/*
  Arkh's Media Portal
  - Pure CSS dark-theme responsive layout
  - Card-based service section with subtle interactions
*/

:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1f2630;
  --text: #e6edf3;
  --muted: #9da7b3;
  --primary: #58a6ff;
  --primary-hover: #79b8ff;
  --secondary: #c084fc;
  --accent: #22d3ee;
  --border: #2d3748;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 15%, rgba(192, 132, 252, 0.22), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(34, 211, 238, 0.2), transparent 36%),
    radial-gradient(circle at top, #111827 0%, var(--bg) 45%);
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 17, 23, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
}

.site-title {
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.nav-list a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--text);
}

.hero {
  padding: 5.5rem 0 3.5rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.25rem;
  align-items: center;
}

.hero-content {
  max-width: 760px;
}

.hero-art {
  display: flex;
  justify-content: center;
}

.hero-art img {
  width: min(100%, 360px);
  border-radius: 20px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(121, 184, 255, 0.28);
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  margin-bottom: 0.5rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: 0.75rem;
}

.hero p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.services {
  padding: 2rem 0 4rem;
}

.services h2 {
  margin-bottom: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.3rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(121, 184, 255, 0.65);
  box-shadow: 0 14px 34px rgba(88, 166, 255, 0.12);
}

.card p {
  color: var(--muted);
}

.btn {
  display: inline-block;
  padding: 0.65rem 1rem;
  border: 1px solid #3f4f67;
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--primary-hover);
  background-color: rgba(88, 166, 255, 0.16);
  transform: translateY(-1px);
}

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

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 1.5rem 0;
}

.site-footer p {
  margin: 0.2rem 0;
}

@media (max-width: 860px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
  }

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

  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}