/* ============================================
   FoodFlow - CSS Global
   ============================================ */

:root {
  --primary: #FF6B35;
  --primary-dark: #E55A2B;
  --primary-light: #FF8F66;
  --secondary: #2D3436;
  --accent: #00B894;
  --accent-dark: #00A381;
  --danger: #E74C3C;
  --warning: #F39C12;
  --success: #27AE60;
  --info: #3498DB;
  --bg: #F8F9FA;
  --bg-white: #FFFFFF;
  --bg-card: #FFFFFF;
  --border: #E1E8ED;
  --text: #2D3436;
  --text-light: #636E72;
  --text-muted: #B2BEC3;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: all 0.2s ease;
  --max-width: 1200px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
  padding: 2rem 0;
}

/* ===== Navbar ===== */
.navbar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

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

.navbar-menu {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  list-style: none;
}

.navbar-menu a {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--primary);
  background: rgba(255, 107, 53, 0.08);
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--secondary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

/* ===== 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-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
  background: #3D4446;
}

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

.btn-success:hover:not(:disabled) {
  background: #219A52;
}

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

.btn-danger:hover:not(:disabled) {
  background: #C0392B;
}

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

select.form-control {
  cursor: pointer;
}

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-pending { background: #FFF3CD; color: #856404; }
.badge-received { background: #D1ECF1; color: #0C5460; }
.badge-preparing { background: #FFE0CC; color: #CC5500; }
.badge-ready { background: #D4EDDA; color: #155724; }
.badge-delivered { background: #CCE5FF; color: #004085; }
.badge-completed { background: #D4EDDA; color: #155724; }
.badge-canceled { background: #F8D7DA; color: #721C24; }

/* ===== Alert/Toast ===== */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-weight: 500;
  display: none;
}

.alert.show {
  display: block;
}

.alert-success { background: #D4EDDA; color: #155724; border: 1px solid #C3E6CB; }
.alert-danger { background: #F8D7DA; color: #721C24; border: 1px solid #F5C6CB; }
.alert-warning { background: #FFF3CD; color: #856404; border: 1px solid #FFEEBA; }
.alert-info { background: #D1ECF1; color: #0C5460; border: 1px solid #BEE5EB; }

/* ===== Table ===== */
.table-responsive {
  overflow-x: auto;
}

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

table th, table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

table th {
  font-weight: 700;
  color: var(--text-light);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg);
}

table tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

/* ===== Grid ===== */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }

  .navbar-menu {
    gap: 0.25rem;
  }

  .navbar-menu a {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
  }
}

/* ===== Auth Pages ===== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.auth-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
}

.auth-card h1 {
  text-align: center;
  margin-bottom: 0.5rem;
}

.auth-card .subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.auth-card .auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 2rem auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  display: none;
}

.loading-overlay.show {
  display: flex;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.empty-state h3 {
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

/* ===== Modal ===== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  display: none;
}

.modal-backdrop.show {
  display: flex;
}

.modal {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  padding: 0.25rem;
}

/* ===== Flex helpers ===== */
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ===== Spacing helpers ===== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ===== Misc ===== */
.price {
  font-weight: 700;
  color: var(--primary);
  font-size: 1.1rem;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}