/* ===== Variables ===== */
:root {
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-dark: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.3);

  --bg: #0a0a0f;
  --bg-alt: #0f0f18;
  --bg-card: #14141f;
  --bg-card-hover: #1a1a2a;
  --border: #1e1e30;
  --border-light: #2a2a40;

  --text: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;

  --success: #10b981;
  --danger: #ef4444;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);

  --transition: 0.2s ease;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
}

.section-alt {
  background: var(--bg-alt);
}

/* ===== Typography ===== */
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1.1rem; font-weight: 600; }

.gradient-text {
  background: linear-gradient(135deg, var(--accent-light), #a78bfa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Section Headers ===== */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-light);
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-top: 16px;
  line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-sm { font-size: 0.875rem; padding: 8px 20px; }
.btn-lg { font-size: 1rem; padding: 14px 32px; }

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.nav-actions { display: flex; align-items: center; gap: 12px; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: var(--accent);
  top: -200px;
  right: -100px;
  opacity: 0.15;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: #a78bfa;
  bottom: -100px;
  left: -100px;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-light);
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.15);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 24px auto 0;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 40px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.metric { text-align: center; }
.metric-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-light);
}
.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.metric-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ===== Problem Section ===== */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}

.problem-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.problem-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  color: var(--accent-light);
}

.problem-card h3 { margin-bottom: 12px; }
.problem-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* Architecture Diagram */
.problem-visual {
  display: flex;
  align-items: center;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.problem-visual-stacked {
  flex-direction: column;
  align-items: stretch;
  max-width: 700px;
  margin: 0 auto;
}

.problem-visual-stacked .arch-diagram {
  max-width: 100%;
  min-width: auto;
}

.arch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  flex: 1;
  min-width: 300px;
  max-width: 460px;
}

.arch-diagram.highlight {
  border-color: var(--accent);
  box-shadow: 0 0 32px var(--accent-glow);
}

.arch-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.arch-node {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.arch-node span {
  font-weight: 400;
  font-size: 0.75rem;
  opacity: 0.7;
}

.arch-cpu {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: #fca5a5;
}

.arch-asic {
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--accent-light);
}

.arch-unified {
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--accent-light);
  padding: 24px 40px;
}

.arch-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.arch-caption {
  margin-top: 20px;
  font-size: 0.8rem;
}

.arch-caption.bad { color: #fca5a5; }
.arch-caption.good { color: var(--success); }

.arch-vs {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  text-align: center;
  width: 100%;
}

/* ===== Solution Section ===== */
.solution-layers {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.layer {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.layer:last-child { border-bottom: none; }

.layer-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.4;
  min-width: 60px;
  font-family: 'JetBrains Mono', monospace;
}

.layer-content h3 { margin-bottom: 8px; }
.layer-content p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== Technology Section ===== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.tech-card.featured-half {
  grid-column: span 3;
}

.tech-card:not(.featured-half) {
  grid-column: span 2;
}

.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}

.tech-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.tech-card.featured {
  grid-column: 1 / -1;
  border-color: var(--accent);
  background: rgba(99,102,241,0.04);
}

.tech-card.featured-half {
  border-color: var(--accent);
  background: rgba(99,102,241,0.04);
}

.tech-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-light);
  margin-bottom: 12px;
}

.tech-card h3 { margin-bottom: 10px; }
.tech-card p { color: var(--text-secondary); font-size: 0.9rem; }

.tech-card-link {
  display: flex;
  flex-direction: column;
}

.tech-link-arrow {
  margin-top: auto;
  padding-top: 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-light);
  transition: color var(--transition);
}

.tech-card-link:hover .tech-link-arrow { color: var(--text); }

.tech-detail {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.tech-detail code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent-light);
}

/* ===== Demo Section ===== */
.demo-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.demo-card-main {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.demo-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border);
}

.demo-dots { display: flex; gap: 6px; }
.demo-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-light);
}
.demo-dots span:first-child { background: #ef4444; }
.demo-dots span:nth-child(2) { background: #eab308; }
.demo-dots span:last-child { background: #22c55e; }

.demo-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.demo-body { padding: 28px; }

