0.16 90); }
.hero-shot-main .dots span:nth-child(3){ background: oklch(0.72 0.17 148); }
.hero-shot-main .urlbar{ flex:1; text-align:center; font-size:0.78rem; color: var(--fg-faint); font-family: var(--font-mono); }
.hero-shot-main img{ width:100%; display:block; aspect-ratio: 1600 / 1000; object-fit: cover; background: var(--bg-subtle); }

.stack-shot{
  position:absolute; inset:0; border-radius: var(--radius-lg); overflow:hidden;
  border:1px solid var(--border); box-shadow: var(--shadow-md); background: var(--surface-solid);
}
.stack-shot img{ width:100%; height:100%; display:block; aspect-ratio: 1600 / 1000; object-fit: cover; object-position: top; background: var(--bg-subtle); }
.stack-back-1{ z-index:2; transform: translate(16px, 16px) rotate(2.5deg) scale(0.98); opacity:.85; }
.stack-back-2{ z-index:1; transform: translate(32px, 32px) rotate(5deg) scale(0.96); opacity:.6; }
@media (max-width: 640px){
  .stack-back-1{ transform: translate(10px, 10px) rotate(2deg) scale(0.98); }
  .stack-back-2{ transform: translate(20px, 20px) rotate(4deg) scale(0.96); }
}

/* ---------------- Sections ---------------- */
section{ padding: 108px 0; }
.section-head{ max-width: 700px; margin: 0 auto 56px; text-align:center; }
.section-head .kicker{
  color: var(--primary); font-weight:700; font-size:0.8rem; letter-spacing:.08em; text-transform:uppercase;
  display:block; margin-bottom:14px;
}
.section-head h2{ font-size: clamp(1.9rem, 3.6vw, 2.7rem); font-weight:700; }
.section-head p{ margin-top:16px; color: var(--fg-muted); font-size:1.06rem; }

/* ---------------- Providers strip ---------------- */
.providers-strip{ padding: 56px 0; border-top:1px solid var(--border); border-bottom:1px solid var(--border); background: var(--bg-subtle); }
.providers-strip p{ text-align:center; color: var(--fg-muted); font-size:0.92rem; margin-bottom: 34px; font-weight:500; }
.provider-row{ display:flex; align-items:center; justify-content:center; gap:56px; flex-wrap:wrap; }
.provider-chip{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.05rem; color: var(--fg-muted); opacity:.85; transition: opacity .2s ease, color .2s ease; }
.provider-chip:hover{ opacity:1; color: var(--fg); }
.provider-chip svg{ width:26px; height:26px; }

/* ---------------- Showcase ---------------- */
.showcase-row{
  display:grid; grid-template-columns: 1fr 1fr; gap:72px; align-items:center; padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.showcase-row:last-child{ border-bottom:none; }
.showcase-row.reverse .showcase-text{ order:2; }
.showcase-row.reverse .showcase-media{ order:1; }
.showcase-text .kicker{ color: var(--primary); font-weight:700; font-size:0.78rem; letter-spacing:.08em; text-transform:uppercase; display:block; margin-bottom:12px; }
.showcase-text h3{ font-size:1.8rem; font-weight:700; margin-bottom:16px; }
.showcase-text p{ color: var(--fg-muted); font-size:1.03rem; margin-bottom:20px; }
.showcase-list{ display:flex; flex-direction:column; gap:11px; }
.showcase-list li{ display:flex; gap:10px; align-items:flex-start; font-size:0.95rem; }
.showcase-list svg{ width:18px; height:18px; color: var(--primary); flex:none; margin-top:2px; }
.showcase-media{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--border); box-shadow: var(--shadow-lg);
  background: var(--surface-solid); transition: transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s ease;
}
.showcase-media:hover{ transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.showcase-media img{ width:100%; display:block; aspect-ratio: 1600 / 1000; object-fit: cover; background: var(--bg-subtle); }

