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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: #0a1628;
  color: #f1f5f9;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== Custom Properties ===== */
:root {
  /* Colors */
  --bg-deep: #0a1628;
  --bg-slate: #1a2744;
  --bg-card: #0f1d32;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border: #1e3a5f;

  /* Spacing */
  --section-padding: 80px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;

  /* Typography */
  --font-xs: 0.75rem;
  --font-sm: 0.8125rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 2rem;
  --font-4xl: 2.5rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

img {
  max-width: 100%;
  display: block;
}

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

.section {
  padding: var(--section-padding);
}

.section-label {
  color: var(--accent);
  font-size: var(--font-xs);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: var(--font-3xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-lg);
  max-width: 600px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: var(--font-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: inherit;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: #60a5fa;
  color: #60a5fa;
  transform: translateY(-1px);
}

/* ===== Navigation ===== */
.page-content {
  position: relative;
  z-index: 1;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.nav-logo-text {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.5px;
}

.nav-logo-img {
  height: 24px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: var(--font-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: color 0.2s;
}

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

.nav-links .btn-outline {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  padding: 6px 16px;
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

.nav-links .btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
}

/* ===== Code Background (global) ===== */
.code-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.code-bg-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-all;
  color: #4ade80;
  padding: 0;
  text-align: right;
  animation: scrollCode 90s linear infinite;
}

@keyframes scrollCode {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
  background: linear-gradient(rgba(10, 22, 40, 0.75), rgba(10, 22, 40, 0.85)),
              url('../assets/images/hero-bg.jpg') center/cover no-repeat;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-sectors {
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: var(--font-4xl);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 600px;
  background: linear-gradient(135deg, #f1f5f9 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
}

/* ===== Stats Bar ===== */
.stats {
  display: flex;
  gap: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}

.stat-value {
  color: var(--accent);
  font-size: var(--font-2xl);
  font-weight: 700;
}

.stat-label {
  color: var(--text-muted);
  font-size: var(--font-xs);
  margin-top: 4px;
}

/* ===== Sector Cards ===== */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.sector-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.sector-card:hover {
  border-color: var(--accent);
  background: var(--bg-card);
  color: inherit;
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.1);
}

.sector-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 10px;
}

.sector-card-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sector-card-number {
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.sector-card h3 {
  font-size: var(--font-base);
  font-weight: 600;
  margin-bottom: 8px;
}

.sector-card p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.5;
}

/* ===== Case Study Cards ===== */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  transition: border-color 0.2s;
}

a.case-study-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.case-study-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.1);
}

a.case-study-card:hover {
  color: inherit;
}

.case-study-image {
  height: 140px;
  border-radius: 6px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.case-study-image svg {
  width: 48px;
  height: 48px;
  opacity: 0.5;
}

.case-study-image img {
  max-height: 60px;
  max-width: 160px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.7;
}

.case-study-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tag {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

.tag-defence { background: #1e3a5f; color: #60a5fa; }
.tag-medical { background: #14532d; color: #4ade80; }
.tag-gaming { background: #713f12; color: #fbbf24; }
.tag-ai { background: #3b0764; color: #c084fc; }
.tag-iot { background: #44403c; color: #a8a29e; }

.case-study-card h3 {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

.case-study-card p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.5;
  margin-bottom: 16px;
}

.case-study-metric {
  color: var(--accent);
  font-size: var(--font-sm);
  font-weight: 600;
}

/* ===== Filter Bar ===== */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: var(--font-xs);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
}

/* ===== Tech Strip ===== */
.tech-strip {
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tech-item {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 6px;
  transition: border-color 0.2s;
}

.tech-item:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: 80px 0;
  background: linear-gradient(rgba(10, 22, 40, 0.85), rgba(10, 22, 40, 0.9)),
              url('../assets/images/cta-bg.jpg') center/cover no-repeat;
}

.cta-section h2 {
  font-size: var(--font-3xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: var(--font-lg);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.6;
  margin-top: 12px;
}

.footer h4 {
  font-size: var(--font-sm);
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: var(--font-xs);
}

/* ===== Sector Page ===== */
.sector-hero {
  padding: 140px 0 60px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(rgba(10, 22, 40, 0.8), rgba(10, 22, 40, 0.9)),
              var(--sector-bg) center/cover no-repeat;
}

.sector-hero h1 {
  font-size: var(--font-4xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.sector-hero p {
  color: var(--text-secondary);
  font-size: var(--font-lg);
  max-width: 600px;
  margin-bottom: 24px;
}

