/* ── Design Tokens ── */
:root {
  --blue-900: #060F1E;
  --blue-800: #0B1E3D;
  --blue-700: #0B2E6F;
  --blue-600: #0D3D9C;
  --blue-400: #4A9FFF;
  --blue-200: #A8D0FF;
  --accent:   #4A9FFF;
  --text-primary: #0D1117;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --surface: #FAFAFA;
  --surface-2: #F3F4F6;
  --card-bg: #FFFFFF;
  --border: rgba(11, 46, 111, 0.1);
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(11, 46, 111, 0.08);
  --shadow-card-hover: 0 12px 40px rgba(11, 46, 111, 0.15);
  --font-head: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w: 1160px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--surface);
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Utilities ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section { padding: 7rem 0; }
.section-label {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-700);
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.7;
}
.section-header { margin-bottom: 3.5rem; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-700);
  color: #fff;
  border-color: var(--blue-700);
}
.btn-primary:hover {
  background: var(--blue-600);
  border-color: var(--blue-600);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 46, 111, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--blue-700);
  border-color: var(--blue-700);
}
.btn-outline:hover {
  background: var(--blue-700);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-2px);
}
.btn-large { padding: 1rem 2.5rem; font-size: 1.05rem; }

/* ── Navbar ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 0.25rem 0;
}
#navbar.scrolled {
  background: rgba(250, 250, 250, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}
.nav-logo-img { width: 36px; height: 36px; object-fit: contain; content: url('assets/logo_white.svg'); }
#navbar.scrolled .nav-logo-img { content: url('assets/logo.svg'); }
.nav-brand {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  transition: color var(--transition);
}
#navbar.scrolled .nav-brand { color: var(--blue-700); }
.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
  margin-right: 1.5rem;
}
.nav-links a {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
#navbar.scrolled .nav-links a { color: var(--text-secondary); }
#navbar.scrolled .nav-links a:hover,
#navbar.scrolled .nav-links a.active { color: var(--blue-700); }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}
#navbar.scrolled .nav-hamburger span { background: var(--blue-700); }

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--blue-900) 0%, #0B1E3D 50%, #0B2E6F 100%);
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  opacity: 0.55;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 8rem 2rem 6rem;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-400);
  border: 1px solid rgba(74, 159, 255, 0.3);
  background: rgba(74, 159, 255, 0.08);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  color: #fff;
  margin-bottom: 1.75rem;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll-indicator span {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ── Animate-in (hero immediate) ── */
.animate-in {
  animation: fadeSlideUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scroll fade-up ── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Services ── */
.services { background: var(--surface); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  cursor: default;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(11, 46, 111, 0.2);
}
.service-card:nth-child(2) { transition-delay: 0.07s; }
.service-card:nth-child(3) { transition-delay: 0.14s; }
.service-card:nth-child(4) { transition-delay: 0.07s; }
.service-card:nth-child(5) { transition-delay: 0.14s; }
.service-card:nth-child(6) { transition-delay: 0.21s; }
.service-icon {
  width: 48px; height: 48px;
  color: var(--blue-700);
  margin-bottom: 1.25rem;
}
.service-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}
.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── About ── */
.about { background: var(--surface-2); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: center;
}
.about-logo-wrap {
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  aspect-ratio: 1;
}
.about-logo-img { width: 70%; opacity: 0.95; filter: brightness(10); }
.about-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.about-stat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}
.about-stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--blue-700);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.about-stat-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.about-text p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.about-text .section-title { margin-bottom: 1.5rem; }

/* ── Contact ── */
.contact { background: var(--surface); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.contact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-details li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.contact-details li svg {
  width: 18px; height: 18px;
  color: var(--blue-700);
  flex-shrink: 0;
}
.contact-details li a {
  color: var(--blue-700);
  font-weight: 500;
  transition: color var(--transition);
}
.contact-details li a:hover { color: var(--blue-600); text-decoration: underline; }
.contact-cta-box {
  background: linear-gradient(135deg, var(--blue-900) 0%, #0B2E6F 100%);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-cta-box::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(74,159,255,0.15), transparent 70%);
  pointer-events: none;
}
.contact-cta-icon {
  width: 56px; height: 56px;
  margin: 0 auto 1.25rem;
}
.contact-cta-icon img { width: 100%; opacity: 0.9; }
.contact-cta-headline {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}
.contact-cta-sub {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* ── Footer ── */
.footer {
  background: var(--blue-900);
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.footer-logo-img { width: 28px; height: 28px; object-fit: contain; opacity: 0.8; }
.footer-logo span {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}
.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}
.footer-links {
  display: flex;
  gap: 1.5rem;
}
.footer-links a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}
.footer-links a:hover { color: rgba(255,255,255,0.85); }

/* ── Responsive ── */
.hide-sm { display: inline; }

@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .about-logo-wrap { aspect-ratio: auto; padding: 2rem; max-width: 220px; }
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 640px) {
  .section { padding: 5rem 0; }
  .services-grid { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
  .hero-title { font-size: clamp(2.5rem, 12vw, 3.5rem); }
  .nav-links, .nav-cta { display: none; }
  #navbar .btn-outline { display: none; }
  .nav-hamburger { display: flex; }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}