/* ---------------- Feature cards (Why QAlchemy) ---------------- */
.card-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:22px; }
.feature-card{
  background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur));
  border:1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 30px; box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card:hover{ transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.feature-icon{
  width:46px; height:46px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  background: var(--primary-tint); color: var(--primary); margin-bottom:18px;
}
.feature-icon svg{ width:22px; height:22px; }
.feature-card h3{ font-size:1.1rem; font-weight:700; margin-bottom:8px; }
.feature-card p{ color: var(--fg-muted); font-size:0.94rem; }

/* ---------------- Export formats ---------------- */
.export-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:18px; }
.export-card{
  display:flex; flex-direction:column; align-items:center; gap:12px; text-align:center;
  padding: 26px 16px; border:1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.export-card:hover{ transform: translateY(-4px); border-color: var(--primary-light); box-shadow: var(--shadow-md); }
.export-card .ico{ width:40px; height:40px; border-radius:10px; background: var(--primary-tint); color: var(--primary); display:flex; align-items:center; justify-content:center; }
.export-card .ico svg{ width:20px; height:20px; }
.export-card span{ font-weight:600; font-size:0.9rem; }

/* ---------------- Steps ---------------- */
.steps{ display:grid; grid-template-columns: repeat(4, 1fr); gap:24px; position:relative; }
.step{ position:relative; padding: 30px 24px; border:1px solid var(--border); border-radius: var(--radius-lg); background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); }
.step .num{
  width:38px; height:38px; border-radius:10px; background: var(--primary); color:white; font-weight:700;
  display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:1rem; box-shadow: var(--shadow-glow);
}
.step h4{ font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.step p{ color: var(--fg-muted); font-size:0.9rem; }

/* ---------------- Final CTA ---------------- */
.cta-band{
  border-radius: var(--radius-xl); padding: 76px 48px; text-align:center; position:relative; overflow:hidden;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-violet) 100%); color:white;
}
.cta-band::before{
  content:""; position:absolute; inset:0; background: radial-gradient(60% 100% at 50% 0%, rgba(255,255,255,.18), transparent 60%);
}
.cta-band h2{ font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight:700; position:relative; }
.cta-band p{ margin-top:14px; opacity:.92; font-size:1.05rem; position:relative; max-width:560px; margin-left:auto; margin-right:auto; }
.cta-band .hero-actions{ justify-content:center; margin-top:30px; position:relative; }
.cta-band .btn-primary{ background:white; color: var(--primary-dark); box-shadow: var(--shadow-md); }
.cta-band .btn-primary:hover{ background: #f3f5ff; }
.cta-band .btn-ghost{ border-color: rgba(255,255,255,0.45); color:white; background: rgba(255,255,255,0.08); }
.cta-band .btn-ghost:hover{ background: rgba(255,255,255,0.18); }

/* ---------------- Footer ---------------- */
footer{ border-top:1px solid var(--border); padding: 56px 0 32px; background: var(--bg-subtle); }
.foot-grid{ display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap:32px; }
.foot-col h5{ font-size:0.82rem; font-weight:700; margin-bottom:14px; color: var(--fg-faint); text-transform:uppercase; letter-spacing:.05em; }
.foot-col ul{ display:flex; flex-direction:column; gap:10px; }
.foot-col a{ color: var(--fg-muted); font-size:0.9rem; }
.foot-col a:hover{ color: var(--primary); }
.foot-bottom{
  margin-top:48px; padding-top:24px; border-top:1px solid var(--border);
  display:flex; justify-content:center; text-align:center; flex-wrap:wrap; gap:12px; color: var(--fg-faint); font-size:0.83rem;
}

/* ---------------- Back to top ---------------- */
.back-to-top{
  position:fixed; right:24px; bottom:24px; z-index:250;
  width:46px; height:46px; border-radius:50%; border:1px solid var(--border);
  background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur));
  color: var(--fg); box-shadow: var(--shadow-md); cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s, border-color .15s ease;
}
.back-to-top.is-visible{ opacity:1; visibility:visible; transform: translateY(0); }
.back-to-top:hover{ border-color: var(--primary); color: var(--primary); }
.back-to-top svg{ width:20px; height:20px; }
@media (prefers-reduced-motion: reduce){ .back-to-top{ transition:none; } }
@media (max-width: 760px){
  .back-to-top{ right:16px; bottom:16px; width:42px; height:42px; }
}

