@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

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

:root {
  --bg:       #07070a;
  --bg2:      #0c0c0f;
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.13);
  --text:     rgba(255,255,255,0.93);
  --dim:      rgba(255,255,255,0.52);
  --faint:    rgba(255,255,255,0.24);
  --font:     'DM Sans', -apple-system, system-ui, sans-serif;
  --mono:     'DM Mono', 'Cascadia Code', monospace;
  --radius:   14px;
  --green:    rgba(110,231,183,0.1);
  --green-hi: rgba(110,231,183,0.5);
}

html { scroll-behavior: smooth; }

/* ── Grain ───────────────────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.03;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Nav ─────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 64px;
  background: rgba(7,7,10,0.75);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 17px; font-weight: 600; color: var(--text);
  text-decoration: none; letter-spacing: -0.02em;
}
.nav-logo svg { width: 21px; height: 21px; opacity: 0.9; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  font-size: 13.5px; color: var(--dim); text-decoration: none;
  padding: 6px 12px; border-radius: 8px;
  transition: color 0.12s, background 0.12s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-links a.active { color: var(--text); }
.nav-cta {
  font-size: 13px !important; font-weight: 500;
  color: var(--text) !important;
  background: rgba(255,255,255,0.08) !important;
  border: 1px solid var(--border2) !important;
  padding: 7px 16px !important; border-radius: 8px !important;
  transition: background 0.12s, border-color 0.12s !important;
}
.nav-cta:hover { background: rgba(255,255,255,0.13) !important; border-color: rgba(255,255,255,0.22) !important; }
.nav-github {
  display: flex; align-items: center;
  color: var(--faint) !important; padding: 6px 8px !important;
  border-radius: 8px !important; background: none !important; border: none !important;
  transition: color 0.12s, background 0.12s !important;
}
.nav-github:hover { color: var(--dim) !important; background: rgba(255,255,255,0.05) !important; }

/* ── Layout ──────────────────────────────────────────────────────── */
.page { padding-top: 64px; }
.container    { max-width: 1040px; margin: 0 auto; padding: 0 48px; }
.container-sm { max-width: 700px;  margin: 0 auto; padding: 0 48px; }

/* ── Typography ──────────────────────────────────────────────────── */
.eyebrow {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--green-hi);
  display: inline-block; margin-bottom: 18px;
}
h1 { font-size: clamp(38px, 6.5vw, 72px); font-weight: 600; letter-spacing: -0.035em; line-height: 1.06; }
h2 { font-size: clamp(26px, 4vw, 42px);   font-weight: 600; letter-spacing: -0.028em; line-height: 1.12; }
h3 { font-size: 19px; font-weight: 600; letter-spacing: -0.015em; }
p  { color: var(--dim); line-height: 1.72; }

/* ── Cards ───────────────────────────────────────────────────────── */
.card {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}
.card:hover { border-color: var(--border2); background: rgba(255,255,255,0.035); }

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font); font-size: 14px; font-weight: 500;
  text-decoration: none; cursor: pointer; border: none;
  padding: 12px 24px; border-radius: 10px;
  transition: all 0.15s; letter-spacing: -0.01em;
}
.btn-primary {
  background: var(--text); color: var(--bg);
  box-shadow: 0 0 0 0 rgba(255,255,255,0.1);
}
.btn-primary:hover {
  background: rgba(255,255,255,0.88);
  box-shadow: 0 4px 24px rgba(255,255,255,0.1);
  transform: translateY(-1px);
}
.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: var(--border2); transform: translateY(-1px); }

/* ── Kbd ─────────────────────────────────────────────────────────── */
kbd {
  font-family: var(--mono); font-size: 12px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border2);
  border-radius: 5px; padding: 2px 7px;
  color: var(--dim); white-space: nowrap;
}

/* ── Divider ─────────────────────────────────────────────────────── */
.divider { width: 100%; height: 1px; background: var(--border); margin: 80px 0; }

/* ── Nature band ─────────────────────────────────────────────────── */
.nature-band {
  width: 100%; height: 320px; overflow: hidden;
  position: relative; margin: 0;
}
.nature-band img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 40%;
  filter: brightness(0.28) saturate(0.6);
  display: block;
}
.nature-band-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--bg) 0%, transparent 30%, transparent 70%, var(--bg) 100%);
}
.nature-band-text {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: clamp(20px, 3vw, 32px); font-weight: 300;
  color: rgba(255,255,255,0.55); letter-spacing: -0.02em;
  padding: 0 40px; text-align: center; line-height: 1.5;
}
.nature-band-text strong { color: rgba(255,255,255,0.88); font-weight: 500; }

/* ── Footer ──────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 52px 48px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 20px;
}
.footer-logo { font-size: 15px; font-weight: 600; color: rgba(255,255,255,0.4); letter-spacing: -0.01em; }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--faint); text-decoration: none; transition: color 0.12s; }
.footer-links a:hover { color: var(--dim); }

/* ── Animations ──────────────────────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up   { animation: fade-up 0.55s cubic-bezier(0.22,1,0.36,1) both; }
.fade-up-1 { animation-delay: 0.1s; }
.fade-up-2 { animation-delay: 0.2s; }
.fade-up-3 { animation-delay: 0.3s; }
.fade-up-4 { animation-delay: 0.4s; }

/* Scroll reveal */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* ── Marquee ─────────────────────────────────────────────────────── */
.marquee-wrap {
  overflow: hidden; padding: 20px 0; border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border); margin: 80px 0;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.marquee-track {
  display: flex; gap: 48px; white-space: nowrap;
  animation: marquee 28s linear infinite;
}
.marquee-track span {
  font-size: 12px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--faint);
  flex-shrink: 0;
}
.marquee-track span.dot { color: var(--green-hi); font-size: 8px; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Code block ──────────────────────────────────────────────────── */
.code-block {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: 10px; padding: 20px 22px;
  font-family: var(--mono); font-size: 13px;
  color: var(--dim); line-height: 1.75;
  overflow-x: auto;
}
.code-block .c { color: var(--faint); }
.code-block .k { color: rgba(255,255,255,0.6); }
.code-block .s { color: rgba(110,231,183,0.7); }

/* ── Page hero (inner pages) ─────────────────────────────────────── */
.page-hero {
  position: relative; overflow: hidden;
  padding: 110px 0 72px;
}
.page-hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.page-hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 30%;
  filter: brightness(0.18) saturate(0.5);
}
.page-hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,7,10,0.5) 0%, rgba(7,7,10,0.7) 60%, var(--bg) 100%);
}
.page-hero-content { position: relative; z-index: 1; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .nav { padding: 0 20px; }
  .container, .container-sm { padding: 0 24px; }
  .footer { padding: 40px 24px; flex-direction: column; align-items: flex-start; }
  .nav-links a:not(.nav-cta):not(.nav-github) { display: none; }
  .nature-band { height: 220px; }
}