:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --bg-card: #151e2e;
  --bg-card-hover: #1a2538;
  --border: #1f2d42;
  --border-light: #2a3d52;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --green: #22c55e;
  --green-dim: rgba(34,197,94,0.12);
  --orange: #f59e0b;
  --orange-dim: rgba(245,158,11,0.12);
  --red: #ef4444;
  --red-dim: rgba(239,68,68,0.12);
  --blue: #3b82f6;
  --blue-dim: rgba(59,130,246,0.12);
  --cyan: #06b6d4;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --transition: all 0.25s 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);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex; flex-direction: column;
}

a { color: var(--blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--cyan); }

/* ==================================================
   NAVBAR
   ================================================== */
.site-nav {
  background: rgba(17,24,39,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.nav-inner {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 68px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.15rem; color: #fff; letter-spacing: 0.03em;
}
.nav-logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--green), #16a34a);
  box-shadow: 0 0 14px rgba(34,197,94,0.3);
  transition: var(--transition);
}
.nav-brand:hover .nav-logo { transform: scale(1.08); box-shadow: 0 0 20px rgba(34,197,94,0.4); }
.nav-title { color: #fff; }

.nav-menu {
  display: flex; align-items: center; gap: 6px;
  list-style: none;
}
.nav-item { position: relative; }
.nav-link {
  display: block; padding: 8px 14px; border-radius: 8px;
  color: var(--text-muted); font-size: 0.84rem; font-weight: 500;
  cursor: pointer; transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: #fff; background: rgba(255,255,255,0.06);
}
.nav-item.active > .nav-link { color: #fff; background: rgba(255,255,255,0.06); }

/* Dropdown */
.has-dropdown .dropdown {
  position: absolute; top: 100%; left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 220px;
  padding: 8px;
  list-style: none;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
}
.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a {
  display: block; padding: 9px 14px; border-radius: 8px;
  color: var(--text-muted); font-size: 0.83rem; transition: var(--transition);
}
.dropdown li a:hover, .dropdown li a.active {
  background: rgba(255,255,255,0.06); color: #fff;
}

/* Mobile toggle */
.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 1px; transition: var(--transition); }

/* ==================================================
   FOOTER
   ================================================== */
.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 40px; padding: 60px 24px 40px;
}
.footer-col h4 {
  font-size: 0.85rem; font-weight: 600; color: #fff;
  margin-bottom: 18px; letter-spacing: 0.04em;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-muted); font-size: 0.84rem; transition: var(--transition); }
.footer-col a:hover { color: var(--text); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px; text-align: center;
  font-size: 0.78rem; color: var(--text-dim);
}

/* ==================================================
   HERO / PAGE HEADER
   ================================================== */
.page-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #111827 100%);
  border-bottom: 1px solid var(--border);
  padding: 70px 24px 55px;
  text-align: center;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(59,130,246,0.06) 0%, transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(34,197,94,0.04) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero h1 {
  font-size: 2.6rem; font-weight: 800; color: #fff;
  margin-bottom: 12px; letter-spacing: -0.03em;
  position: relative;
}
.page-hero p {
  font-size: 1.05rem; color: var(--text-muted); max-width: 640px; margin: 0 auto;
  position: relative; line-height: 1.6;
}

/* ==================================================
   SECTIONS
   ================================================== */
.section {
  max-width: 1200px; margin: 0 auto;
  padding: 60px 24px;
}
.section-title {
  font-size: 1.7rem; font-weight: 700; color: #fff;
  margin-bottom: 10px; letter-spacing: -0.02em;
}
.section-subtitle {
  font-size: 0.95rem; color: var(--text-muted); margin-bottom: 36px;
  line-height: 1.6;
}

/* ==================================================
   CARDS
   ================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  opacity: 0;
  transition: opacity 0.3s;
}
.card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  background: var(--bg-card-hover);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 18px;
  background: var(--blue-dim); color: var(--blue);
  transition: var(--transition);
}
.card:hover .card-icon { transform: scale(1.1); }
.card h3 {
  font-size: 1.05rem; font-weight: 600; color: #fff; margin-bottom: 8px;
}
.card p {
  font-size: 0.88rem; color: var(--text-muted); line-height: 1.6;
}

