@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

:root {
  --navy: #0D1B2A;
  --navy-mid: #162032;
  --blue: #1565C0;
  --blue-light: #1E88E5;
  --blue-bright: #42A5F5;
  --blue-glow: #64B5F6;
  --accent: #00B0FF;
  --accent-gold: #FFB300;
  --white: #FFFFFF;
  --off-white: #F0F4F8;
  --gray-light: #B0BEC5;
  --gray-mid: #546E7A;
  --text-primary: #E8F0FE;
  --text-secondary: #90A4AE;
  --card-bg: rgba(21, 38, 60, 0.8);
  --card-border: rgba(66, 165, 245, 0.15);
  --card-border-hover: rgba(66, 165, 245, 0.45);
  --gradient-hero: linear-gradient(135deg, #0D1B2A 0%, #0D2748 50%, #0A1628 100%);
  --gradient-blue: linear-gradient(135deg, #1565C0, #42A5F5);
  --gradient-card: linear-gradient(145deg, rgba(21,101,192,0.12), rgba(13,27,42,0.95));
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-blue: 0 0 40px rgba(21, 101, 192, 0.25);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

body.nav-open {
  overflow: hidden;
}

body.nav-open::after {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(8, 14, 22, 0.6);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 1400;
}

/* ---- CIRCUIT PATTERN BACKGROUND ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(66,165,245,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66,165,245,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }

.section-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0,176,255,0.1);
  border: 1px solid rgba(0,176,255,0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white);
  margin-bottom: 16px;
}

.section-title span { color: var(--blue-bright); }

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.8;
}

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

section { position: relative; z-index: 1; }

/* ---- NAVBAR ---- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  padding: 20px 0;
  transition: var(--transition);
}

nav.scrolled {
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(66,165,245,0.1);
  padding: 14px 0;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

nav.menu-open {
  background: rgba(13, 27, 42, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(66,165,245,0.1);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo img {
  height: 44px;
  width: auto;
  filter: brightness(1.1);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--white); }
.nav-links a.active::after { width: 100%; }

.nav-cta {
  background: var(--gradient-blue);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 500 !important;
  box-shadow: 0 4px 16px rgba(21,101,192,0.4);
  transition: var(--transition) !important;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(21,101,192,0.5) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-blue);
  color: var(--white);
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(21,101,192,0.4);
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(21,101,192,0.55);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--blue-bright);
  text-decoration: none;
  padding: 13px 32px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1.5px solid rgba(66,165,245,0.4);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.btn-outline:hover {
  border-color: var(--blue-bright);
  background: rgba(66,165,245,0.08);
  transform: translateY(-2px);
}

/* ---- CARDS ---- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-blue);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--shadow-blue);
}

.card:hover::before { opacity: 1; }

/* ---- SECTION HEADER ---- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ---- DIVIDER ---- */
.divider-line {
  width: 60px;
  height: 3px;
  background: var(--gradient-blue);
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ---- FOOTER ---- */
footer {
  background: #070F18;
  border-top: 1px solid rgba(66,165,245,0.1);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand img { height: 44px; margin-bottom: 16px; filter: brightness(1.1); }

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 280px;
  margin-bottom: 24px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(66,165,245,0.1);
  border: 1px solid rgba(66,165,245,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-bright);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.social-btn:hover {
  background: var(--blue);
  border-color: var(--blue);
  transform: translateY(-3px);
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 20px;
}

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

.footer-links li { margin-bottom: 12px; }

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '›';
  color: var(--accent);
  font-size: 1rem;
  opacity: 0;
  transition: var(--transition);
}

.footer-links a:hover { color: var(--white); padding-left: 4px; }
.footer-links a:hover::before { opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(66,165,245,0.08);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.85rem; color: var(--text-secondary); }

.footer-bottom span { color: var(--accent); }

/* ---- ANIMATIONS ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* ---- PAGE HERO (inner pages) ---- */
.page-hero {
  background: var(--gradient-hero);
  padding: 140px 0 80px;
  text-align: center;
  border-bottom: 1px solid rgba(66,165,245,0.1);
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(21,101,192,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); color: var(--white); margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb span { color: var(--text-secondary); }

/* ---- STAT NUMBER ---- */
.stat-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

/* ---- ICON BOX ---- */
.icon-box {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(21,101,192,0.15);
  border: 1px solid rgba(66,165,245,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--blue-bright);
  margin-bottom: 20px;
  transition: var(--transition);
}

.card:hover .icon-box {
  background: rgba(21,101,192,0.3);
  border-color: rgba(66,165,245,0.5);
  box-shadow: 0 0 20px rgba(21,101,192,0.3);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(78vw, 320px);
    background: rgba(13,27,42,0.98);
    z-index: 1500;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 18px;
    padding: 88px 22px 28px;
    box-shadow: -12px 0 32px rgba(0,0,0,0.45);
  }
  .nav-links.open li { width: 100%; }
  .nav-links a {
    font-size: 1.05rem;
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
  }
  .nav-links a:hover { background: rgba(66,165,245,0.08); }
  .nav-cta { width: 100%; text-align: center; }
  .hamburger { display: flex; z-index: 2001; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 600px) {
  .container { padding: 0 18px; }
  .page-hero { padding: 120px 0 64px; }
  .section-header { margin-bottom: 48px; }
}