/* ---------------- Page header (inner pages) ---------------- */
.page-header{ padding: 96px 0 48px; text-align:center; border-bottom:1px solid var(--border); }
.page-header .kicker{ color: var(--primary); font-weight:700; font-size:0.8rem; letter-spacing:.08em; text-transform:uppercase; display:block; margin-bottom:14px; }
.page-header h1{ font-size: clamp(2rem, 4vw, 3rem); font-weight:700; }
.page-header p{ margin-top:16px; color: var(--fg-muted); font-size:1.06rem; max-width:640px; margin-left:auto; margin-right:auto; }

/* ---------------- Gallery (gallery.html) ---------------- */
.gallery-grid{ display:grid; grid-template-columns: 1fr; gap:88px; }
.gallery-item{ display:grid; grid-template-columns: 1fr 1.5fr; gap:48px; align-items:center; }
.gallery-item.reverse{ direction: rtl; }
.gallery-item.reverse > *{ direction: ltr; }
.gallery-caption .kicker{ color: var(--primary); font-weight:700; font-size:0.78rem; letter-spacing:.08em; text-transform:uppercase; display:block; margin-bottom:10px; }
.gallery-caption h3{ font-size:1.5rem; font-weight:700; margin-bottom:14px; }
.gallery-caption p{ color: var(--fg-muted); font-size:0.98rem; margin-bottom:16px; }
.gallery-caption ul{ display:flex; flex-direction:column; gap:9px; }
.gallery-caption li{ display:flex; gap:9px; align-items:flex-start; font-size:0.92rem; color: var(--fg-muted); }
.gallery-caption li svg{ width:16px; height:16px; color: var(--primary); flex:none; margin-top:3px; }
.gallery-media{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--border); box-shadow: var(--shadow-lg);
  background: var(--surface-solid); transition: transform .3s ease;
}
.gallery-media:hover{ transform: scale(1.015); }
.gallery-media img{ width:100%; display:block; aspect-ratio: 1600 / 1000; object-fit: cover; background: var(--bg-subtle); }
@media (max-width: 900px){
  .gallery-item, .gallery-item.reverse{ grid-template-columns: 1fr; direction: ltr; }
}

/* ---------------- Docs page ---------------- */
.docs-shell{ display:grid; grid-template-columns: 250px 1fr; gap:52px; align-items:start; padding-top:64px; padding-bottom:120px; }
.docs-toc{ position: sticky; top: calc(var(--nav-h) + 20px); display:flex; flex-direction:column; gap:4px; max-height: calc(100vh - 120px); overflow-y:auto; padding-right:8px; }
.docs-search{
  position:relative; display:flex; align-items:center; margin-bottom:14px;
}
.docs-search svg{
  position:absolute; left:12px; width:16px; height:16px; color: var(--fg-faint); pointer-events:none;
}
.docs-search input{
  width:100%; padding:9px 12px 9px 36px; font: inherit; font-size:0.88rem;
  color: var(--fg); background: var(--surface); border:1px solid var(--border); border-radius:10px;
  outline:none; transition: border-color .15s ease;
}
.docs-search input:focus{ border-color: var(--primary); }
.docs-search input::placeholder{ color: var(--fg-faint); }
.docs-search-count{ font-size:0.8rem; color: var(--fg-faint); margin:0 0 8px 2px; }
.docs-no-results{
  color: var(--fg-muted); padding:32px 0; font-size:0.98rem;
}
mark.docs-hit{ background: var(--primary-tint); color: var(--primary); border-radius:3px; padding:0 2px; }
.docs-toc .toc-title{ font-size:0.74rem; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color: var(--fg-faint); margin:16px 0 6px; }
.docs-toc .toc-title:first-child{ margin-top:0; }
.docs-toc a{ font-size:0.88rem; color: var(--fg-muted); padding:7px 11px; border-radius:9px; border-left:2px solid transparent; }
.docs-toc a:hover{ color: var(--fg); background: var(--surface); }
.docs-toc a.active{ color: var(--primary); border-left-color: var(--primary); background: var(--primary-tint); font-weight:600; }

