/* ============================================
   CATALYST AI — Enterprise AI Platform
   Deep Space Dark Mode Design System
   ============================================ */

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

:root {
  --bg-primary: #08080f;
  --bg-card: #12121f;
  --bg-card-hover: #1a1a2f;
  --cyan: #06b6d4;
  --cyan-glow: rgba(6, 182, 212, 0.4);
  --violet: #a78bfa;
  --violet-glow: rgba(167, 139, 250, 0.3);
  --text-primary: #f0f0f5;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(6, 182, 212, 0.15);
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-body: system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Scroll Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(8, 8, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.nav-dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
  box-shadow: 0 0 12px var(--cyan-glow);
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  letter-spacing: 0.3px;
}
.nav-links a:hover { color: var(--text-primary); }

.btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--cyan);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  border: none;
  transition: all var(--transition);
  box-shadow: 0 0 20px var(--cyan-glow);
}
.btn-demo:hover {
  background: #22d3ee;
  box-shadow: 0 0 30px var(--cyan-glow), 0 4px 20px rgba(6, 182, 212, 0.25);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orb-float 12s ease-in-out infinite;
}
.hero-orb--cyan {
  width: 500px; height: 500px;
  top: 10%; right: 10%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25) 0%, transparent 70%);
  animation-delay: 0s;
}
.hero-orb--violet {
  width: 600px; height: 600px;
  bottom: 0%; left: 5%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.15) 0%, transparent 70%);
  animation-delay: -4s;
}
.hero-orb--small {
  width: 300px; height: 300px;
  top: 50%; left: 40%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  animation-delay: -8s;
}
@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}
.hero-label-dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  max-width: 750px;
  margin-bottom: 24px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 40px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.03);
}

.hero-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.hero-badge strong {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--cyan);
}

/* ---------- Section Spacing ---------- */
section {
  padding: 120px 24px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header .section-sub { margin: 0 auto; }

/* ---------- Integrations Grid ---------- */
.integrations {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.integration-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.integration-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px 20px;
  background: var(--bg-card);
  transition: background var(--transition);
}
.integration-item:hover { background: var(--bg-card-hover); }
.integration-icon {
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all var(--transition);
}
.integration-item:hover .integration-icon {
  color: var(--cyan);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.1);
}
.integration-name {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- Features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.code-block {
  background: #0d0d18;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 24px;
  overflow-x: auto;
}
.code-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 14px;
}
.code-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.code-dot--red { background: #ef4444; }
.code-dot--yellow { background: #eab308; }
.code-dot--green { background: #22c55e; }

.code-content {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--text-secondary);
}
.code-content .kw { color: var(--violet); }
.code-content .fn { color: var(--cyan); }
.code-content .str { color: #34d399; }
.code-content .cm { color: var(--text-muted); font-style: italic; }
.code-content .num { color: #f59e0b; }

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- Metrics ---------- */
.metrics {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.metrics-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(6,182,212,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,182,212,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}
.metric-item {
  text-align: center;
  padding: 32px 16px;
}
.metric-value {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 8px;
  letter-spacing: -1px;
}
.metric-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- How It Works ---------- */
.steps-container {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.steps-line {
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan), var(--violet), transparent);
  opacity: 0.4;
}
.step {
  display: flex;
  gap: 32px;
  padding-bottom: 56px;
  position: relative;
}
.step:last-child { padding-bottom: 0; }
.step-icon {
  width: 50px; height: 50px;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  background: var(--bg-card);
  border: 2px solid rgba(6, 182, 212, 0.3);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.1);
}
.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: all var(--transition);
  position: relative;
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.pricing-card--featured {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 40px rgba(6, 182, 212, 0.08);
}
.pricing-card--featured::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}
.pricing-badge {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.pricing-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.pricing-price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}
.pricing-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
  line-height: 1.6;
}
.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}
.pricing-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.pricing-features li::before {
  content: '✓';
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.85rem;
}
.btn-pricing {
  display: block;
  width: 100%;
  padding: 12px;
  text-align: center;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  transition: all var(--transition);
}
.btn-pricing:hover {
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.03);
}
.btn-pricing--cyan {
  background: var(--cyan);
  color: var(--bg-primary);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
}
.btn-pricing--cyan:hover {
  background: #22d3ee;
  box-shadow: 0 0 30px var(--cyan-glow);
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  overflow: hidden;
}
.cta-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 80px 40px;
  text-align: center;
  overflow: hidden;
}
.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}
.cta-orb--1 {
  width: 300px; height: 300px;
  top: -100px; right: -50px;
  background: radial-gradient(circle, rgba(6,182,212,0.15), transparent);
}
.cta-orb--2 {
  width: 250px; height: 250px;
  bottom: -80px; left: -30px;
  background: radial-gradient(circle, rgba(167,139,250,0.12), transparent);
}
.cta-box h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
}
.cta-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.cta-form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto;
  position: relative;
}
.cta-form input {
  flex: 1;
  padding: 14px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}
.cta-form input::placeholder { color: var(--text-muted); }
.cta-form input:focus { border-color: rgba(6,182,212,0.4); }

/* ---------- Footer ---------- */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-left {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: #22c55e;
  font-weight: 500;
}
.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-primary); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(8, 8, 15, 0.96);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  section { padding: 80px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .integration-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-badges { flex-direction: column; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn-demo,
  .hero-btns .btn-secondary { width: 100%; justify-content: center; }
  .cta-form { flex-direction: column; }
  .cta-box { padding: 60px 24px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-left { flex-direction: column; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .integration-grid { grid-template-columns: 1fr 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
}