:root {
  --bg: #0c1220;
  --surface: #131c2e;
  --surface-2: #1a2540;
  --border: rgba(255,255,255,0.07);
  --text: #e8edf5;
  --text-muted: #6b7a94;
  --accent: #00e5c0;
  --accent-dim: rgba(0,229,192,0.12);
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html { font-size: 16px; }

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

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  background: var(--accent);
  color: #0a0a12;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
  white-space: nowrap;
}
.btn-primary:hover { opacity: 0.88; }
.btn-primary.btn-sm { padding: 8px 18px; font-size: 0.88rem; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  background: transparent;
  color: var(--text-muted);
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* Navigation */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(12,18,32,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-signin {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 400;
  transition: color 0.2s;
}
.nav-signin:hover { color: var(--text); }

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,192,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,192,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  max-width: 860px;
  width: 100%;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-dim);
  border: 1px solid rgba(0,229,192,0.2);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 32px;
}

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

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

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 24px;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 52px;
  line-height: 1.65;
  font-weight: 300;
}

/* Hero UI Window */
.hero-ui {
  width: 100%;
  max-width: 680px;
  margin: 0 auto 28px;
}

.ui-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,229,192,0.06);
}

.ui-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.ui-dots {
  display: flex;
  gap: 5px;
}

.ui-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
}

.ui-dots span:nth-child(1) { background: #ff5f57; }
.ui-dots span:nth-child(2) { background: #febc2e; }
.ui-dots span:nth-child(3) { background: #28c840; }

.ui-filename {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: 'DM Mono', 'Courier New', monospace;
}

.ui-body {
  padding: 20px;
}

.waveform-wrap {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 64px;
  margin-bottom: 12px;
}

.waveform-bar {
  flex: 1;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.7;
  animation: wave-anim 1.4s ease-in-out infinite;
}

.waveform-bar:nth-child(odd) { animation-delay: -0.6s; }
.waveform-bar:nth-child(3n) { animation-delay: -1.1s; }

@keyframes wave-anim {
  0%, 100% { transform: scaleY(1); opacity: 0.7; }
  50% { transform: scaleY(0.55); opacity: 0.4; }
}

.ui-progress {
  height: 3px;
  background: var(--surface-2);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 72%;
  background: var(--accent);
  border-radius: 2px;
  position: relative;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: -2px; top: -3px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0,229,192,0.8);
}

.ui-output {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
}

.ui-output-tab {
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  cursor: default;
}

.ui-output-tab.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.ui-summary-block {
  background: rgba(0,229,192,0.04);
  border: 1px solid rgba(0,229,192,0.12);
  border-radius: 8px;
  padding: 14px 16px;
  text-align: left;
}

.summary-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.summary-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.55;
  font-style: italic;
  margin-bottom: 12px;
}

.summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.summary-tag {
  padding: 4px 10px;
  background: rgba(0,229,192,0.08);
  border: 1px solid rgba(0,229,192,0.15);
  border-radius: 100px;
  font-size: 0.68rem;
  color: var(--accent);
  font-weight: 500;
}

.hero-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-format-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Section shared */
.section-eyebrow {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 56px;
}

/* How */
.how {
  padding: 100px 48px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(12,18,32,0.6) 100%);
}

.steps-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.step-card {
  max-width: 240px;
  text-align: left;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.step-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-connector {
  padding: 0 16px;
  opacity: 0.5;
}

/* Features */
.features {
  padding: 100px 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.feature-card {
  padding: 32px 28px;
  background: var(--surface);
  transition: background 0.25s;
}

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

.feature-icon {
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Pricing */
.pricing {
  padding: 100px 48px;
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, rgba(0,229,192,0.03) 100%);
}

.pricing-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 680px;
  margin: 0 auto;
}

.pricing-card {
  flex: 1;
  min-width: 260px;
  padding: 36px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: left;
  position: relative;
}

.pricing-card.featured {
  background: var(--surface-2);
  border-color: rgba(0,229,192,0.25);
  box-shadow: 0 0 40px rgba(0,229,192,0.08);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: 100px;
}

.plan-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text);
  margin-bottom: 16px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--text);
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pricing-cta {
  display: block;
  margin-top: 28px;
  padding: 13px 24px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  text-decoration: none;
  transition: opacity 0.15s;
}

.pricing-cta:hover { opacity: 0.85; }

.pricing-note {
  margin-top: 32px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Closing */
.closing {
  padding: 100px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 500px; height: 300px;
  background: radial-gradient(ellipse, rgba(0,229,192,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.closing-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
  position: relative;
}

.closing-heading em {
  font-style: italic;
  color: var(--accent);
}

.closing-sub {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 420px;
  margin: 0 auto 36px;
  line-height: 1.65;
  font-weight: 300;
}

.closing-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

/* Built For */
.builtfor {
  padding: 100px 48px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,229,192,0.02) 50%, transparent 100%);
}
.builtfor-inner { max-width: 1100px; margin: 0 auto; }

.builtfor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.builtfor-card {
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s, background 0.2s;
}
.builtfor-card:hover {
  border-color: rgba(0,229,192,0.2);
  background: var(--surface-2);
}

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

.builtfor-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.builtfor-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* FAQ */
.faq {
  padding: 100px 48px;
}
.faq-inner { max-width: 720px; margin: 0 auto; }

.faq-list { display: flex; flex-direction: column; gap: 0; }

.faq-item {
  border-top: 1px solid var(--border);
  padding: 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--border); }

.faq-q {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  gap: 16px;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s;
}
details[open] .faq-q::after { transform: rotate(45deg); }

.faq-a {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  padding-bottom: 20px;
}
.faq-a a { color: var(--accent); text-decoration: none; }
.faq-a a:hover { text-decoration: underline; }

/* Footer */
footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 900px;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text);
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--text); }

.footer-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar { padding: 16px 24px; }
  .nav-links { display: none; }
  .nav-actions .nav-signin { display: none; }
  .hero { padding: 100px 24px 60px; }
  .hero-headline { font-size: 2.2rem; }
  .hero-cta-row { flex-direction: column; gap: 12px; }
  .how, .features, .pricing, .closing, .builtfor, .faq { padding: 64px 24px; }
  .steps-row { flex-direction: column; gap: 16px; }
  .step-connector { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { flex-direction: column; }
  .builtfor-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 12px; }
  .footer-nav { gap: 16px; }
  footer { padding: 32px 24px; }
  .closing-cta-row { flex-direction: column; gap: 12px; }
}