:root {
  --bg: #000000;
  --surface: #0d0d0d;
  --surface-2: #141414;
  --gold: #d4af37;
  --gold-light: #f3e5ab;
  --bronze: #a97142;
  --border: rgba(212, 175, 55, 0.25);
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: #e8e8e8;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  margin: 0;
  min-height: 100vh;
}

.gold-text { color: var(--gold); }

.gold-gradient-text {
  background: linear-gradient(135deg, #f3e5ab 0%, #d4af37 50%, #a97142 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.surface {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.surface-2 {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.btn-gold {
  background: linear-gradient(135deg, #f3e5ab, #d4af37 60%, #b8860b);
  color: #0a0a0a;
  font-weight: 700;
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: transform 0.15s, box-shadow 0.15s;
  font-size: 0.95rem;
}
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(212,175,55,0.25); }
.btn-gold:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-ghost {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.15s;
}
.btn-ghost:hover { background: rgba(212,175,55,0.1); }

.bank-card {
  background: linear-gradient(135deg, #1a3a8f 0%, #0b1e5c 50%, #061239 100%);
  border-radius: 18px;
  padding: 22px;
  color: #fff;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 30, 120, 0.4);
  overflow: hidden;
  aspect-ratio: 1.6 / 1;
  max-width: 420px;
}
.bank-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.12), transparent 60%);
  pointer-events: none;
}
.bank-card .card-number {
  font-family: 'Courier New', monospace;
  letter-spacing: 0.12em;
  font-size: 1.05rem;
  margin: 20px 0 12px;
}
.bank-card .tier-label {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  opacity: 0.85;
}
.bank-card .tier-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-top: 2px;
}
.bank-card .balance-label {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  opacity: 0.75;
}
.bank-card .balance-value {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.bank-card .meta-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 16px;
}
.bank-card .expiry { font-size: 0.8rem; opacity: 0.9; }

.visa-logo {
  font-style: italic;
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  color: #fff;
}

.eye-btn {
  background: none;
  border: none;
  color: #fff;
  opacity: 0.8;
  cursor: pointer;
  padding: 0;
}

.nav {
  background: rgba(0,0,0,0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.notif-banner {
  background: linear-gradient(90deg, #1a0f00, #2b1a00, #1a0f00);
  border-bottom: 1px solid var(--border);
  color: var(--gold-light);
  text-align: center;
  padding: 8px 16px;
  font-size: 0.85rem;
}
.notif-banner a { color: #25D366; margin-left: 6px; text-decoration: none; }

.stat-card {
  background: linear-gradient(160deg, #0d0d0d 0%, #141414 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  position: relative;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}
.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: #8a8a8a;
  text-transform: uppercase;
}
.stat-value {
  font-size: 1.7rem;
  font-weight: 700;
  margin-top: 8px;
}

.input {
  width: 100%;
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: #fff;
  outline: none;
  font-size: 0.95rem;
  font-family: inherit;
}
.input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(212,175,55,0.15); }

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: #0d0d0d;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #141414;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  padding: 12px 22px;
  border-radius: 10px;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }

.badge-purchased {
  background: linear-gradient(135deg, #d4af37, #a97142);
  color: #0a0a0a;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: 20px;
  text-transform: uppercase;
}/* Mobile responsive */
@media (max-width: 640px) {
  .nav {
    padding: 12px 14px;
  }
  .nav a span, .nav a {
    font-size: 0.8rem;
  }
  .bank-card {
    padding: 16px;
    border-radius: 14px;
  }
  .bank-card .card-number {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    margin: 14px 0 8px;
  }
  .bank-card .tier-name {
    font-size: 0.9rem;
  }
  .bank-card .balance-value {
    font-size: 1rem;
  }
  .bank-card .visa-logo {
    font-size: 1.1rem;
  }
  .stat-value {
    font-size: 1.4rem;
  }
  .notif-banner {
    font-size: 0.75rem;
    padding: 6px 12px;
  }
}