:root {
  --bg: #0b1220;
  --bg-soft: #0f1a2f;
  --surface: #0f172a;
  --card: #111827;
  --primary: #2563eb;
  --primary-2: #22d3ee;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #1f2937;
  --success: #10b981;
}
* { box-sizing: border-box }
html, body { height: 100% }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 400px at 10% -10%, #0a2f67 0%, transparent 50%), linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
}
a { color: inherit; text-decoration: none }
img { max-width: 100%; display: block }
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, color .12s ease;
}
.btn-primary {
  background: linear-gradient(90deg, var(--primary) 0%, #3b82f6 60%, var(--primary-2) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(34, 211, 238, .25);
}
.btn-secondary {
  background: rgba(255,255,255,.06);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn:hover { transform: translateY(-1px) }
.btn-full { width: 100% }

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,18,32,.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header.scrolled { box-shadow: 0 10px 25px rgba(0,0,0,.25) }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-weight: 700;
  letter-spacing: .5px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
}
.brand-logo-sm {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
}
.brand-name { font-weight: 700 }
.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}
.nav-link {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,.05) }
.nav-cta {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  color: var(--text);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text);
  display: block;
}

.hero {
  padding: 64px 0 24px;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(34,211,238,.15) 0%, transparent 60%),
    radial-gradient(800px 400px at 0% 20%, rgba(37,99,235,.2) 0%, transparent 60%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
  align-items: center;
}
.hero-title {
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  line-height: 1.1;
  margin: 0 0 12px;
}
.hero-subtitle {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 22px;
}
.hero-actions { display: flex; gap: 14px; margin-bottom: 18px }
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 12px;
}
.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
}
.hero-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 20px 40px rgba(0,0,0,.35);
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}
.metric {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,.04);
}
.metric-value {
  font-size: 1.25rem;
  font-weight: 700;
}
.metric-label {
  font-size: .875rem;
  color: var(--muted);
}

.section { padding: 64px 0 }
.section-title {
  font-size: 1.875rem;
  margin: 0 0 8px;
}
.section-subtitle {
  color: var(--muted);
  margin: 0 0 24px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.card-title { margin: 0 0 8px; font-size: 1.125rem }
.card-text { margin: 0; color: var(--muted) }

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.feature {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  align-items: start;
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
}
.feature-icon svg { width: 30px; height: 30px }
.feature-title { margin: 0 0 6px; font-size: 1.125rem }
.feature-text { margin: 0; color: var(--muted) }

.pricing {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.price-card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}
.price-amount {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.price-period { color: var(--muted) }
.price-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.price-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
}
.fine-print {
  color: var(--muted);
  font-size: .875rem;
  margin-top: 12px;
}

.cta {
  padding: 64px 0;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(34,211,238,.15) 0%, transparent 60%),
    radial-gradient(800px 400px at 20% 80%, rgba(37,99,235,.2) 0%, transparent 60%);
}
.cta-inner {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  align-items: center;
}
.cta-title { margin: 0 0 8px; font-size: 1.75rem }
.cta-text { margin: 0 0 16px; color: var(--muted) }
.cta-form {
  display: grid;
  gap: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.cta-form input {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 0 12px;
}
.cta-form input::placeholder { color: var(--muted) }

.footer {
  border-top: 1px solid var(--border);
  background: rgba(11,18,32,.8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: 18px;
  padding: 32px 0;
}
.footer-text { margin-top: 6px; font-weight: 600 }
.footer-muted { margin-top: 10px; color: var(--muted); font-size: .875rem }
.footer-links { display: grid; gap: 8px }
.footer-links a { color: var(--muted) }
.footer-links a:hover { color: var(--text) }
.footer-contact { color: var(--muted) }
.footer-bottom {
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 28px;
  color: var(--muted);
}

.auth-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border-radius: 16px;
  padding: 18px;
  max-width: 520px;
  margin: 0 auto;
}
.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}
.tab {
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-weight: 600;
}
.tab.active {
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(34, 211, 238, .25);
}
.auth-form {
  display: grid;
  gap: 12px;
}
.auth-form.hidden { display: none }
.auth-form input {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 0 12px;
}
.auth-form input::placeholder { color: var(--muted) }
.form-note {
  color: var(--muted);
  font-size: .875rem;
}

.admin-panel.hidden { display: none }
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}
.stat-card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
}
.stat-label { color: var(--muted) }
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.admin-card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.admin-title { margin: 0 0 12px }
.admin-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}
.input {
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 0 12px;
  width: 100%;
  max-width: 320px;
}
.table {
  width: 100%;
  border-collapse: collapse;
}
.table thead th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  cursor: pointer;
}
.table tbody td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
}
.table tbody tr:hover {
  background: rgba(255,255,255,.03);
}
.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-register { background: rgba(16,185,129,.2); color: #10b981 }
.badge-login { background: rgba(37,99,235,.2); color: #2563eb }
.badge-select_plan { background: rgba(147,51,234,.2); color: #9333ea }
.badge-chat_agent { background: rgba(6,182,212,.2); color: #06b6d4 }
.badge-admin_login { background: rgba(148,163,184,.2); color: #94a3b8 }

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.plan-card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  display: grid;
  gap: 12px;
}
.plan-amount {
  font-size: 1.5rem;
  font-weight: 700;
}
.plan-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  color: var(--muted);
}
.modal {
  position: fixed;
  inset: 0;
  display: none;
}
.modal.open { display: block }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(2px);
}
.modal-card {
  position: relative;
  z-index: 2;
  max-width: 520px;
  margin: 10vh auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
}
.modal-title { margin: 0 0 8px; font-size: 1.25rem }
.modal-text { margin: 0 0 12px; color: var(--muted) }
.modal-actions { display: flex; gap: 10px }

.account-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.account-card {
  background: linear-gradient(180deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.account-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.account-title {
  display: grid;
  gap: 4px;
}
.account-sub { color: var(--muted) }
.account-balance {
  text-align: right;
}
.balance-label { color: var(--muted) }
.balance-value {
  font-size: 1.75rem;
  font-weight: 700;
}

@media (max-width: 960px) {
  .nav { display: none }
  .nav.open {
    display: grid;
    position: absolute;
    top: 72px;
    right: 20px;
    width: calc(100% - 40px);
    grid-template-columns: 1fr;
    background: rgba(11,18,32,.9);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px;
  }
  .nav-toggle { display: inline-flex }
  .hero-grid { grid-template-columns: 1fr }
  .metrics { grid-template-columns: 1fr 1fr }
  .cards { grid-template-columns: 1fr 1fr }
  .features { grid-template-columns: 1fr }
  .pricing { grid-template-columns: 1fr }
  .cta-inner { grid-template-columns: 1fr }
  .footer-grid { grid-template-columns: 1fr; gap: 8px }
  .plans-grid { grid-template-columns: 1fr }
  .admin-grid { grid-template-columns: 1fr }
  .stats-grid { grid-template-columns: 1fr }
}