.docs-content article{ margin-bottom:68px; scroll-margin-top: calc(var(--nav-h) + 20px); }
.docs-content h2{ font-size:1.75rem; font-weight:700; margin-bottom:10px; display:flex; align-items:center; gap:13px; }
.docs-content h2 .docs-icon{ width:38px; height:38px; border-radius:10px; background: var(--primary-tint); color: var(--primary); display:flex; align-items:center; justify-content:center; flex:none; }
.docs-content h2 .docs-icon svg{ width:19px; height:19px; }
.docs-content .docs-sub{ color: var(--fg-muted); margin-bottom:26px; font-size:1.02rem; max-width:660px; }
.docs-content h3{ font-size:1.12rem; font-weight:700; margin:30px 0 12px; }
.docs-content p{ color: var(--fg-muted); margin-bottom:13px; max-width:720px; }
.docs-content ol, .docs-content ul{ margin:0 0 18px 22px; color: var(--fg-muted); max-width:720px; list-style:disc; }
.docs-content ol{ list-style:decimal; }
.docs-content li{ margin-bottom:9px; }
.docs-content li strong{ color: var(--fg); }
.docs-media{ border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--border); box-shadow: var(--shadow-md); margin:22px 0 30px; max-width:840px; background: var(--surface-solid); }
.docs-media img{ width:100%; display:block; aspect-ratio: 1600 / 1000; object-fit: cover; background: var(--bg-subtle); }
.docs-callout{
  display:flex; gap:13px; background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur));
  border:1px solid var(--border); border-left:3px solid var(--primary);
  padding:15px 18px; border-radius:12px; margin:20px 0; max-width:720px; font-size:0.92rem; color: var(--fg-muted);
}
.docs-callout svg{ width:19px; height:19px; color: var(--primary); flex:none; margin-top:2px; }
@media (max-width: 980px){
  .docs-shell{ grid-template-columns: 1fr; }
  .docs-toc{ position:relative; top:0; max-height:none; flex-direction:row; flex-wrap:wrap; margin-bottom:32px; }
  .docs-search{ width:100%; margin-bottom:6px; }
  .docs-toc .toc-title{ width:100%; margin:6px 0 0; }
}

/* ---------------- Changelog ---------------- */
.changelog-list{ display:flex; flex-direction:column; gap:0; max-width: 820px; margin: 0 auto; padding: 72px 0 120px; }
.release{ position:relative; padding: 0 0 56px 40px; border-left: 2px solid var(--border); }
.release:last-child{ border-left-color: transparent; padding-bottom:0; }
.release::before{
  content:""; position:absolute; left:-7px; top:2px; width:12px; height:12px; border-radius:50%;
  background: var(--primary); box-shadow: 0 0 0 4px var(--primary-tint);
}
.release-head{ display:flex; align-items:baseline; gap:14px; margin-bottom:14px; flex-wrap:wrap; }
.release-version{ font-family: var(--font-display); font-size:1.4rem; font-weight:700; }
.release-date{ color: var(--fg-faint); font-size:0.86rem; font-weight:500; }
.release-badge{ font-size:0.72rem; font-weight:700; padding:3px 10px; border-radius:999px; background: var(--primary-tint); color: var(--primary); text-transform:uppercase; letter-spacing:.04em; }
.release ul{ display:flex; flex-direction:column; gap:10px; }
.release li{ display:flex; gap:10px; align-items:flex-start; font-size:0.96rem; color: var(--fg-muted); }
.release li svg{ width:17px; height:17px; color: var(--primary); flex:none; margin-top:3px; }

/* ---------------- Preflight row (Downloads) ---------------- */
.preflight-row{ display:flex; gap:16px; align-items:stretch; max-width:920px; margin:24px auto 0; }
.preflight-row > a{ flex:1; }
@media (max-width: 800px){
  .preflight-row{ flex-direction:column; max-width:560px; }
}

