/* ========== CSS VARIABLES ========== */
:root {
  --bg-dark: #0a1f44;
  --bg-darker: #000000;
  --primary: #1e90ff;
  --primary-dark: #0c6bdf;
  --success: #28a745;
  --text-light: #ffffff;
  --text-muted: #d0d0d0;
  --glass-bg: rgba(255,255,255,0.08);
  --border-glass: rgba(255,255,255,0.08);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* HEADER */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 30px;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 10px;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
  transform: translateY(-2px);
}

/* HERO */
.hero {
  position: relative;
  padding: 180px 20px 120px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(30,144,255,0.15), transparent 40%),
              radial-gradient(circle at bottom right, rgba(0,255,170,0.12), transparent 35%);
  z-index: -1;
}

.tag {
  display: inline-block;
  margin-bottom: 25px;
  color: var(--text-muted);
  font-size: 14px;
  letter-spacing: 2px;
}

.hero h1 {
  font-size: 64px;
  line-height: 1.2;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero p {
  max-width: 750px;
  margin: 0 auto;
  font-size: 18px;
  color: var(--text-muted);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 35px;
  flex-wrap: wrap;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: inline-block;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-secondary {
  background: var(--success);
  color: white;
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-3px);
  filter: brightness(1.05);
}

.btn-primary::before,
.btn-secondary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.2);
  transition: 0.5s;
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
  left: 100%;
}

/* STATS */
.stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  padding: 40px 20px;
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 15px;
  padding: 30px;
  min-width: 180px;
  text-align: center;
  transition: var(--transition);
  box-shadow: 0 8px 25px rgba(0,0,0,0.25);
}

.stat-card:hover {
  transform: translateY(-8px);
  border-color: rgba(30,144,255,0.4);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}

.stat-card h2 {
  font-size: 36px;
  color: var(--primary);
}

/* SERVICES */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 15px;
  padding: 30px;
  transition: var(--transition);
  box-shadow: 0 8px 25px rgba(0,0,0,0.25);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(30,144,255,0.4);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}

.service-card h3 {
  margin-bottom: 15px;
  color: var(--primary);
}

/* ABOUT */
.about {
  background: rgba(0,0,0,0.25);
  text-align: center;
  padding: 80px 20px;
}

.about-content {
  max-width: 800px;
  margin: auto;
}

.about-content span {
  color: var(--primary);
  letter-spacing: 2px;
}

.about-content h2 {
  font-size: 44px;
  margin: 20px 0;
}

.about a.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 14px 28px;
  border-radius: 6px;
  text-decoration: none;
  transition: var(--transition);
}

.about a.btn-primary:hover {
  background: var(--success);
  transform: scale(1.05);
}

/* CONTACT */
.contact {
  background: var(--bg-darker);
  padding: 80px 20px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 550px;
  margin: auto;
}

form input,
form textarea {
  padding: 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 16px;
  background: rgba(255,255,255,0.08);
  color: white;
  transition: var(--transition);
  outline: none;
}

form input:focus,
form textarea:focus {
  border-color: var(--primary);
  background: rgba(255,255,255,0.12);
}

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

form button {
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

form button:hover {
  background: var(--success);
  transform: translateY(-2px);
}

/* FOOTER */
footer {
  text-align: center;
  padding: 25px;
  background: rgba(0,0,0,0.6);
  font-size: 14px;
  color: #ccc;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* SECTIONS */
section {
  padding: 80px 20px;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title span {
  color: var(--primary);
  font-size: 14px;
  letter-spacing: 2px;
}

.section-title h2 {
  font-size: 42px;
  margin-top: 10px;
}

/* ANIMATIONS */
html {
  scroll-behavior: smooth;
}

.hero-content {
  animation: fadeUp 1s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 15px;
    padding: 15px;
  }
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }
  .nav-links a {
    font-size: 13px;
  }
  .logo-img {
    width: 42px;
    height: 42px;
  }
  .brand-name {
    font-size: 18px;
  }
  .hero {
    padding-top: 220px;
    padding-bottom: 80px;
  }
  .hero h1 {
    font-size: 42px;
  }
  .hero p {
    font-size: 16px;
  }
  .section-title h2 {
    font-size: 32px;
  }
  .about-content h2 {
    font-size: 34px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .service-card:hover,
  .stat-card:hover {
    transform: translateY(-4px);
  }
  .hero::before {
    opacity: 0.7;
  }
}