/* ==================================================
   FEATURE LIST
   ================================================== */
.feature-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px;
}
.feature-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
  transition: var(--transition);
}
.feature-item:hover {
  border-color: var(--border-light);
  transform: translateX(4px);
  background: var(--bg-card-hover);
}
.feature-bullet {
  width: 10px; height: 10px; border-radius: 50%; background: var(--green);
  margin-top: 8px; flex-shrink: 0; box-shadow: 0 0 10px var(--green);
}
.feature-item h4 { font-size: 0.96rem; font-weight: 600; color: #fff; margin-bottom: 5px; }
.feature-item p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.55; }

/* ==================================================
   STATS BAR
   ================================================== */
.stats-bar {
  display: flex; gap: 12px; flex-wrap: wrap;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px;
}
.stat-pill {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 24px;
  background: var(--bg-card); border: 1px solid var(--border);
  font-size: 0.8rem; color: var(--text-muted);
  transition: var(--transition);
}
.stat-pill:hover { border-color: var(--border-light); transform: translateY(-1px); }
.stat-pill b { color: #fff; font-weight: 600; }
.stat-pill .dot { width: 7px; height: 7px; border-radius: 50%; }
.dot-green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot-blue { background: var(--blue); box-shadow: 0 0 8px var(--blue); }
.dot-orange { background: var(--orange); box-shadow: 0 0 8px var(--orange); }

/* ==================================================
   FORMS
   ================================================== */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.84rem; font-weight: 500;
  color: var(--text-muted); margin-bottom: 7px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 11px 14px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); font-size: 0.92rem;
  font-family: var(--font);
  transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: 10px; border: none;
  font-size: 0.92rem; font-weight: 600; font-family: var(--font);
  cursor: pointer; transition: var(--transition);
}
.btn-green {
  background: linear-gradient(135deg, var(--green), #16a34a);
  color: #fff; box-shadow: 0 4px 16px rgba(34,197,94,0.25);
}
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(34,197,94,0.35); }
.btn-blue {
  background: linear-gradient(135deg, var(--blue), #2563eb);
  color: #fff; box-shadow: 0 4px 16px rgba(59,130,246,0.25);
}
.btn-blue:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(59,130,246,0.35); }

/* ==================================================
   TABLE
   ================================================== */
.data-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.data-table th,
.data-table td {
  padding: 14px 18px; text-align: left;
  font-size: 0.86rem; border-bottom: 1px solid var(--border);
}
.data-table th {
  background: var(--bg-elevated); color: var(--text-muted);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.76rem;
}
.data-table td { color: var(--text); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: rgba(255,255,255,0.03); }

/* ==================================================
   INFO BOX
   ================================================== */
.info-box {
  background: var(--blue-dim); border-left: 3px solid var(--blue);
  padding: 18px 22px; border-radius: 0 10px 10px 0;
  font-size: 0.92rem; color: var(--text); line-height: 1.65; margin: 24px 0;
}
.info-box.orange { background: var(--orange-dim); border-left-color: var(--orange); }
.info-box.green { background: var(--green-dim); border-left-color: var(--green); }
.info-box.red { background: var(--red-dim); border-left-color: var(--red); }

/* ==================================================
   AUTH BOX
   ================================================== */
.auth-box {
  max-width: 440px; margin: 50px auto;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px;
  box-shadow: var(--shadow);
}
.auth-box h2 { text-align: center; margin-bottom: 8px; color: #fff; font-size: 1.5rem; }
.auth-box p { text-align: center; color: var(--text-muted); font-size: 0.88rem; margin-bottom: 28px; }
.auth-links { text-align: center; margin-top: 20px; font-size: 0.84rem; color: var(--text-muted); }

/* ==================================================
   ANIMATIONS
   ================================================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulseCenter {
  0%, 100% { box-shadow: 0 0 12px #3b82f6; }
  50% { box-shadow: 0 0 24px #3b82f6, 0 0 8px #60a5fa; }
}

/* ==================================================
   RESPONSIVE
   ================================================== */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 68px; left: 0; right: 0;
    background: rgba(17,24,39,0.98); border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch;
    padding: 12px 24px; gap: 2px;
    display: none;
  }
  .site-nav.open .nav-menu { display: flex; }
  .has-dropdown .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; background: transparent; min-width: auto;
    padding-left: 14px; margin-top: 2px;
  }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 2rem; }
}
@media (max-width: 600px) {
  .footer-inner { grid-template-columns: 1fr; }
  .page-hero { padding: 50px 20px 40px; }
  .page-hero h1 { font-size: 1.7rem; }
  .section { padding: 40px 20px; }
}