/* ==============================
   SignalWatch — Landing Page Theme
   Dark terminal aesthetic, emerald accents
   ============================== */

:root {
  --bg: #0F1117;
  --bg-2: #161B26;
  --bg-3: #1C2333;
  --fg: #F5F5F0;
  --fg-2: #9CA3AF;
  --fg-3: #6B7280;
  --accent: #00D97E;
  --accent-dim: rgba(0, 217, 126, 0.15);
  --accent-glow: rgba(0, 217, 126, 0.25);
  --border: #1F2937;
  --card: #161B26;
  --card-border: #1F2937;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* ============== HERO ============== */
.hero {
  padding: 80px 64px 96px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-headline {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-2);
  margin-bottom: 28px;
  max-width: 440px;
  line-height: 1.65;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 217, 126, 0.25);
  padding: 6px 14px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

/* Terminal Window */
.terminal-window {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 217, 126, 0.05);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green { background: #28C840; }

.terminal-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-3);
  margin-left: auto;
}

.terminal-body { padding: 0; }

.terminal-header-row {
  display: grid;
  grid-template-columns: 1fr 1fr 80px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.t-col {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  color: var(--fg-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.terminal-row {
  display: grid;
  grid-template-columns: 1fr 1fr 80px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.6);
  align-items: center;
  transition: background 0.15s;
}

.terminal-row:hover { background: rgba(255,255,255,0.02); }

.alert-new {
  background: rgba(0, 217, 126, 0.04);
  border-left: 2px solid var(--accent);
}

.alert-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  background: rgba(0, 217, 126, 0.15);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 8px;
  letter-spacing: 0.04em;
}

.form-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  background: rgba(255, 200, 0, 0.12);
  color: #FFC800;
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 8px;
  letter-spacing: 0.04em;
}

.ticker-badge {
  font-size: 10px;
  color: var(--fg-3);
  margin-left: 4px;
}

.t-new { color: var(--accent); }
.t-time { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--fg-3); }
.t-co { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--fg); font-weight: 500; }
.t-event { font-size: 12px; color: var(--fg); }

.terminal-status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-3);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.status-text {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-3);
}

/* ============== SHARED ============== */
.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

/* ============== HOW IT WORKS ============== */
.how-it-works {
  padding: 80px 64px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 32px;
  position: relative;
}

.step-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 48px;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 24px;
  letter-spacing: -0.04em;
}

.step-icon {
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.6;
}

/* ============== WHAT YOU GET ============== */
.what-you-get {
  padding: 80px 64px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 217, 126, 0.3);
}

.feature-icon {
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.6;
}

/* ============== PRICING ============== */
.pricing-section {
  padding: 80px 64px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 32px;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(0, 217, 126, 0.06) 0%, var(--card) 100%);
  box-shadow: 0 0 0 1px rgba(0, 217, 126, 0.2), 0 8px 32px rgba(0, 217, 126, 0.1);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.plan-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 8px;
}

.plan-price {
  font-size: 40px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}

.plan-period {
  font-size: 18px;
  font-weight: 400;
  color: var(--fg-2);
}

.plan-desc {
  font-size: 13px;
  color: var(--fg-2);
  margin-bottom: 24px;
  line-height: 1.5;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plan-features li {
  font-size: 13px;
  color: var(--fg-2);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plan-features li::before {
  content: '';
  width: 16px;
  height: 16px;
  min-width: 16px;
  background: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 8L6.5 11.5L13 4.5' stroke='%2300D97E' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
  margin-top: 2px;
}

/* ============== CLOSING ============== */
.closing-section {
  padding: 80px 64px 96px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-inner { max-width: 680px; margin: 0 auto; }

.closing-icon { margin-bottom: 24px; display: inline-block; }

.closing-headline {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-body {
  font-size: 17px;
  color: var(--fg-2);
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto;
}

/* ============== FOOTER ============== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 64px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand .brand-mark { margin-bottom: 8px; }

.footer-tagline {
  font-size: 13px;
  color: var(--fg-3);
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--fg-3);
}

.footer-links span { cursor: pointer; }
.footer-links span:hover { color: var(--fg-2); }

/* ============== RESPONSIVE ============== */
@media (max-width: 900px) {
  .hero { padding: 60px 32px 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .steps-grid, .features-grid, .pricing-grid { grid-template-columns: 1fr; }
  .how-it-works, .what-you-get, .pricing-section { padding: 60px 32px; }
  .closing-section { padding: 60px 32px 72px; }
  .footer { padding: 24px 32px; }
  .footer-inner { flex-direction: column; gap: 20px; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero { padding: 48px 20px 60px; }
  .how-it-works, .what-you-get, .pricing-section { padding: 48px 20px; }
  .closing-section { padding: 48px 20px 60px; }
  .footer { padding: 20px; }
}