/* froots — Bitroot's hosted MCP fleet. Terminal-dark landing. */

:root {
  --bg: #050505;
  --bg-elev: #0c0d10;
  --bg-card: #0e0f13;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: rgba(255, 255, 255, 0.92);
  --text-dim: rgba(255, 255, 255, 0.55);
  --text-faint: rgba(255, 255, 255, 0.34);
  --accent: #1f77f9;
  --accent-soft: rgba(31, 119, 249, 0.14);
  --green: #22c55e;
  --purple: #8b5cf6;
  --orange: #f59e0b;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Inter', -apple-system, system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ─── Nav ─────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5, 5, 5, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1120px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-family: var(--mono); font-weight: 600; font-size: 15px; text-decoration: none; letter-spacing: -0.02em; }
.logo-bracket { color: var(--text-faint); }
.logo-text { color: var(--text); }
.logo-dot { color: var(--accent); }
.logo-froots { color: var(--accent); }
.nav-links { display: flex; gap: 28px; }
.nav-link {
  font-family: var(--mono); font-size: 13px; color: var(--text-dim);
  text-decoration: none; transition: color 0.15s;
}
.nav-link:hover { color: var(--text); }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-menu-btn span { width: 22px; height: 2px; background: var(--text); transition: 0.2s; }
.mobile-menu { display: none; }

/* ─── Hero ────────────────────────────────────────── */
.hero {
  position: relative; height: 100vh; min-height: 640px;
  display: flex; overflow: hidden;
}
.hero-fade {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 30%, transparent 0%, var(--bg) 78%),
              linear-gradient(180deg, transparent 40%, var(--bg) 100%);
  pointer-events: none;
}
/* Ambient footage anchored to the right — screen-blended so the black
   grid drops out and only the glow reads against the terminal bg. */
.hero-video {
  position: absolute; top: 42%; right: -2vw;
  transform: translateY(-50%);
  width: min(44vw, 600px); height: auto; aspect-ratio: 1 / 1;
  object-fit: cover;
  z-index: 1; pointer-events: none;
  opacity: 0.85;
  mix-blend-mode: screen;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, #000 45%),
    linear-gradient(180deg, transparent 0%, #000 22%, #000 68%, transparent 96%),
    radial-gradient(ellipse at 52% 48%, #000 42%, transparent 74%);
  mask-image:
    linear-gradient(90deg, transparent 0%, #000 45%),
    linear-gradient(180deg, transparent 0%, #000 22%, #000 68%, transparent 96%),
    radial-gradient(ellipse at 52% 48%, #000 42%, transparent 74%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}
.hero-bottom { position: relative; z-index: 2; width: 100%; align-self: flex-end; padding-bottom: 8vh; }
.hero-content { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.hero-title {
  font-family: var(--mono); font-weight: 600;
  font-size: clamp(38px, 7vw, 76px); line-height: 1.02;
  letter-spacing: -0.03em; margin-bottom: 22px;
}
.title-line { display: block; }
.title-accent { color: var(--accent); }
.hero-subtitle { font-size: clamp(15px, 2vw, 18px); color: var(--text-dim); max-width: 540px; margin-bottom: 34px; }
.hero-actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 28px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; align-items: center; gap: 18px; font-family: var(--mono); }
.stat { display: flex; flex-direction: column; }
.stat-value { font-size: 22px; font-weight: 600; color: var(--text); }
.stat-label { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.stat-divider { color: var(--border-strong); font-size: 22px; }

