/* ===== RESET & ROOT ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0D0D0F;
  --bg2: #111114;
  --bg3: #18181C;
  --fg: #EDEDED;
  --fg2: #8A8A8A;
  --fg3: #4A4A4A;
  --accent: #F59E0B;
  --accent-dim: #B4730A;
  --green: #4ADE80;
  --red: #F87171;
  --yellow: #FCD34D;
  --border: #252528;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }

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

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,13,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.5px;
}
.nav-logo .accent { color: var(--accent); }
.nav-version {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg3);
  background: var(--bg3);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 24px 80px;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg2);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 28px;
  max-width: 780px;
  letter-spacing: -0.03em;
}
.hero-title .strike {
  text-decoration: line-through;
  color: var(--fg3);
  text-decoration-color: var(--accent);
  text-decoration-thickness: 3px;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--fg2);
  max-width: 560px;
  font-weight: 300;
  line-height: 1.7;
}

/* ===== TERMINAL ===== */
.terminal-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 100px;
}
.terminal {
  background: #0A0A0C;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 780px;
}
.terminal-bar {
  background: #141418;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.tb {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.tb-red { background: #FF5F57; }
.tb-yellow { background: #FEBC2E; }
.tb-green { background: #28C840; }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg3);
  margin-left: 8px;
}
.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
}
.t-line { display: flex; align-items: baseline; flex-wrap: wrap; }
.t-prompt { color: var(--accent); margin-right: 8px; flex-shrink: 0; }
.t-cmd { color: var(--fg); }
.t-comment { color: var(--fg3); font-style: italic; }
.t-success { color: var(--green); }
.t-input { color: var(--fg); border-bottom: 1px dashed var(--fg3); padding-bottom: 1px; }
.t-output { color: #A8E6CF; }
.t-cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--accent);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: bottom;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.terminal-caption {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--fg3);
  font-family: var(--font-mono);
}

/* ===== SECTION LABEL ===== */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}

/* ===== ARCHITECTURE ===== */
.arch {
  background: var(--bg2);
  padding: 80px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.arch-flow {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.arch-node {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 28px;
  text-align: center;
  min-width: 160px;
  flex: 1;
}
.an-icon {
  color: var(--accent);
  margin-bottom: 12px;
  display: flex;
  justify-content: center;
}
.an-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 6px;
}
.an-sub {
  font-size: 0.72rem;
  color: var(--fg3);
  line-height: 1.4;
}
.arch-arrow {
  font-size: 1.4rem;
  color: var(--fg3);
}

/* ===== FEATURES ===== */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.feature-card {
  background: var(--bg2);
  padding: 28px 28px;
  transition: background 0.2s;
}
.feature-card:hover { background: var(--bg3); }
.fc-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.feature-card p {
  font-size: 0.88rem;
  color: var(--fg2);
  line-height: 1.6;
}

/* ===== WHY ===== */
.why {
  background: var(--bg2);
  padding: 80px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.why-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.why-text {
  font-size: 1rem;
  color: var(--fg2);
  line-height: 1.75;
  margin-bottom: 20px;
}
.why-right { display: flex; flex-direction: column; gap: 32px; }
.why-stat { display: flex; align-items: baseline; gap: 20px; }
.ws-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 80px;
}
.ws-desc {
  font-size: 0.88rem;
  color: var(--fg2);
  max-width: 260px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 24px;
  text-align: center;
}
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-title {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.closing-sub {
  font-size: 1rem;
  color: var(--fg3);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}
.footer-logo .accent { color: var(--accent); }
.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg3);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links span {
  font-size: 0.78rem;
  color: var(--fg3);
  font-family: var(--font-mono);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding-top: 100px; }
  .why-grid { grid-template-columns: 1fr; gap: 48px; }
  .arch-flow { flex-direction: column; gap: 12px; }
  .arch-arrow { transform: rotate(90deg); }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .ws-num { font-size: 1.8rem; }
  .feature-card { padding: 20px; }
}