/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0e0e12;
  --bg-card: #16161d;
  --bg-card-hover: #1e1e28;
  --border: #2a2a3a;
  --text: #e4e4ef;
  --text-muted: #9999b0;
  --accent: #7c5cfc;
  --accent-glow: rgba(124,92,252,.25);
  --accent2: #00d4aa;
  --accent3: #ff6b6b;
  --gradient: linear-gradient(135deg, #7c5cfc 0%, #00d4aa 100%);
  --radius: 12px;
  --max-w: 1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent2); }

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

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(14,14,18,.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.5px;
}

.nav-links { display: flex; gap: 8px; align-items: center; list-style: none; }

.nav-links a {
  color: var(--text-muted);
  font-size: .875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all .2s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: rgba(124,92,252,.1);
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown > a::after { content: ' ▾'; font-size: .7em; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  min-width: 200px;
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 8px 16px;
  font-size: .85rem;
  border-radius: 0;
}
.dropdown-menu a:hover { background: rgba(124,92,252,.08); }

/* Hamburger (mobile) */
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ===== HERO ===== */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 24px 60px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  line-height: 1.15;
}
.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: all .25s;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover { background: rgba(124,92,252,.1); color: var(--accent); }

/* ===== SECTION ===== */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 60px 24px;
}
.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.section-sub {
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 600px;
}

/* ===== CARDS GRID ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all .25s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124,92,252,.12);
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: .9rem; }
.card .tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  margin-top: 12px;
  background: rgba(124,92,252,.15);
  color: var(--accent);
}

/* ===== PAGE CONTENT ===== */
.page-header {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 60px 24px 30px;
}
.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.page-header .subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 700px;
}

.content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 60px;
}
.content h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.content h3 { font-size: 1.15rem; margin: 24px 0 10px; color: var(--accent); }
.content p { margin-bottom: 14px; color: var(--text-muted); }
.content ul, .content ol { margin: 0 0 16px 24px; color: var(--text-muted); }
.content li { margin-bottom: 6px; }
.content strong { color: var(--text); }

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 30px;
  font-size: .9rem;
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  color: var(--accent);
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.spec-table tr:hover td { background: rgba(124,92,252,.04); }

/* Comparison highlights */
.winner { color: var(--accent2); font-weight: 600; }
.neutral { color: var(--text-muted); }

/* Info box */
.info-box {
  background: rgba(124,92,252,.08);
  border-left: 3px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}
.info-box p { color: var(--text); margin-bottom: 0; }

/* Prompt example */
.prompt-block {
  background: #1a1a24;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 16px 0 24px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: .85rem;
  color: var(--accent2);
  white-space: pre-wrap;
  line-height: 1.7;
}
.prompt-block .label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* ===== COST CALCULATOR ===== */
.calc-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 30px;
}
.calc-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.calc-result {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group select, .form-group input[type="range"] {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .9rem;
}
.form-group select:focus { border-color: var(--accent); outline: none; }
.range-value {
  font-size: .85rem;
  color: var(--accent);
  font-weight: 600;
  margin-top: 4px;
}
.cost-display {
  text-align: center;
  padding: 20px 0;
}
.cost-display .big-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cost-display .per { color: var(--text-muted); font-size: .9rem; }
.cost-breakdown { margin-top: 20px; }
.cost-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
}
.cost-row .label-text { color: var(--text-muted); }
.cost-row .value { font-weight: 600; }

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .25s;
}
.gallery-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.gallery-thumb {
  height: 180px;
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.gallery-info { padding: 20px; }
.gallery-info h3 { margin-bottom: 6px; }
.gallery-info p { color: var(--text-muted); font-size: .85rem; }
.gallery-tags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.gallery-tags span {
  font-size: .7rem;
  padding: 3px 8px;
  border-radius: 20px;
  background: rgba(0,212,170,.1);
  color: var(--accent2);
  font-weight: 600;
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: .85rem;
}
.footer-links { display: flex; gap: 20px; justify-content: center; margin-bottom: 12px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hamburger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--bg-card);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 16px;
  }
  .dropdown:hover .dropdown-menu { display: block; }
  .calc-container { grid-template-columns: 1fr; }
  .hero { padding: 50px 24px 40px; }
}