/**
 * Restaurateur Admin - Styles
 * Primary Color: Teal (#14B8A6)
 */

:root {
    --primary: #14B8A6;
    --primary-dark: #0D9488;
    --primary-light: #5EEAD4;
    --secondary: #1f2937;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    --bg-primary: #f9fafb;
    --bg-card: #ffffff;
    --border-color: #e5e7eb;
    
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
}

/* ── SIDEBAR ── */
.sidebar {
    background: #ffffff;
    border-right: 1px solid #E2E8F0;
    width: 16rem;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    z-index: 40;
}

.sidebar-item {
    padding: 0.75rem 1rem;
    margin: 0.125rem 0.5rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    font-weight: 500;
    color: #64748B;
}

.sidebar-item:hover {
    background: rgba(20, 184, 166, 0.1);
    color: var(--primary);
}

.sidebar-item.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.sidebar-icon {
    width: 1.5rem;
    margin-right: 0.75rem;
    text-align: center;
}

/* ── BUTTONS ── */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.25);
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(20, 184, 166, 0.35);
}

.btn-primary:disabled {
    background: #D1D5DB;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background-color: #F3F4F6;
    color: var(--secondary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-secondary:hover { background-color: #E5E7EB; }

.btn-danger {
    background-color: var(--danger);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-danger:hover { background-color: #DC2626; }

.btn-success {
    background-color: var(--success);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-success:hover { background-color: #16A34A; }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.8125rem; }

/* ── CARDS ── */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.card-body { padding: 1.5rem; }

/* ── INPUTS ── */
.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    transition: all 0.2s;
    background: white;
    font-family: inherit;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.input-field:disabled { background-color: #F3F4F6; cursor: not-allowed; }

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

/* ── STATUS BADGES ── */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.status-pending { background: #fef3c7; color: #d97706; }
.status-confirmed { background: #d1fae5; color: #059669; }
.status-cancelled { background: #fee2e2; color: #dc2626; }
.status-no_show { background: #f3f4f6; color: #6b7280; }

/* ── MODALS ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-out;
}

.modal-content {
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: scaleIn 0.2s ease-out;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body { padding: 1.5rem; overflow-y: auto; flex: 1; }

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ── LOADING ── */
.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid #E5E7EB;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ── ANIMATIONS ── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.animate-fade-in { animation: fadeIn 0.5s ease-out forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease-out forwards; }

/* ── TABLES ── */
table { width: 100%; border-collapse: collapse; }
thead { background: #F9FAFB; border-bottom: 1px solid var(--border-color); }
th { text-align: left; padding: 1rem 1.5rem; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-secondary); }
td { padding: 1rem 1.5rem; border-bottom: 1px solid #F3F4F6; }
tbody tr:hover { background-color: #F9FAFB; }
tbody tr.cursor-pointer { cursor: pointer; }

/* ── STAT CARDS ── */
.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.teal { background: linear-gradient(135deg, #14B8A6, #0D9488); }
.stat-icon.green { background: linear-gradient(135deg, #22C55E, #16A34A); }
.stat-icon.blue { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.stat-icon.amber { background: linear-gradient(135deg, #F59E0B, #D97706); }
.stat-icon.red { background: linear-gradient(135deg, #EF4444, #DC2626); }
.stat-icon.purple { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }

/* ── TOGGLE ── */
.toggle-switch {
    position: relative;
    width: 3rem;
    height: 1.5rem;
    background: #E5E7EB;
    border-radius: 9999px;
    cursor: pointer;
    transition: background 0.2s;
}

.toggle-switch.active { background: var(--primary); }

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 1.25rem;
    height: 1.25rem;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active::after { transform: translateX(1.5rem); }

/* ── LOGIN ── */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
    padding: 1rem;
}

.login-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
}

/* ── AVATAR ── */
.avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .sidebar.open { transform: translateX(0); }
    .modal-content { width: 95%; max-height: 95vh; }
    th, td { padding: 0.75rem 1rem; }
}