/* ─── Reset & Base ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0B0F1A;
  --surface: #111827;
  --surface-2: #1a2332;
  --fg: #F8FAFC;
  --fg-muted: #94A3B8;
  --fg-dim: #64748B;
  --cyan: #00D4FF;
  --cyan-dim: rgba(0, 212, 255, 0.12);
  --amber: #F59E0B;
  --amber-dim: rgba(245, 158, 11, 0.12);
  --border: rgba(148, 163, 184, 0.1);
  --font-display: 'Bricolage Grotesque', 'Arial Black', sans-serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ─── Nav ─────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 20px 0 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.75rem;
  color: var(--fg-dim);
  font-weight: 300;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ─── Hero ───────────────────────────────────────────── */
.hero {
  padding: 96px 0 80px;
  background: radial-gradient(ellipse 80% 60% at 70% 40%, rgba(0,212,255,0.04) 0%, transparent 70%);
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  font-weight: 500;
  margin-bottom: 20px;
}
.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 42ch;
  line-height: 1.7;
}

/* ─── Inbox scene ─────────────────────────────────────── */
.inbox-scene {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  font-family: var(--font-body);
}
.scene-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: 16px;
}
.inbox-stream {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.msg-row {
  display: grid;
  grid-template-columns: 80px 1fr 80px;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  animation: msgIn 0.4s ease-out forwards;
  opacity: 0;
}
.msg-row:nth-child(1) { animation-delay: 0.1s; opacity: 1; }
.msg-row:nth-child(2) { animation-delay: 0.3s; opacity: 1; }
.msg-row:nth-child(3) { animation-delay: 0.5s; opacity: 1; }
.msg-row:nth-child(4) { animation-delay: 0.7s; opacity: 1; }
.msg-row:nth-child(5) { animation-delay: 0.9s; opacity: 1; }

@keyframes msgIn {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}
.msg-hot { border-left: 2px solid var(--cyan); }
.msg-cold { border-left: 2px solid transparent; opacity: 0.6; }
.msg-from { color: var(--fg-muted); font-size: 0.72rem; font-weight: 500; }
.msg-sub { color: var(--fg); font-size: 0.78rem; }
.msg-status {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 20px;
  text-align: center;
}
.triaged { background: var(--cyan-dim); color: var(--cyan); }
.scheduled { background: var(--amber-dim); color: var(--amber); }
.archived { background: rgba(100,116,139,0.12); color: var(--fg-dim); }
.replied { background: rgba(34,197,94,0.12); color: #22C55E; }
.escalated { background: rgba(245,158,11,0.12); color: var(--amber); }

.scene-pulse {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--fg-dim);
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 0 0 rgba(34,197,94,0.4);
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  70% { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* ─── How ─────────────────────────────────────────────── */
.how {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}
.how-header {
  max-width: 700px;
  margin: 0 auto 72px;
  text-align: center;
  padding: 0 32px;
}
.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 18px;
}
.how-header p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}
.how-steps {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.step {
  padding: 36px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.step-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--cyan-dim);
  letter-spacing: -0.05em;
  line-height: 1;
  margin-bottom: 20px;
}
.step-body h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.step-body p {
  color: var(--fg-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ─── Features ───────────────────────────────────────── */
.features {
  padding: 96px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.features-header {
  max-width: 600px;
  margin: 0 auto 64px;
  text-align: center;
  padding: 0 32px;
}
.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-bottom: 14px;
}
.features-header p {
  color: var(--fg-muted);
  font-size: 0.9rem;
}
.features-grid {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.feature-card {
  padding: 40px 36px;
  background: var(--surface);
}
.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--fg-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ─── Outcomes ───────────────────────────────────────── */
.outcomes {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}
.outcomes-grid {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.outcome {}
.outcome-stat {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 12px;
}
.outcome-stat small {
  font-size: 0.4em;
  font-weight: 600;
}
.outcome-label {
  color: var(--fg-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ─── Closing ────────────────────────────────────────── */
.closing {
  padding: 96px 0 120px;
  border-top: 1px solid var(--border);
  text-align: center;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(0,212,255,0.03) 0%, transparent 60%);
}
.closing p {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.2;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ─── Footer ─────────────────────────────────────────── */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: -0.02em;
}
.footer-note {
  color: var(--fg-dim);
  font-size: 0.78rem;
  flex: 1;
}
.footer-legal {
  color: var(--fg-dim);
  font-size: 0.7rem;
}

/* ─── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .how-steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .outcomes-grid { grid-template-columns: 1fr; gap: 32px; }
  .msg-row { grid-template-columns: 60px 1fr 70px; }
  .msg-sub { font-size: 0.7rem; }
  .nav-tagline { display: none; }
}
@media (max-width: 480px) {
  .hero { padding: 60px 0 48px; }
  .how, .features, .outcomes, .closing { padding: 64px 0; }
  .step { padding: 28px 24px; }
  .feature-card { padding: 28px 24px; }
}