/* ========================================
   HEADER / NAVIGATION
   ======================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(7, 12, 24, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.site-header.scrolled {
  border-bottom-color: var(--bg-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-1);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-1);
}

.nav-cta {
  margin-left: 8px;
}

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

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-1);
  border-radius: 2px;
  transition: transform 0.2s;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
  background-color: var(--bg-deep);
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(7, 12, 24, 0.95) 0%,
    rgba(7, 12, 24, 0.7) 50%,
    rgba(7, 12, 24, 0.4) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.hero-content {
  max-width: 560px;
}

.hero-content .tag {
  margin-bottom: 20px;
}

.hero-content h1 {
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-1) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-2);
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--bg-border);
  box-shadow:
    0 0 60px rgba(37, 99, 235, 0.12),
    0 20px 60px rgba(0, 0, 0, 0.4);
}

.hero-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: -1;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 60px 0;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-content h1 {
    background: none;
    -webkit-text-fill-color: var(--text-1);
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    max-width: 600px;
    margin: 0 auto;
  }

  .nav-links {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }
}

@media (max-width: 600px) {
  .hero {
    min-height: auto;
    padding-top: 72px;
  }

  .hero-inner {
    padding: 40px 0;
  }

  .hero-content .hero-subtitle {
    font-size: 1rem;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
    max-width: 320px;
  }
}