/* ── ZerozeroOS Theme ─────────────────────────── */
:root {
  --bg:       #080810;
  --bg-card:  #0e0e1a;
  --bg-card-hover: #14142a;
  --accent:   #00e5ff;
  --amber:    #ffb700;
  --text:     #e8e8f0;
  --text-dim: #6e6e8a;
  --text-muted: #3a3a52;
  --border:   #1a1a2e;
  --font-mono: 'JetBrains Mono', 'Fira Mono', monospace;
  --font-sans: 'Instrument Sans', system-ui, sans-serif;
}

/* ── Reset ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ─────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-mono); font-weight: 700; line-height: 1.15; }
a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.75; }

/* ── Navbar ─────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 40px;
  background: rgba(8, 8, 16, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 18px; font-weight: 700;
  color: var(--text); letter-spacing: -0.02em;
}
.logo-bracket { color: var(--accent); }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); opacity: 1; }

/* ── Hero ───────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 140px 40px 80px;
  position: relative; overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 80%);
}
.hero-content {
  max-width: 1100px; margin: 0 auto;
  position: relative; z-index: 1; width: 100%;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-dim);
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 4px; margin-bottom: 40px;
  letter-spacing: 0.04em;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--amber); box-shadow: 0 0 6px var(--amber);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero-headline {
  font-family: var(--font-mono);
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
  line-height: 1;
}
.line-dim { color: var(--text-dim); }
.line-bright { color: var(--accent); }

.hero-sub {
  font-size: 18px; color: var(--text-dim);
  max-width: 540px; margin-bottom: 52px;
  line-height: 1.7;
}

/* Terminal widget */
.hero-terminal {
  background: #0b0b16;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 560px;
  box-shadow: 0 0 60px rgba(0,229,255,0.06), 0 24px 48px rgba(0,0,0,0.5);
}
.terminal-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 12px 16px;
  background: #0f0f1e; border-bottom: 1px solid var(--border);
}
.t-dot { width: 12px; height: 12px; border-radius: 50%; }
.t-red    { background: #ff5f57; }
.t-yellow { background: #ffbd2e; }
.t-green  { background: #28c840; }
.t-label  {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
  margin-left: 8px; letter-spacing: 0.02em;
}
.terminal-body { padding: 20px 24px; }
.t-line {
  font-family: var(--font-mono); font-size: 13px;
  color: var(--text-dim); margin-bottom: 6px; display: flex; gap: 8px;
}
.t-prompt { color: var(--accent); font-weight: 700; }
.t-cmd    { color: var(--text); }
.t-comment { color: var(--text-muted); font-style: italic; }
.t-ok     { color: var(--amber); }
.t-cursor::after {
  content: '▋'; color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Hero CTA ────────────────────────────────── */
.hero-cta {
  margin-top: 40px;
}
.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  transition: opacity 0.2s;
  letter-spacing: 0.01em;
}
.cta-primary:hover { opacity: 0.85; }

/* ── Capabilities ───────────────────────────── */
.capabilities { padding: 100px 40px; }
.cap-inner { max-width: 1100px; margin: 0 auto; }
.cap-label, .man-label, .stack-label {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--accent); letter-spacing: 0.06em;
  text-transform: uppercase; margin-bottom: 16px;
}
.cap-headline {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.cap-sub { color: var(--text-dim); font-size: 17px; margin-bottom: 60px; }

.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  transition: border-color 0.3s, background 0.3s;
}
.cap-card:hover {
  border-color: rgba(0,229,255,0.3);
  background: var(--bg-card-hover);
}
.cap-icon {
  width: 44px; height: 44px;
  background: rgba(0,229,255,0.07);
  border: 1px solid rgba(0,229,255,0.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.cap-card h3 {
  font-family: var(--font-mono); font-size: 16px;
  font-weight: 700; margin-bottom: 10px; color: var(--text);
}
.cap-card p { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

/* ── Manifesto ──────────────────────────────── */
.manifesto { padding: 100px 40px; border-top: 1px solid var(--border); }
.man-inner { max-width: 1100px; margin: 0 auto; }

.man-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
  align-items: start;
}
.man-headline {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.man-sub { color: var(--text-dim); font-size: 16px; line-height: 1.7; margin-bottom: 16px; }

.stack-list { border-top: 1px solid var(--border); margin-top: 8px; }
.stack-item {
  display: flex; gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 13px;
}
.s-key { color: var(--accent); min-width: 100px; font-weight: 600; }
.s-val { color: var(--text-dim); }

.man-quote {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 32px 36px;
  position: relative;
}
.q-mark {
  position: absolute; top: -16px; left: 28px;
  font-size: 64px; color: var(--accent); opacity: 0.15;
  font-family: var(--font-mono); line-height: 1;
}
.man-quote blockquote {
  font-size: 17px; color: var(--text); line-height: 1.7;
  margin-bottom: 12px; font-style: italic;
}
.man-quote cite {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
}

/* ── Closing ───────────────────────────────── */
.closing {
  padding: 120px 40px;
  text-align: center;
  position: relative; overflow: hidden;
  border-top: 1px solid var(--border);
}
.cl-inner { max-width: 700px; margin: 0 auto; position: relative; z-index: 1; }
.cl-glow {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(0,229,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cl-headline {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800; letter-spacing: -0.04em;
  margin-bottom: 20px; line-height: 1.1;
}
.cl-sub { color: var(--text-dim); font-size: 17px; line-height: 1.7; margin-bottom: 40px; }
.cl-terminal {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 14px;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 12px 24px; border-radius: 8px;
}
.cl-cmd { color: var(--accent); }

/* ── Footer ────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 40px;
}
.ft-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
}
.ft-logo { display: flex; flex-direction: column; gap: 4px; }
.ft-tagline { font-size: 13px; color: var(--text-muted); font-family: var(--font-mono); }
.ft-meta { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 10px; }
.ft-sep { color: var(--text-muted); opacity: 0.4; }

/* ── Mobile ────────────────────────────────── */
@media (max-width: 768px) {
  .navbar { padding: 16px 20px; }
  .hero { padding: 120px 20px 60px; }
  .man-grid { grid-template-columns: 1fr; gap: 40px; }
  .capabilities, .manifesto, .closing { padding: 60px 20px; }
  .ft-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
  .cap-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-headline { font-size: 48px; }
  .nav-links { display: none; }
}