* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0b0f17;
  --panel: #0f1524;
  --card: #121a2e;
  --text: #e5ecff;
  --muted: #b7c2e9;
  --accent: #6d5efc;
  --accent-2: #00d4ff;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 14px;
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

[data-theme="light"] {
  --bg: #f7f9ff;
  --panel: #ffffff;
  --card: #ffffff;
  --text: #0b0f17;
  --muted: #405173;
  --accent: #4b5bff;
  --accent-2: #00b7ff;
  --shadow: 0 8px 24px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2340, transparent),
              radial-gradient(1200px 600px at 90% -10%, #0c2740, transparent),
              var(--bg);
  line-height: 1.75;
  font-size: 17px;
}

/* subtle grid/noise texture */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,.06), rgba(0,0,0,0) 40%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 100px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, transparent 1px 100px);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.section { padding: 112px 0; }

/* Navbar */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,15,23,.75);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: .2px; display: inline-flex; align-items: center; gap: 10px; position: relative; z-index: 1; }
.logo-img { width: 28px; height: 28px; border-radius: 8px; object-fit: cover; box-shadow: 0 6px 18px rgba(0,0,0,.35); }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 600; padding: 8px 10px; border-radius: 10px; }
.nav-links a:hover, .nav-links a.active { color: var(--text); background: rgba(255,255,255,.05); }

.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 4px 0; transition: .2s ease; }
.theme-toggle { background: transparent; border: 1px solid rgba(255,255,255,.18); color: var(--text); padding: 6px 10px; border-radius: 10px; cursor: pointer; }

/* Hero */
.hero .grid-2 { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(30px, 5.2vw, 48px); line-height: 1.12; margin: 0 0 16px; }
.hero .subtext { color: var(--muted); font-size: 1.05rem; margin: 0 0 24px; }
.cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 16px; border-radius: 12px; color: #0b0f17; background: #dfe8ff; text-decoration: none; font-weight: 700; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.15); }
.btn:hover { transform: translateY(-1px); filter: brightness(1.04); }
.btn.primary { color: white; background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: 0; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,.18); }
.btn.ghost:hover { background: rgba(255,255,255,.06); }
.copy-hint { margin-left: 6px; color: var(--muted); opacity: 0; transform: translateY(4px); transition: opacity .25s ease, transform .25s ease; }
.copy-hint.visible { opacity: 1; transform: translateY(0); }

/* split button */
.btn-split { display: inline-flex; border-radius: 12px; overflow: hidden; border: 1px solid rgba(255,255,255,.18); }
.btn-split .btn { border: 0; border-radius: 0; box-shadow: none; }
.btn-split .left { border-right: 1px solid rgba(255,255,255,.18); }
.btn-split .right { text-decoration: none; }

.hero-art { position: relative; min-height: 280px; }
.blob { position: absolute; inset: -20px -40px auto auto; width: 220px; height: 220px; background: radial-gradient(closest-side, rgba(109,94,252,.5), transparent), radial-gradient(closest-side, rgba(0,212,255,.35), transparent); border-radius: 50%; filter: blur(20px); opacity: .8; }
.code-card { position: relative; background: rgba(18,26,46,.8); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; transform: perspective(1000px) rotateX(0) rotateY(0); transition: transform .3s ease; }
.code-card:hover { transform: perspective(1000px) rotateX(2deg) rotateY(-2deg); }
.code-card pre { margin: 0; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: .98rem; color: #c7d5ff; overflow-x: auto; }

/* Readme */
.readme-content { background: linear-gradient(180deg, rgba(20,27,47,.7), rgba(16,22,39,.7)); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.readme-content h3 { margin-top: 0; }
.readme-content pre { background: #0b1222; border: 1px solid rgba(255,255,255,.06); padding: 14px; border-radius: 12px; overflow-x: auto; }
.readme-content code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; }
.readme-content ul { margin: 0 0 1rem 1.25rem; color: var(--muted); }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { position: relative; background: linear-gradient(180deg, rgba(17,24,43,.9), rgba(14,20,36,.9)); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; background: linear-gradient(135deg, rgba(109,94,252,.0), rgba(0,212,255,.0)); z-index: -1; transition: opacity .35s ease; opacity: 0; filter: blur(8px); }
.card:hover::after { opacity: .6; background: linear-gradient(135deg, rgba(109,94,252,.4), rgba(0,212,255,.35)); }
.feature .icon { font-size: 22px; }
.feature h3 { margin: 10px 0 6px; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); }