/* ─── Buttons ─────────────────────────────────────── */
.btn {
  font-family: var(--mono); font-size: 14px; font-weight: 500;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 8px; transition: 0.18s; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(31,119,249,0.32); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 26px rgba(31,119,249,0.42); }
.btn-ghost { background: transparent; color: var(--text-dim); border-color: var(--border-strong); }
.btn-ghost:hover { color: var(--text); border-color: var(--accent); }
.btn-lg { padding: 15px 28px; font-size: 15px; }
.btn-arrow { transition: transform 0.18s; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ─── Section headers ─────────────────────────────── */
.section-title { font-family: var(--mono); font-size: 14px; color: var(--accent); font-weight: 500; letter-spacing: 0.02em; }
.projects, .about, .submit { padding: 90px 0; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; flex-wrap: wrap; gap: 16px; }
.filter-tabs { display: flex; gap: 8px; }
.filter-tab {
  font-family: var(--mono); font-size: 12px; color: var(--text-dim);
  background: transparent; border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 12px; cursor: pointer; transition: 0.15s;
}
.filter-tab:hover { color: var(--text); border-color: var(--border-strong); }
.filter-tab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* ─── Project cards ───────────────────────────────── */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.project-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.012));
  border: 1px solid var(--border); border-radius: 12px; padding: 20px;
  transition: 0.2s; display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.4); }
.project-card.hidden { display: none; }
.card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.card-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--accent-soft); border: 1px solid rgba(31,119,249,0.3);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-weight: 600; font-size: 15px; color: var(--accent);
}
.icon-accent { background: var(--accent-soft); color: var(--accent); border-color: rgba(31,119,249,0.3); }
.icon-green { background: rgba(34,197,94,0.12); color: var(--green); border-color: rgba(34,197,94,0.3); }
.icon-purple { background: rgba(139,92,246,0.12); color: var(--purple); border-color: rgba(139,92,246,0.3); }
.icon-orange { background: rgba(245,158,11,0.12); color: var(--orange); border-color: rgba(245,158,11,0.3); }
.card-meta { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.card-tag {
  font-family: var(--mono); font-size: 10px; color: var(--text-faint);
  border: 1px solid var(--border); border-radius: 5px; padding: 3px 7px; text-transform: lowercase;
}
.card-title { font-family: var(--mono); font-size: 18px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
.card-desc { font-size: 13.5px; color: var(--text-dim); flex: 1; margin-bottom: 18px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--border); }
.card-author { font-family: var(--mono); font-size: 12px; color: var(--text-faint); }
.card-link { font-family: var(--mono); font-size: 12px; color: var(--accent); text-decoration: none; transition: 0.15s; }
.card-link:hover { opacity: 0.75; }
.card-link.disabled { color: var(--text-faint); pointer-events: none; }

/* ─── About ───────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; }
.about-content .section-title { margin-bottom: 24px; display: block; }
.about-text { font-size: 17px; margin-bottom: 18px; }
.text-highlight { color: var(--accent); font-weight: 600; }
.text-muted { color: var(--text-dim); font-size: 15px; }
.about-ascii { display: flex; justify-content: center; }
.ascii-art { font-family: var(--mono); font-size: 11px; color: var(--accent); line-height: 1.3; opacity: 0.85; }

/* ─── Submit ──────────────────────────────────────── */
.submit-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid var(--border-strong); border-radius: 16px;
  padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 40px;
  position: relative; overflow: hidden;
}
.submit-tag { font-family: var(--mono); font-size: 13px; color: var(--green); display: block; margin-bottom: 14px; }
.submit-title { font-family: var(--mono); font-size: clamp(22px, 3vw, 30px); font-weight: 600; margin-bottom: 12px; letter-spacing: -0.02em; }
.submit-text { color: var(--text-dim); margin-bottom: 26px; max-width: 460px; }
.submit-decoration { display: flex; flex-direction: column; gap: 10px; }
.decoration-line { width: 120px; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); opacity: 0.4; }
.decoration-line:nth-child(2) { width: 90px; }
.decoration-line:nth-child(3) { width: 60px; }

/* ─── Footer ──────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-content { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-logo { font-family: var(--mono); font-weight: 600; color: var(--text); }
.footer-copy { font-size: 12px; color: var(--text-faint); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-family: var(--mono); font-size: 13px; color: var(--text-dim); text-decoration: none; transition: 0.15s; }
.footer-links a:hover { color: var(--accent); }

/* ─── Responsive ──────────────────────────────────── */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  .mobile-menu {
    position: fixed; top: 53px; left: 0; right: 0; z-index: 99;
    background: var(--bg-elev); border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 16px 24px; gap: 14px; display: none;
  }
  .mobile-menu.open { display: flex; }
  .mobile-link { font-family: var(--mono); font-size: 15px; color: var(--text-dim); text-decoration: none; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .submit-card { flex-direction: column; align-items: flex-start; padding: 32px; }
  .submit-decoration { display: none; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  /* Pull the footage up and out of the copy's way on narrow screens. */
  .hero-video { top: 27%; right: -14vw; width: 92vw; opacity: 0.5; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
}