/* ---------------- VirusTotal badge (Downloads) ---------------- */
.vt-badge{
  display:flex; align-items:flex-start; gap:12px; padding:14px 18px; border-radius: var(--radius);
  background: color-mix(in oklch, var(--success) 10%, var(--bg-subtle));
  border:1px solid color-mix(in oklch, var(--success) 30%, var(--border));
  font-size:0.88rem; color: var(--fg-muted); transition: border-color .2s ease, transform .2s ease;
}
.vt-badge:hover{ transform: translateY(-2px); border-color: var(--success); }
.vt-icon{ width:22px; height:22px; flex:none; color: var(--success); margin-top:1px; }
.vt-icon svg{ width:100%; height:100%; }
.vt-text{ display:flex; flex-direction:column; gap:3px; }
.vt-text strong{ color: var(--fg); }
.vt-sub{ font-size:0.8rem; color: var(--fg-faint); }

/* ---------------- Preflight SmartScreen note (Downloads) ---------------- */
.preflight-note{
  display:flex; align-items:flex-start; gap:12px; padding:14px 18px; border-radius: var(--radius);
  background: color-mix(in oklch, oklch(0.8 0.16 90) 14%, var(--bg-subtle));
  border:1px solid color-mix(in oklch, oklch(0.8 0.16 90) 35%, var(--border));
  font-size:0.88rem; color: var(--fg-muted); transition: border-color .2s ease, transform .2s ease;
}
.preflight-note:hover{ transform: translateY(-2px); border-color: oklch(0.8 0.16 90); }
.preflight-note strong{ color: var(--fg); }
.preflight-icon{ width:22px; height:22px; flex:none; color: oklch(0.6 0.16 70); margin-top:1px; overflow:visible; }
.preflight-icon svg{ width:100%; height:100%; overflow:visible; }

/* ---------------- Downloads page grids ---------------- */
.export-grid.export-grid-pair{ grid-template-columns: repeat(2, minmax(0,1fr)); max-width:760px; margin:0 auto; }
.steps.steps-three{ grid-template-columns: repeat(3, 1fr); max-width:900px; margin:0 auto; }
@media (max-width: 640px){
  .export-grid.export-grid-pair{ grid-template-columns: 1fr; max-width:420px; }
  .steps.steps-three{ grid-template-columns: 1fr; max-width:420px; }
}

/* ---------------- SmartScreen mockup (Downloads) ---------------- */
.smartscreen-mock{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--border-strong);
  box-shadow: var(--shadow-lg); background: #f3f3f3; font-family: 'Segoe UI', var(--font-sans);
}
.ss-titlebar{
  display:flex; align-items:center; gap:12px; padding:20px 24px; background:#0d47a1; color:#fff;
  font-size:1.1rem; font-weight:600;
}
.ss-shield{ width:32px; height:32px; flex:none; color:#ffd54a; }
.ss-shield svg{ width:100%; height:100%; }
.ss-body{ padding:20px 24px; color:#1a1a1a; }
.ss-body p{ font-size:0.92rem; line-height:1.6; margin-bottom:16px; color:#333; }
.ss-appinfo{ font-size:0.85rem; color:#444; line-height:1.7; }
.ss-label{ color:#777; }
.ss-actions{ display:flex; justify-content:space-between; align-items:center; padding:16px 24px 22px; }
.ss-link{ color:#0d47a1; font-size:0.9rem; font-weight:600; text-decoration:underline; cursor:default; }
.ss-btn{
  display:inline-flex; align-items:center; justify-content:center; padding:9px 22px; border-radius:2px;
  background:#e0e0e0; color:#1a1a1a; font-size:0.88rem; font-weight:600; cursor:default;
}
:root[data-theme="dark"] .smartscreen-mock{ background:#2b2b2b; }
:root[data-theme="dark"] .ss-body{ color:#e8e8e8; }
:root[data-theme="dark"] .ss-body p{ color:#d0d0d0; }
:root[data-theme="dark"] .ss-appinfo{ color:#ccc; }
:root[data-theme="dark"] .ss-btn{ background:#454545; color:#f0f0f0; }
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .smartscreen-mock{ background:#2b2b2b; }
  :root:not([data-theme="light"]) .ss-body{ color:#e8e8e8; }
  :root:not([data-theme="light"]) .ss-body p{ color:#d0d0d0; }
  :root:not([data-theme="light"]) .ss-appinfo{ color:#ccc; }
  :root:not([data-theme="light"]) .ss-btn{ background:#454545; color:#f0f0f0; }
}