/* Featured */
.featured .badges-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: center; }
.featured .badge { display: inline-flex; transform: translateY(12px); opacity: 0; transition: transform .4s ease, filter .25s ease, opacity .4s ease; }
.featured .badge:hover { transform: translateY(-3px) scale(1.02); filter: brightness(1.06); }
.featured .badge:nth-child(1) { transition-delay: .05s; }
.featured .badge:nth-child(2) { transition-delay: .12s; }
.featured .badge:nth-child(3) { transition-delay: .18s; }
.featured .badge:nth-child(4) { transition-delay: .24s; }
.featured .badges-row.visible .badge { transform: translateY(0); opacity: 1; }

/* Snippets */
.tabs { display: flex; gap: 8px; margin: 8px 0 16px; }
.tab { background: rgba(255,255,255,.06); color: var(--muted); border: 1px solid rgba(255,255,255,.1); border-radius: 999px; padding: 8px 14px; cursor: pointer; font-weight: 700; }
.tab.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white; border: 0; }

.cards-grid .panel { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.panel.hidden { display: none; }
.cards-grid pre { background: #0b1222; border: 1px solid rgba(255,255,255,.06); padding: 12px; border-radius: 12px; overflow-x: auto; }
.cards-grid code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: 0.98rem; }

/* code block copy buttons */
pre { position: relative; }
.copy-code {
  position: absolute; top: 8px; right: 8px; font-size: 12px; padding: 6px 8px;
  border-radius: 8px; border: 1px solid rgba(255,255,255,.15); background: rgba(0,0,0,.2); color: var(--text);
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
.copy-code:hover { background: rgba(255,255,255,.08); }

/* Contribute */
.contribute ol { margin: 0 0 16px 1.25rem; }
.contribute code { background: #0b1222; border: 1px solid rgba(255,255,255,.06); padding: 2px 6px; border-radius: 8px; }

/* Who/How/Maintainer */
.whohow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.maintainer { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.maintainer-links { display: flex; gap: 12px; flex-wrap: wrap; }

/* Footer */
.footer { border-top: 1px solid rgba(255,255,255,.06); padding: 22px 0; background: rgba(11,15,23,.75); backdrop-filter: saturate(140%) blur(10px); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--text); }
.footer .social a { color: var(--muted); }
.footer .social a:hover { color: white; }

/* skip link */
.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { left: 12px; top: 12px; width: auto; height: auto; padding: 8px 12px; background: var(--panel); color: var(--text); border-radius: 8px; z-index: 100; }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }

/* Responsive */
@media (max-width: 980px) {
  .hero .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .features-grid, .cards-grid .panel, .whohow-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links { position: fixed; inset: 64px 0 auto 0; background: rgba(11,15,23,.95); border-bottom: 1px solid rgba(255,255,255,.06); padding: 12px; display: none; flex-direction: column; gap: 6px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: inline-block; }

  .cards-grid .panel, .whohow-grid { grid-template-columns: 1fr; }
}

/* scroll to top */
.to-top { position: fixed; right: 18px; bottom: 18px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); background: rgba(0,0,0,.35); color: var(--text); cursor: pointer; box-shadow: var(--shadow); backdrop-filter: blur(6px); }
.to-top[hidden] { display: none; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.contact-form label { display: block; margin-bottom: 12px; }
.contact-form label span { display: block; margin-bottom: 6px; color: var(--muted); font-weight: 600; }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%; padding: 12px 12px; border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14); background: rgba(0,0,0,.15); color: var(--text);
}
.contact-form textarea { resize: vertical; }
.contact-form .grid-2-compact { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form .consent { display: flex; align-items: center; gap: 8px; margin: 6px 0 8px; color: var(--muted); }
.contact-form .form-actions { display: flex; align-items: center; gap: 10px; }
.form-hint { color: var(--muted); font-weight: 600; }

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
  .contact-form .grid-2-compact { grid-template-columns: 1fr; }
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}