/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --bg2: #1a1d27;
  --bg3: #242736;
  --border: #2e3248;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --primary: #6366f1;
  --primary-hover: #4f52d4;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #22c55e;
  --warning: #f59e0b;
  --green: #22c55e;
  --yellow: #f59e0b;
  --red: #ef4444;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Navbar ── */
.navbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--primary);
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 6px;
  transition: all 0.15s;
  font-size: 13px;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--bg3);
}

.nav-links .logout-btn {
  color: var(--red);
  margin-left: 8px;
}

/* ── Container ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* ── Page Header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Cards ── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text);
}

/* ── Stats Grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.stat-green .stat-value { color: var(--green); }
.stat-yellow .stat-value { color: var(--yellow); }

/* ── Action Cards ── */
.action-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.action-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.15s;
  display: block;
}

.action-card:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.action-icon {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 12px;
  font-weight: 300;
}

.action-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.action-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── Purchase Layout ── */
.purchase-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 700px) {
  .purchase-layout { grid-template-columns: 1fr; }
}

/* ── Forms ── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-group .hint {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

.required { color: var(--red); }

.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 12px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary);
}

.form-group select option {
  background: var(--bg3);
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-align: center;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-full { width: 100%; margin-top: 8px; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 13px;
}

.alert-error { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-warning { background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: #fcd34d; }

/* ── Info Table ── */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

.info-table td {
  padding: 8px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.info-table td:first-child {
  color: var(--text-muted);
  width: 110px;
}

.price-total {
  font-size: 18px;
  color: var(--primary);
}

.confirm-warning {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.25);
  border-radius: 7px;
  padding: 10px 14px;
  font-size: 13px;
  color: #fcd34d;
  margin-bottom: 12px;
}

/* ── Proxy Table ── */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  background: var(--bg2);
  padding: 12px 14px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg2); }

.mono { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 12px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.badge-green { background: rgba(34,197,94,0.15); color: var(--green); }
.badge-red { background: rgba(239,68,68,0.15); color: var(--red); }

.table-footer {
  padding: 12px 16px;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

/* ── Filter & Export ── */
.filter-group, .export-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.export-label {
  color: var(--text-muted);
  font-size: 12px;
}

/* ── Login ── */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
}

.login-box h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
  text-align: center;
}

.login-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 28px;
}

/* ── Result Box ── */
.result-box {
  max-width: 480px;
  margin: 40px auto;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  text-align: center;
}

.result-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.result-success .result-icon { color: var(--green); }
.result-error .result-icon { color: var(--red); }

.result-box h3 {
  font-size: 18px;
  margin-bottom: 20px;
}

.result-box .info-table {
  text-align: left;
  margin-bottom: 24px;
}

.error-msg {
  color: #fca5a5;
  margin-bottom: 20px;
  font-size: 13px;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state p {
  margin-bottom: 16px;
  font-size: 15px;
}

/* ── Calc Result ── */
.calc-result {
  border-color: var(--primary);
}