/* vtoku.cam — Liquid Glass / glassmorphism. Frosted translucent panels over a soft mesh gradient.
   Tokens mirror DESIGN.md. */

:root {
  --text: #1A1726;
  --text-dim: #4C4860;
  --text-faint: #797490;
  --accent: #6C5CE7;
  --accent-bright: #5B49E0;
  --accent-deep: #4226A8;
  --accent-soft: rgba(108, 92, 231, .14);
  --good: #15824B;
  --warn: #9A5B00;

  /* glass */
  --glass: rgba(255, 255, 255, .42);
  --glass-strong: rgba(255, 255, 255, .60);
  --glass-edge: rgba(255, 255, 255, .75);
  --glass-border: rgba(255, 255, 255, .55);
  --hairline: rgba(60, 40, 120, .12);
  --blur: saturate(180%) blur(22px);

  --maxw: 1100px;
  --readw: 760px;
  --radius: 24px;
  --radius-sm: 14px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Menlo", monospace;

  --shadow-glass: 0 10px 40px rgba(70, 50, 140, .16), inset 0 1px 0 var(--glass-edge), inset 0 0 0 1px rgba(255,255,255,.10);
  --shadow-soft: 0 6px 24px rgba(70, 50, 140, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.62;
  letter-spacing: -.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  background:
    radial-gradient(40% 38% at 12% 8%,  rgba(173, 150, 255, .55), transparent 60%),
    radial-gradient(42% 40% at 88% 6%,  rgba(150, 190, 255, .50), transparent 60%),
    radial-gradient(46% 44% at 82% 72%, rgba(255, 168, 224, .42), transparent 60%),
    radial-gradient(46% 42% at 14% 88%, rgba(150, 224, 255, .42), transparent 60%),
    linear-gradient(160deg, #F3EEFF 0%, #EEF3FF 50%, #FCEFF7 100%);
  background-attachment: fixed;
}

a { color: var(--accent-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { letter-spacing: -.026em; line-height: 1.07; font-weight: 700; color: var(--text); }
h1 { font-size: clamp(2.6rem, 7vw, 4.6rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); margin-top: 0; }
h3 { font-size: 1.2rem; font-weight: 600; letter-spacing: -.015em; }

code, kbd {
  font-family: var(--mono); font-size: .88em;
  background: rgba(255,255,255,.5); border: 1px solid var(--glass-border);
  border-radius: 6px; padding: .08em .42em; color: var(--accent-deep);
}
::selection { background: rgba(108, 92, 231, .22); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- layout ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: 72px 0; }

/* ---------- glass primitive ---------- */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .45);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 0 rgba(255,255,255,.4);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); letter-spacing: -.02em; font-size: 1.04rem; }
.brand:hover { text-decoration: none; }
.brand img { height: 28px; width: 28px; border-radius: 8px; display: block; box-shadow: var(--shadow-soft); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: .94rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 680px) { .nav-links { gap: 16px; } .nav-links a.hide-sm { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .25s ease, background .2s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: linear-gradient(180deg, #7E6BF2, #5B49E0); color: #fff; box-shadow: 0 10px 28px rgba(108,92,231,.40), inset 0 1px 0 rgba(255,255,255,.35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 36px rgba(108,92,231,.52), inset 0 1px 0 rgba(255,255,255,.45); }
.btn-ghost {
  background: var(--glass-strong); color: var(--accent-deep); border-color: var(--glass-border);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: inset 0 1px 0 var(--glass-edge);
}
.btn-ghost:hover { color: var(--accent-deep); transform: translateY(-1px); background: rgba(255,255,255,.72); }
.badge-link { display: inline-block; transition: transform .15s ease; }
.badge-link:hover { transform: translateY(-1px); }
.badge-link img { height: 54px; width: auto; border-radius: 11px; box-shadow: var(--shadow-soft); }