.sector-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sector-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: var(--font-xs);
}

/* Capabilities */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.capability {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.capability h3 {
  font-size: var(--font-base);
  font-weight: 600;
  margin-bottom: 8px;
}

.capability p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.5;
}

/* Sector tech stack */
.tech-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tech-badge {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
}

/* ===== About Page ===== */
.about-intro {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-intro h2 {
  font-size: var(--font-3xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.about-intro p {
  color: var(--text-secondary);
  font-size: var(--font-base);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-stats {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}

.about-stats .stat {
  margin-bottom: 20px;
}

.about-stats .stat:last-child {
  margin-bottom: 0;
}

.team-section h2 {
  font-size: var(--font-2xl);
  font-weight: 700;
  margin-bottom: 24px;
}

.founder-card {
  display: flex;
  gap: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  align-items: start;
}

.founder-photo {
  width: 140px;
  height: 140px;
  background: linear-gradient(135deg, var(--bg-slate) 0%, #1e3a5f 100%);
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: var(--font-xs);
  border: 1px solid var(--border);
}

.founder-photo svg {
  width: 48px;
  height: 48px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.5;
}

.founder-info h3 {
  font-size: var(--font-xl);
  font-weight: 600;
  margin-bottom: 4px;
}

.founder-info .role {
  color: var(--accent);
  font-size: var(--font-sm);
  margin-bottom: 12px;
}

.founder-info p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.6;
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-form label {
  display: block;
  color: var(--text-secondary);
  font-size: var(--font-sm);
  margin-bottom: 6px;
  font-weight: 500;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: 4px;
  font-family: inherit;
  font-size: var(--font-base);
  margin-bottom: 20px;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-info-block {
  margin-bottom: 28px;
}

.contact-info-block h3 {
  font-size: var(--font-base);
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-info-block p,
.contact-info-block a {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.6;
}

/* ===== Blog ===== */
.blog-list {
  display: grid;
  gap: 24px;
}

.blog-card {
  display: flex;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
  text-decoration: none;
  color: inherit;
}

.blog-card:hover {
  border-color: var(--accent);
  color: inherit;
}

.blog-card-image {
  height: 160px;
  border-radius: 6px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
}

.blog-hero-image {
  width: 100%;
  height: 300px;
  border-radius: 8px;
  margin-bottom: 32px;
  background-size: cover;
  background-position: center;
}

.blog-card-image svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.blog-card h3 {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

.blog-card p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  line-height: 1.5;
}

.blog-card .blog-meta {
  color: var(--text-muted);
  font-size: var(--font-xs);
  margin-top: 8px;
}

/* ===== Policy Pages ===== */
.policy-content {
  max-width: 720px;
  padding: 140px 0 80px;
}

.policy-content h1 {
  font-size: var(--font-3xl);
  font-weight: 700;
  margin-bottom: 32px;
}

.policy-content h2 {
  font-size: var(--font-xl);
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.policy-content p {
  color: var(--text-secondary);
  font-size: var(--font-base);
  line-height: 1.7;
  margin-bottom: 16px;
}

.policy-content ul {
  color: var(--text-secondary);
  padding-left: 24px;
  margin-bottom: 16px;
}

.policy-content li {
  margin-bottom: 8px;
  font-size: var(--font-base);
  line-height: 1.6;
}

/* ===== OSS Section ===== */
.oss-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.oss-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s;
}

.oss-card:hover {
  border-color: var(--accent);
  color: inherit;
}

.oss-card h3 {
  font-size: var(--font-base);
  font-weight: 600;
  margin-bottom: 4px;
}

.oss-card p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
}

.oss-card .oss-link {
  color: var(--text-muted);
  font-size: var(--font-xs);
  margin-top: 8px;
  display: block;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .sector-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .case-study-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-intro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 48px 0;
    --font-4xl: 2rem;
    --font-3xl: 1.5rem;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-deep);
    flex-direction: column;
    padding: 32px 24px;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: 120px 0 48px;
  }

  .stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .stat {
    min-width: 120px;
  }

  .sector-grid {
    grid-template-columns: 1fr;
  }

  .case-study-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 8px;
  }

  .hero-buttons .btn {
    text-align: center;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
  }

  .oss-grid {
    grid-template-columns: 1fr;
  }

  .founder-card {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .tech-strip {
    gap: 16px;
  }
}