/* SentinelIQ — Dark Intelligence Theme */

:root {
  --bg-deep: #060D18;
  --bg-primary: #0B1929;
  --bg-card: #0F2035;
  --bg-card-hover: #132940;
  --accent: #00D4AA;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.25);
  --text-primary: #E8F4F0;
  --text-secondary: #7BA3B0;
  --text-muted: #4A6B7A;
  --signal-warn: #FF6B35;
  --signal-warn-bg: rgba(255, 107, 53, 0.1);
  --signal-opp: #00D4AA;
  --signal-opp-bg: rgba(0, 212, 170, 0.1);
  --signal-neutral: #5B8DB8;
  --signal-neutral-bg: rgba(91, 141, 184, 0.1);
  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(0, 212, 170, 0.25);
}

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

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ── HERO ────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px 40px;
  position: relative;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(0, 180, 140, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 10% 80%, rgba(0, 80, 200, 0.05) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 40px;
  padding: 6px 14px;
  margin-bottom: 28px;
}

.hero-headline {
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.08;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 440px;
}

.hero-cta {
  display: inline-block;
  margin-top: 28px;
  padding: 12px 28px;
  background: var(--accent);
  color: var(--bg-deep);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  border-radius: 10px;
  text-decoration: none;
  transition: opacity 0.15s;
}
.hero-cta:hover { opacity: 0.85; }

/* Briefing Card */
.briefing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 60px rgba(0, 212, 170, 0.05);
  position: relative;
  overflow: hidden;
}

.briefing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.briefing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.briefing-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.briefing-date {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.briefing-signals {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.signal {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.55;
}

.signal-warn { background: var(--signal-warn-bg); }
.signal-opportunity { background: var(--signal-opp-bg); }
.signal-neutral { background: var(--signal-neutral-bg); }

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.signal-warn .signal-dot { background: var(--signal-warn); }
.signal-opportunity .signal-dot { background: var(--signal-opp); }
.signal-neutral .signal-dot { background: var(--signal-neutral); }

.signal strong { display: block; margin-bottom: 2px; color: var(--text-primary); }
.signal span:last-child { color: var(--text-secondary); }

.briefing-footer {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.hero-scroll-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 60px;
  margin-left: 0;
  justify-content: center;
  animation: bounce 2.5s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ── BRIEFING PREVIEW ───────────────────────────────── */
.briefing-preview {
  padding: 100px 60px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.preview-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.preview-label {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
  margin-bottom: 32px;
}

.label-line {
  height: 1px;
  width: 60px;
  background: var(--border-accent);
}

.preview-label span {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
}

.preview-headline {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.12;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-primary) 0%, #A8D4C8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preview-body {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ── HOW IT WORKS ───────────────────────────────────── */
.how-it-works {
  padding: 100px 60px;
  background: var(--bg-deep);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 1100px;
  margin: 0 auto;
}

.step {
  padding: 48px 40px;
  background: var(--bg-card);
  border-radius: 2px;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  opacity: 0.7;
}

.step h3 {
  font-size: 20px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.step p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ── SIGNAL TYPES ───────────────────────────────────── */
.signal-types {
  padding: 100px 60px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
}

.signal-types-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.signal-types-header {
  margin-bottom: 56px;
  max-width: 520px;
}

.signal-types-header h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  margin-bottom: 16px;
}

.signal-types-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.signals-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  transition: all 0.2s ease;
}

.signal-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.signal-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.signal-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.signal-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ── MANIFESTO ──────────────────────────────────────── */
.manifesto {
  padding: 120px 60px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
}

.manifesto-inner {
  max-width: 760px;
  margin: 0 auto;
}

.manifesto-eyebrow {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.manifesto-headline {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.1;
  margin-bottom: 32px;
  background: linear-gradient(135deg, var(--text-primary) 0%, #8ABFC4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.manifesto-body {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.manifesto-quote {
  margin-top: 48px;
  padding-left: 32px;
  border-left: 2px solid var(--accent);
}

.quote-mark {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 80px;
  line-height: 0.5;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
  opacity: 0.5;
}

.manifesto-quote p {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-primary);
  font-style: italic;
}

/* ── FOOTER ─────────────────────────────────────────── */
.site-footer {
  padding: 56px 60px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-bottom span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .signals-row { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; gap: 2px; }
}

@media (max-width: 768px) {
  .hero { padding: 60px 24px 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-right { order: -1; }
  .hero-headline { font-size: 40px; }
  .briefing-preview, .how-it-works, .signal-types, .manifesto { padding: 72px 24px; }
  .signals-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
  .site-footer { padding: 40px 24px; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 32px; }
  .preview-headline, .manifesto-headline { font-size: 28px; }
}