/* ---------------- Creator card (About / Support) ---------------- */
.creator-card{
  display:flex; align-items:center; gap:18px; max-width:480px; margin:0 auto;
  padding:18px 22px; border-radius: var(--radius-lg);
  background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur));
  border:1px solid var(--glass-border); box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.creator-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.creator-avatar{ width:56px; height:56px; border-radius:50%; object-fit:cover; flex:none; border:1px solid var(--border); }
.creator-text{ display:flex; flex-direction:column; gap:3px; min-width:0; flex:1; }
.creator-name{ font-weight:700; font-size:1rem; color: var(--fg); }
.creator-role{ font-size:0.85rem; color: var(--fg-muted); }
.creator-arrow{ width:18px; height:18px; color: var(--fg-faint); flex:none; }

/* ---------------- Privacy / legal ---------------- */
.legal{ max-width: 760px; margin: 0 auto; padding: 72px 0 120px; }
.legal h2{ font-size:1.15rem; font-weight:700; margin:34px 0 12px; }
.legal p, .legal li{ color: var(--fg-muted); margin-bottom:12px; }
.legal ul{ margin:0 0 16px 20px; list-style:disc; }
.legal strong{ color: var(--fg); }

@media (max-width: 980px){
  .card-grid{ grid-template-columns: repeat(2,1fr); }
  .export-grid{ grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 760px){
  .nav-toggle{ display:flex; }
  .nav-right > a.btn-primary{ display:none; }
  .nav-links{
    display:none; position:absolute; top:var(--nav-h); left:0; right:0; z-index:150;
    flex-direction:column; align-items:stretch; gap:2px;
    background: var(--bg); border-bottom:1px solid var(--border); padding:12px 20px 20px; box-shadow: var(--shadow-lg);
    overflow:hidden; max-height:calc(100vh - var(--nav-h)); overflow-y:auto;
  }
  .nav-links.is-open{ display:flex; }
  .nav-links a{ padding:12px 14px; border-radius:10px; font-size:0.98rem; }
  .nav-links a.mobile-cta{ display:flex; justify-content:center; margin-top:10px; color:white; }
  .showcase-row{ grid-template-columns: 1fr; gap:32px; }
  .showcase-row.reverse .showcase-text{ order:1; }
  .showcase-row.reverse .showcase-media{ order:2; }
  .card-grid{ grid-template-columns: 1fr; }
  .export-grid{ grid-template-columns: repeat(2,1fr); }
  .steps{ grid-template-columns: 1fr 1fr; }
  .foot-grid{ grid-template-columns: 1fr 1fr; }
  .cta-band{ padding: 52px 24px; }
  section{ padding: 76px 0; }
  .provider-row{ gap:32px; }
}
@media (max-width: 480px){
  .steps{ grid-template-columns: 1fr; }
  .foot-grid{ grid-template-columns: 1fr; }
}
@media (max-width: 640px){
  .foot-grid{ gap:0; }
  .foot-col{ border-bottom:1px solid var(--border); }
  .foot-col:first-child{ border-bottom:none; padding-bottom:20px; }
  .foot-col h5{
    display:flex; align-items:center; justify-content:space-between; cursor:pointer;
    margin:0; padding:16px 2px; user-select:none;
  }
  .foot-col h5::after{
    content:'+'; font-size:1.1rem; font-weight:400; color: var(--fg-faint); transition: transform .2s ease;
  }
  .foot-col.is-open h5::after{ transform: rotate(45deg); }
  .foot-col ul{
    max-height:0; overflow:hidden; gap:0;
    transition: max-height .25s ease, padding .25s ease;
  }
  .foot-col.is-open ul{ max-height:240px; padding-bottom:16px; gap:10px; }
  .foot-col:first-child h5{ display:none; }
  .foot-bottom{ margin-top:20px; padding-top:20px; border-top:none; }
}