/* ============================================================
   VaultCheck — Dark Terminal Theme
   ============================================================ */

:root {
  --bg: #07090c;
  --bg-alt: #0b0f14;
  --surface: #0e1419;
  --surface-2: #131a21;
  --border: #1a242e;
  --border-bright: #243040;
  --text-primary: #dde8f0;
  --text-secondary: #7a8fa0;
  --text-muted: #3d5266;

  --safe: #00d47a;
  --safe-dim: #00d47a22;
  --caution: #ffb340;
  --caution-dim: #ffb34022;
  --danger: #ff4757;
  --danger-dim: #ff475722;

  --accent: #00d47a;
  --accent-glow: #00d47a33;

  --font-display: 'Syne', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

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

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

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

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 56px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 9, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- SECTION COMMON ---- */
section { padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 5vw, 4rem); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  max-width: 680px;
  margin-bottom: 1.5rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 56px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-glow-1 {
  position: absolute;
  top: 20%;
  right: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  bottom: 10%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #00331133 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-left { display: flex; flex-direction: column; gap: 1.5rem; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--safe);
  background: var(--safe-dim);
  border: 1px solid #00d47a33;
  border-radius: 4px;
  padding: 5px 10px;
  width: fit-content;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--safe);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 480px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stat { display: flex; flex-direction: column; gap: 2px; }

.stat-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
  flex-shrink: 0;
}

/* ---- SCAN PANEL ---- */
.hero-right { display: flex; justify-content: flex-end; }

.scan-panel {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0, 212, 122, 0.06), 0 24px 60px rgba(0,0,0,0.5);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.panel-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--safe);
  letter-spacing: 0.06em;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--safe);
  animation: pulse-dot 2s ease-in-out infinite;
}

.panel-body { padding: 16px; display: flex; flex-direction: column; gap: 8px; }

.tx-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

.tx-row:last-child { border-bottom: none; }

.tx-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.tx-val {
  font-size: 0.82rem;
  color: var(--text-primary);
  text-align: right;
  word-break: break-all;
}

.mono { font-family: var(--font-mono); }

.risk-flag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

.risk-high {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid #ff475733;
}

.tx-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.verdict-block { display: flex; flex-direction: column; gap: 8px; }

.verdict {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 8px 12px;
  border-radius: 6px;
}

.verd-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid #ff475744;
}

.verdict-msg {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.panel-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}

.scan-time {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
  max-width: 900px;
}

.step-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.step-icon {
  color: var(--text-secondary);
}

.step-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 3rem;
  color: var(--border-bright);
}

/* ============================================================
   FEATURES
   ============================================================ */
.features { background: var(--bg); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--border);
}

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 2rem;
  background: var(--surface);
  transition: background 0.2s;
}

.feature-card:hover { background: var(--surface-2); }

.feature-icon-wrap {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--safe-dim);
  border: 1px solid #00d47a22;
  border-radius: 8px;
  color: var(--safe);
}

.feature-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   RISK SCORES
   ============================================================ */
.risk-scores { background: var(--bg-alt); border-top: 1px solid var(--border); }

.scores-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--border);
  margin-top: 3rem;
}

.score-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2rem;
  background: var(--surface);
  position: relative;
  overflow: hidden;
  transition: background 0.2s;
}

.score-card:hover { background: var(--surface-2); }

.score-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  pointer-events: none;
  border-radius: 0;
}

.score-safe .score-glow { background: radial-gradient(circle at top right, var(--safe-dim) 0%, transparent 70%); }
.score-caution .score-glow { background: radial-gradient(circle at top right, var(--caution-dim) 0%, transparent 70%); }
.score-danger .score-glow { background: radial-gradient(circle at top right, var(--danger-dim) 0%, transparent 70%); }

.score-header { display: flex; flex-direction: column; gap: 8px; }

.score-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border-radius: 5px;
  width: fit-content;
  position: relative;
  z-index: 1;
}

.safe-badge { background: var(--safe-dim); color: var(--safe); border: 1px solid #00d47a33; }
.caution-badge { background: var(--caution-dim); color: var(--caution); border: 1px solid #ffb34033; }
.danger-badge { background: var(--danger-dim); color: var(--danger); border: 1px solid #ff475733; }

.score-chain {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.score-checks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.score-checks li {
  font-size: 0.83rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.score-checks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-bright);
}

.score-safe .score-checks li::before { background: var(--safe); opacity: 0.5; }
.score-caution .score-checks li::before { background: var(--caution); opacity: 0.5; }
.score-danger .score-checks li::before { background: var(--danger); opacity: 0.5; }

.score-msg {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
  font-style: italic;
  position: relative;
  z-index: 1;
}

/* ============================================================
   CLOSING
   ============================================================ */
.closing {
  background: var(--bg);
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.closing-bg-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.closing-quote {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
  max-width: 600px;
}

.closing-attribution {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.closing-mid { display: flex; flex-direction: column; gap: 1rem; }

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.closing-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

.closing-cta { display: flex; flex-direction: column; align-items: center; gap: 1rem; }

.closing-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem clamp(1.5rem, 5vw, 4rem);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 4px; }

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 440px;
  line-height: 1.6;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-right { justify-content: flex-start; }
  .scan-panel { max-width: 100%; }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .step-connector { display: none; }

  .features-grid { grid-template-columns: 1fr 1fr; }
  .scores-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .stat-divider { display: none; }
  .hero-headline { font-size: 2.2rem; }
  .hero-right { display: none; }
}