/* ---------- hero ---------- */
.hero { position: relative; text-align: center; padding: 104px 0 88px; }
.hero-icon { width: 100px; height: 100px; border-radius: 23px; box-shadow: 0 18px 50px rgba(70,50,140,.32); margin: 0 auto 28px; display: block; }
.hero .eyebrow { display: inline-block; color: var(--accent-deep); font-weight: 600; letter-spacing: .04em; font-size: .82rem; text-transform: uppercase;
  background: var(--glass-strong); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border); border-radius: 999px; padding: 6px 14px; box-shadow: inset 0 1px 0 var(--glass-edge); }
.hero h1 { margin: 22px 0 0; }
.hero .vrl { background: linear-gradient(120deg, #7C5CFF, #B05CFF 55%, #FF7AC8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lede { color: var(--text-dim); font-size: 1.3rem; max-width: 660px; margin: 22px auto 34px; line-height: 1.5; letter-spacing: -.012em; }
.hero-cta { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; }

/* ---------- feature grid ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-glass);
  transition: transform .2s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 52px rgba(70,50,140,.22), inset 0 1px 0 var(--glass-edge); }
.card h3 { margin: 0 0 8px; }
.card p { color: var(--text-dim); margin: 0; font-size: .98rem; }
.card .icon {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(160deg, rgba(140,120,255,.95), rgba(91,73,224,.95)); color: #fff; margin-bottom: 16px;
  box-shadow: 0 8px 18px rgba(108,92,231,.36), inset 0 1px 0 rgba(255,255,255,.4);
}
.card .icon svg { width: 24px; height: 24px; }
.card.feature-wide { grid-column: 1 / -1; }

a.card { color: inherit; display: block; }
a.card:hover { text-decoration: none; }
a.card:hover h3 { color: var(--accent-deep); }

/* ---------- section heading ---------- */
.section-head { text-align: center; margin-bottom: 44px; }
.section-head p { color: var(--text-dim); max-width: 600px; margin: 14px auto 0; font-size: 1.1rem; }

/* tinted glass band */
.section-tint { position: relative; }
.section-tint::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(255,255,255,.30);
  -webkit-backdrop-filter: saturate(150%) blur(8px); backdrop-filter: saturate(150%) blur(8px);
  border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border);
}

/* ---------- screenshots ---------- */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px) { .shots { grid-template-columns: repeat(2, 1fr); } }
.shot {
  aspect-ratio: 9 / 19.5; border-radius: 28px;
  background: var(--glass); border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: var(--shadow-glass);
  display: grid; place-items: center; color: var(--text-faint); font-size: .85rem; text-align: center; padding: 16px;
}

/* ---------- reading sheet (legal/docs) ---------- */
.reading {
  max-width: var(--readw);
  width: calc(100% - 36px);
  margin: 36px auto;
  padding: clamp(26px, 4vw, 52px);
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  box-shadow: var(--shadow-glass);
}
.prose { color: var(--text); }
.prose h2 { margin-top: 50px; font-size: 1.65rem; }
.prose h3 { margin-top: 32px; font-size: 1.16rem; }
.prose p, .prose li { color: var(--text-dim); }
.prose strong { color: var(--text); font-weight: 600; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose hr { border: none; border-top: 1px solid var(--hairline); margin: 40px 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.prose th { color: var(--text); font-weight: 600; }
.prose td { color: var(--text-dim); }
.page-head { padding: 8px 0 8px; }
.page-head .eyebrow { color: var(--accent-deep); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.page-head .updated { color: var(--text-faint); font-size: .92rem; margin-top: 10px; }

/* docs hub uses .container (not a sheet) for the card grid */
.dochub { padding-top: 8px; }

/* ---------- callouts ---------- */
.note {
  border: 1px solid var(--glass-border); border-left: 3px solid var(--accent);
  background: rgba(255,255,255,.45); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-radius: var(--radius-sm); padding: 15px 18px; margin: 22px 0; color: var(--text);
}
.note.caution { border-left-color: var(--warn); background: rgba(255, 244, 224, .6); }
.note strong { color: var(--text); }
.note p { margin: 0; color: var(--text-dim); }

/* ---------- breadcrumb ---------- */
.crumb { color: var(--text-faint); font-size: .9rem; margin-bottom: 6px; }
.crumb a { color: var(--text-dim); }

