/* === Design Tokens === */
:root {
  --bg-primary: #0a0a0f;
  --bg-surface: #141419;
  --bg-elevated: #1a1a22;
  --border-color: #23232b;
  --border-subtle: #1c1c24;
  --text-primary: #e8e8ed;
  --text-secondary: #9494a3;
  --text-muted: #6b6b7b;
  --accent-start: #6366f1;
  --accent-end: #8b5cf6;
  --accent-solid: #7c6ef6;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --max-width: 1100px;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent-solid); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

/* === Utility === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.gradient-text {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-solid);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* === Animations === */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Nav === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img { width: 28px; height: 28px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); text-decoration: none; }
.nav-cta {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.9; text-decoration: none !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); }
}

/* === Hero === */
.hero {
  padding: 140px 0 100px;
  text-align: center;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  position: relative;
}
.hero .subline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* Waitlist Form */
.waitlist-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto 40px;
  flex-wrap: wrap;
  justify-content: center;
}
.waitlist-form input[type="email"],
.waitlist-form input[type="text"] {
  flex: 1;
  min-width: 200px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}
.waitlist-form input:focus { border-color: var(--accent-solid); }
.waitlist-form input::placeholder { color: var(--text-muted); }
.waitlist-form .honeypot { display: none !important; }
.btn-primary {
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  white-space: nowrap;
}
.btn-primary:hover { opacity: 0.9; }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn-primary .spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.form-message {
  width: 100%;
  text-align: center;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
}
.form-message.success {
  color: var(--success);
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.form-message.error {
  color: var(--error);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.form-message.info {
  color: var(--accent-solid);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.2);
}
.gdpr-notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Code snippet */
.code-block {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  max-width: 600px;
  margin: 32px auto 0;
  overflow: hidden;
  text-align: left;
}
.code-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-color);
}
.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #28c840; }
.code-titlebar span:last-child {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}
.code-block pre {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
}
.code-block .hl-tag { color: #f472b6; }
.code-block .hl-attr { color: #67e8f9; }
.code-block .hl-val { color: #a5f3a6; }
.code-block .hl-comment { color: var(--text-muted); font-style: italic; }

/* === Section Shared === */
section {
  padding: 100px 0;
  position: relative;
}
section:nth-child(odd) { background: var(--bg-primary); }
section:nth-child(even) { background: var(--bg-surface); }

/* === Problem === */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.problem-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}
.problem-card .icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 14px;
}
.problem-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.problem-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === Synergy === */
.synergy-visual {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.synergy-streams {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
}
.synergy-stream {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}
.synergy-stream .stream-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.synergy-stream:nth-child(1) .stream-icon { background: rgba(99, 102, 241, 0.15); }
.synergy-stream:nth-child(2) .stream-icon { background: rgba(139, 92, 246, 0.15); }
.synergy-stream:nth-child(3) .stream-icon { background: rgba(236, 72, 153, 0.15); }
.synergy-stream h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.synergy-stream p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.synergy-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--accent-solid);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.synergy-arrow::before,
.synergy-arrow::after {
  content: '';
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-solid));
}
.synergy-arrow::after {
  background: linear-gradient(90deg, var(--accent-solid), transparent);
}
.synergy-result {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  width: 100%;
}
.synergy-result h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.synergy-result p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .synergy-streams { grid-template-columns: 1fr; }
}

/* === Strategic Alignment === */
.strategy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 40px;
  align-items: center;
}
.strategy-points { display: flex; flex-direction: column; gap: 20px; }
.strategy-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.strategy-point .point-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}
.strategy-point h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.strategy-point p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.strategy-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.strategy-card h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-solid);
  margin-bottom: 16px;
}
.strategy-card .strategy-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.85rem;
}
.strategy-card .strategy-item:last-child { border-bottom: none; }
.strategy-card .strategy-item .badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 20px;
  font-weight: 500;
}
.badge-high {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
}
.badge-medium {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
}
.badge-aligned {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
}

@media (max-width: 768px) {
  .strategy-content { grid-template-columns: 1fr; }
}

/* === How It Works === */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.step {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
}
.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.step p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.step-connector {
  display: none;
}

@media (max-width: 768px) {
  .steps { grid-template-columns: 1fr; }
}

/* === Linear Integration === */
.linear-pipeline {
  margin-top: 40px;
}
.pipeline-flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
}
.pipeline-stage {
  flex: 1;
  min-width: 180px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 24px 20px;
  text-align: center;
  position: relative;
}
.pipeline-stage:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.pipeline-stage:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.pipeline-stage + .pipeline-stage { border-left: none; }
.pipeline-stage .stage-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}
.pipeline-stage h3 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.pipeline-stage p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.pipeline-stage .arrow-right {
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-solid);
  font-size: 1rem;
  z-index: 1;
}

@media (max-width: 768px) {
  .pipeline-flow {
    flex-direction: column;
  }
  .pipeline-stage:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0; }
  .pipeline-stage:last-child { border-radius: 0 0 var(--radius-md) var(--radius-md); }
  .pipeline-stage + .pipeline-stage { border-left: 1px solid var(--border-color); border-top: none; }
  .pipeline-stage .arrow-right {
    right: 50%;
    top: auto;
    bottom: -8px;
    transform: translateX(50%) rotate(90deg);
  }
}

/* === Feature Management === */
.feature-mgmt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.feature-mgmt-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
}
.feature-mgmt-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 14px;
}
.feature-mgmt-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-mgmt-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === Deep Analysis === */
.analysis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
  align-items: start;
}
.analysis-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.analysis-feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.analysis-feature .af-icon {
  font-size: 1.3rem;
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
}
.analysis-feature h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.analysis-feature p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .analysis-grid { grid-template-columns: 1fr; }
}

/* === Pipeline Note === */
.pipeline-note {
  margin-top: 24px;
  text-align: center;
}
.pipeline-note p {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}
.pipeline-highlight {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08)) !important;
  border-color: rgba(99, 102, 241, 0.3) !important;
}

/* === Privacy === */
.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.privacy-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}
.privacy-card .card-icon {
  font-size: 1.4rem;
  margin-bottom: 12px;
}
.privacy-card h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.privacy-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.privacy-card code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-surface);
  padding: 2px 5px;
  border-radius: 3px;
  color: var(--accent-solid);
}

/* === Analytics & Insights === */
.analytics-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.analytics-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}
.analytics-item .analytics-icon {
  font-size: 1.3rem;
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
}
.analytics-item h3 {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.analytics-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === Try It Live === */
.try-live {
  text-align: center;
}
.try-live-callout {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 32px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.try-live-callout p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.try-live-callout strong {
  color: var(--text-primary);
}

/* === Final CTA === */
.final-cta {
  text-align: center;
  padding: 100px 0 80px;
  position: relative;
}
.final-cta::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
}
.final-cta .subline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  position: relative;
}

/* === Footer === */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
  text-align: center;
}
.footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer a { color: var(--text-secondary); }
.footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

/* === Responsive === */
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero { padding: 110px 0 64px; }
  .waitlist-form { flex-direction: column; }
  .waitlist-form input[type="email"],
  .waitlist-form input[type="text"] { min-width: auto; }
  .problem-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.8rem; }
}