@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --background: #0a0a0a;
  --foreground: #fafafa;
  --card: #111111;
  --card-foreground: #fafafa;
  --popover: #111111;
  --popover-foreground: #fafafa;
  --primary: #fafafa;
  --primary-foreground: #0a0a0a;
  --secondary: #1a1a1a;
  --secondary-foreground: #fafafa;
  --muted: #1a1a1a;
  --muted-foreground: #a1a1aa;
  --accent: #1a1a1a;
  --accent-foreground: #fafafa;
  --destructive: #dc2626;
  --destructive-foreground: #fafafa;
  --border: #262626;
  --input: #262626;
  --ring: #d4d4d8;
  --radius: 0.5rem;
  --success: #16a34a;
  --warning: #f59e0b;
  --info: #3b82f6;
}

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--foreground);
  min-height: 100vh;
  line-height: 1.6;
}

/* Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 2rem 0;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}

.main-content {
  flex: 1;
  margin-left: 280px;
  padding: 2rem;
  max-width: calc(100vw - 280px);
}

.logo {
  padding: 0 2rem 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-menu {
  list-style: none;
  padding: 0 1rem;
}

.nav-item {
  margin-bottom: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--muted-foreground);
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
  background: var(--accent);
  color: var(--accent-foreground);
}

.nav-icon {
  width: 20px;
  height: 20px;
  opacity: 0.7;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--card-foreground);
  margin-bottom: 0.5rem;
}

.card-description {
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

/* Search Section */
.search-section {
  max-width: 600px;
  margin: 0 auto 3rem;
}

.search-box {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.search-input {
  flex: 1;
  padding: 1rem;
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  border-color: var(--ring);
}

.search-input::placeholder {
  color: var(--muted-foreground);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: var(--secondary);
  color: var(--secondary-foreground);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--accent);
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover {
  opacity: 0.9;
}

.btn-destructive {
  background: var(--destructive);
  color: var(--destructive-foreground);
}

.btn-destructive:hover {
  opacity: 0.9;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Coupon Display */
.coupon-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.coupon-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.shop-logo {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.coupon-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.coupon-info p {
  color: var(--muted-foreground);
}

.coupon-image {
  width: 100%;
  max-width: 300px;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  border: 1px solid var(--border);
}

.code-display {
  background: var(--muted);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  letter-spacing: 0.1em;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin: 1rem 0;
}

.status.available {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.status.used {
  background: rgba(220, 38, 38, 0.1);
  color: var(--destructive);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* QR Section */
.qr-section {
  margin-top: 2rem;
  padding: 2rem;
  background: var(--muted);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.qr-section h4 {
  margin-bottom: 1.5rem;
  color: var(--foreground);
}

.qr-code,
.barcode {
  margin: 1rem 0;
}

.qr-code img,
.barcode img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--foreground);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s ease;
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Tables */
.table-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.table th,
.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  background: var(--muted);
  font-weight: 600;
  color: var(--foreground);
  font-size: 0.875rem;
}

.table td {
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

.table tr:hover {
  background: var(--accent);
}

.table tr:last-child td {
  border-bottom: none;
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.category-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

.category-card:hover {
  border-color: var(--ring);
  transform: translateY(-2px);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.category-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  object-fit: cover;
  border: 1px solid var(--border);
}

.category-info h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 0.25rem;
}

.category-info p {
  color: var(--muted-foreground);
  font-size: 0.875rem;
}

.category-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

.category-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* Error and Success Messages */
.alert {
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  border: 1px solid;
}

.alert-error {
  background: rgba(220, 38, 38, 0.1);
  color: var(--destructive);
  border-color: rgba(220, 38, 38, 0.2);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
  border-color: rgba(34, 197, 94, 0.2);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
  border-color: rgba(59, 130, 246, 0.2);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  color: var(--muted-foreground);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top: 2px solid var(--foreground);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Page Sections */
.page-section {
  display: none;
}

.page-section.active {
  display: block;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}

.page-description {
  color: var(--muted-foreground);
  font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    max-width: 100vw;
    padding: 1rem;
  }

  .search-box {
    flex-direction: column;
  }

  .coupon-header {
    flex-direction: column;
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .table-container {
    overflow-x: auto;
  }
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 101;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  color: var(--foreground);
  cursor: pointer;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
}

/* Utilities */
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.mb-4 {
  margin-bottom: 1rem;
}
.mb-6 {
  margin-bottom: 1.5rem;
}
.mt-4 {
  margin-top: 1rem;
}
.mt-6 {
  margin-top: 1.5rem;
}
.hidden {
  display: none;
}
.flex {
  display: flex;
}
.items-center {
  align-items: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-2 {
  gap: 0.5rem;
}
.gap-4 {
  gap: 1rem;
}