/* ---------- contact embed ---------- */
.embed-frame { width: 100%; min-height: 760px; border: 1px solid var(--glass-border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-soft); }

/* ---------- footer ---------- */
.footer {
  margin-top: 56px; padding: 52px 0 40px;
  background: rgba(255,255,255,.42);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  border-top: 1px solid var(--glass-border);
}
.footer-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer h4 { color: var(--text); font-size: .82rem; font-weight: 600; margin: 0 0 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin: 8px 0; }
.footer a { color: var(--text-dim); font-size: .94rem; }
.footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 38px; padding-top: 24px; border-top: 1px solid var(--glass-border); color: var(--text-faint); font-size: .85rem; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom .legal { color: var(--text-faint); }

/* ---------- misc ---------- */
.fade-in { opacity: 0; transform: translateY(12px); animation: fade .6s ease forwards; }
@keyframes fade { to { opacity: 1; transform: none; } }
.center { text-align: center; }
.muted { color: var(--text-faint); }

/* ---------- hero with mascot (anime) ---------- */
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; text-align: left; }
.hero-copy .eyebrow { margin-bottom: 4px; }
.hero-copy h1 { margin: 18px 0 0; }
.hero-copy p.lede { margin: 20px 0 30px; }
.hero-copy .hero-cta { justify-content: flex-start; }
.hero-note { margin-top: 14px; font-size: .9rem; color: var(--text-faint); }
.hero-art { position: relative; display: grid; place-items: center; min-height: 440px; }
.hero-art .hero-appicon {
  position: relative; z-index: 2; width: min(220px, 58%); aspect-ratio: 1; border-radius: 15%;
  box-shadow: 0 28px 64px rgba(70,50,140,.40), inset 0 0 0 1px rgba(255,255,255,.12);
}
.hero-art .sparkle { position: absolute; z-index: 3; width: 26px; filter: drop-shadow(0 4px 8px rgba(108,92,231,.4)); animation: twinkle 3.2s ease-in-out infinite; }
.hero-art .s1 { top: 8%; left: 12%; width: 34px; animation-delay: .2s; }
.hero-art .s2 { bottom: 14%; right: 10%; width: 24px; animation-delay: 1.1s; }
.hero-art .s3 { top: 24%; right: 16%; width: 18px; animation-delay: 1.9s; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes twinkle { 0%, 100% { transform: scale(.85); opacity: .65; } 50% { transform: scale(1.1); opacity: 1; } }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-copy .hero-cta { justify-content: center; }
  .hero-art { order: -1; min-height: 320px; }
}

/* sparkle accent on section headings */
.section-head h2 { position: relative; display: inline-block; }
.section-head h2::after { content: ""; position: absolute; top: -10px; right: -26px; width: 18px; height: 18px;
  background: url("sparkle.png") center/contain no-repeat; opacity: .9; }

/* ---------- Pro / pricing ---------- */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }
.plan { display: flex; flex-direction: column; }
.plan .price { font-size: 1.5rem; font-weight: 700; color: var(--text); margin: 4px 0 2px; }
.plan .price small { font-size: .92rem; font-weight: 500; color: var(--text-faint); }
.plan ul { list-style: none; padding: 0; margin: 16px 0 22px; }
.plan li { position: relative; padding-left: 26px; margin: 9px 0; color: var(--text-dim); font-size: .97rem; }
.plan li::before { content: ""; position: absolute; left: 0; top: 3px; width: 17px; height: 17px; border-radius: 50%;
  background: var(--accent-soft); }
.plan li::after { content: ""; position: absolute; left: 5px; top: 7px; width: 6px; height: 3.5px;
  border-left: 2px solid var(--accent-deep); border-bottom: 2px solid var(--accent-deep); transform: rotate(-45deg); }
.plan.featured { border-color: rgba(108,92,231,.5); box-shadow: 0 16px 48px rgba(108,92,231,.26), inset 0 1px 0 var(--glass-edge); }
.plan .tag { align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: linear-gradient(180deg, #7E6BF2, #5B49E0); padding: 4px 11px; border-radius: 999px; margin-bottom: 12px; }
.plan .btn { margin-top: auto; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}