:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-card: rgba(26, 38, 64, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --accent-gold: #fbbf24;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius-lg: 16px;
  --radius-md: 10px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.container.narrow {
  max-width: 600px;
}

/* Navbar */
.navbar {
  background: rgba(11, 15, 25, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand span {
  color: var(--accent);
}

.tenant-badge {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-links a.nav-admin {
  background: rgba(251, 191, 36, 0.12);
  color: var(--accent-gold);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(251, 191, 36, 0.25);
  font-weight: 600;
}

.nav-links a.nav-admin:hover {
  background: rgba(251, 191, 36, 0.2);
}

/* Main */
.main-content {
  padding: 36px 0 60px;
  flex: 1;
}

/* Banner */
.banner {
  background: linear-gradient(135deg, rgba(26, 38, 64, 0.9) 0%, rgba(19, 27, 46, 0.9) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 32px;
  backdrop-filter: blur(12px);
}

.banner-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--success);
  margin-bottom: 8px;
}

.banner h1 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.banner-sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 12px;
}

.banner-stats {
  font-size: 0.9rem;
  color: var(--accent);
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
}

@media (max-width: 800px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.products-section h2, .summary-section h2 {
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(12px);
}

.product-info h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.product-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.product-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}

.product-price small {
  color: var(--text-muted);
  font-weight: normal;
  font-size: 0.8rem;
}

/* Quantity Control */
.quantity-control {
  display: flex;
  align-items: center;
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.qty-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 38px;
  height: 38px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}

.qty-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.qty-input {
  width: 45px;
  background: transparent;
  border: none;
  color: var(--text-main);
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  -moz-appearance: textfield;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Summary Card */
.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: sticky;
  top: 90px;
  backdrop-filter: blur(12px);
}

.input-group {
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.input-group input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.95rem;
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 20px 0;
}

.order-total-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.total-label {
  font-size: 1.1rem;
  font-weight: 600;
}

.total-amount {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, #0284c7 100%);
  color: #0b0f19;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

.form-hint {
  display: block;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 12px;
}

/* Success Card */
.success-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  backdrop-filter: blur(12px);
}

.success-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.success-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 24px;
}

.order-receipt {
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 24px 0;
  text-align: left;
}

.receipt-list {
  list-style: none;
  margin: 16px 0;
}

.receipt-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.receipt-total {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
  font-weight: 700;
  padding-top: 12px;
  color: var(--accent-gold);
}

.success-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* Admin Dashboard */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.admin-sub {
  color: var(--text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 800;
}

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

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

.admin-columns {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 28px;
}

@media (max-width: 900px) {
  .admin-columns {
    grid-template-columns: 1fr;
  }
}

.admin-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.admin-card h2 {
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.card-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th, .data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
  text-align: left;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
}

.mini-items-list {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.badge-btn {
  padding: 6px 12px;
  border-radius: 9999px;
  border: none;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s;
}

.badge-btn:hover {
  transform: scale(1.05);
}

.badge-btn.paid {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.badge-btn.unpaid {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--accent) 0%, #0284c7 100%);
  color: #0b0f19;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  border: none;
}

.btn-outline {
  display: inline-block;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  background: var(--bg-secondary);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner a {
  color: var(--text-main);
  text-decoration: none;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}