.demo-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.demo-feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.demo-feature-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.1);
  border-radius: var(--radius-sm);
  color: var(--accent-light);
  flex-shrink: 0;
}

.demo-feature strong { display: block; margin-bottom: 2px; font-size: 0.95rem; }
.demo-feature p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }

.demo-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.demo-cta .btn { white-space: nowrap; min-width: max-content; padding: 14px 36px; }

.demo-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-content: start;
}

.demo-card-sm {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.demo-card-sm:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.demo-card-sm h4 { margin-bottom: 6px; }
.demo-card-sm p { color: var(--text-secondary); font-size: 0.85rem; flex: 1; }

.demo-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-top: 12px;
}

/* Publications */
.demo-publications {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.demo-publications h3 { margin-bottom: 20px; }

.pub-list { display: flex; flex-direction: column; gap: 12px; }

.pub-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.pub-item:last-child { border-bottom: none; }

.pub-venue {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  background: rgba(99,102,241,0.1);
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.pub-title {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.pub-item-link {
  text-decoration: none;
  transition: background var(--transition);
  border-radius: var(--radius-sm);
  padding-left: 12px;
  padding-right: 12px;
}

.pub-item-link:hover {
  background: var(--bg-card-hover);
}

.pub-item-link:hover .pub-title {
  color: var(--accent-light);
}

/* ===== Landscape ===== */
.landscape-table-wrapper {
  overflow-x: auto;
  margin-bottom: 32px;
}

.landscape-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.landscape-table th {
  text-align: left;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.landscape-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.landscape-table .row-highlight {
  background: rgba(99,102,241,0.06);
}

.landscape-table .row-highlight td {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  white-space: nowrap;
}

.tag-control {
  background: rgba(239,68,68,0.1);
  color: #fca5a5;
}

.tag-execution {
  background: rgba(99,102,241,0.15);
  color: var(--accent-light);
}

.landscape-insight {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.insight-icon { color: var(--accent-light); flex-shrink: 0; margin-top: 2px; }

/* ===== Customer Section ===== */
.customer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.customer-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}

.customer-card:hover {
  border-color: var(--border-light);
}

.customer-card h3 { margin-bottom: 4px; }
.customer-card p { color: var(--text-muted); font-size: 0.85rem; }

.customer-note {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Team Section ===== */
.team-grid {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.team-card {
  text-align: center;
  width: 200px;
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 2px solid var(--border);
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h4 { margin-bottom: 4px; }
.team-card p { color: var(--text-muted); font-size: 0.85rem; }

.team-avatar-link {
  display: block;
  transition: opacity var(--transition);
}
.team-avatar-link:hover { opacity: 0.8; }
.team-avatar-link:hover .team-avatar { border-color: var(--accent); }

.team-name-link {
  transition: color var(--transition);
}
.team-name-link:hover { color: var(--accent-light); }
.team-name-link h4 { border-bottom: 1px solid transparent; display: inline; transition: border-color var(--transition); }
.team-name-link:hover h4 { border-bottom-color: var(--accent-light); }

/* ===== CTA Section ===== */
.section-cta {
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(167,139,250,0.06));
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 100px 0;
}

.section-cta h2 { margin-bottom: 16px; }
.section-cta p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .problem-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-card.featured-half { grid-column: span 1; }
  .tech-card:not(.featured-half) { grid-column: span 1; }
  .demo-showcase { grid-template-columns: 1fr; }
  .customer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 16px;
  }

  .mobile-toggle { display: block; }

  .hero-metrics { flex-direction: column; gap: 20px; }
  .metric-divider { width: 40px; height: 1px; }

  .tech-grid { grid-template-columns: 1fr; }
  .tech-card.featured-half { grid-column: span 1; }
  .tech-card:not(.featured-half) { grid-column: span 1; }
  .demo-cards-grid { grid-template-columns: 1fr; }
  .customer-grid { grid-template-columns: 1fr; }

  .layer { flex-direction: column; gap: 12px; }

  .landscape-table { font-size: 0.8rem; }
  .landscape-table th, .landscape-table td { padding: 10px 12px; }

  .footer-content { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }

  .hero-ctas { flex-direction: column; align-items: center; }
}