/* AppAlbania CRM - Main Stylesheet */

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

:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --sidebar-width: 240px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
    min-height: 100vh;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1E3A5F 0%, #0F172A 100%);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h1 {
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-header small {
    display: block;
    font-size: 12px;
    opacity: 0.7;
    margin-top: 4px;
}

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.2s;
    font-size: 14px;
}

.nav-item:hover { background: rgba(255,255,255,0.1); color: white; }
.nav-item.active { background: var(--primary); color: white; }
.nav-item svg { flex-shrink: 0; }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-wrapper { padding: 24px; max-width: 1400px; margin: 0 auto; }

/* Mobile Menu Toggle - HIDDEN BY DEFAULT ON DESKTOP */
.mobile-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 150;
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Sidebar overlay - HIDDEN BY DEFAULT */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 90;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 { font-size: 24px; font-weight: 600; color: var(--gray-900); }
.page-header p { color: var(--gray-500); font-size: 14px; margin-top: 4px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #059669; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #DC2626; }
.btn-warning { background: var(--warning); color: white; }
.btn-warning:hover { background: #D97706; }
.btn-outline { background: white; border: 1px solid var(--gray-200); color: var(--gray-700); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 24px; font-size: 16px; }

.btn-whatsapp { 
    background: #25D366 !important; 
    color: white !important; 
}
.btn-whatsapp:hover { background: #128C7E !important; }

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-100);
}

.card-header h3 { font-size: 16px; font-weight: 600; color: var(--gray-800); }
.card-body { padding: 20px; }

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.stat-card.alert { border-left: 4px solid var(--danger); }
.stat-label { font-size: 13px; color: var(--gray-500); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--gray-900); }
.stat-value.text-success { color: var(--success); }
.stat-value.text-danger { color: var(--danger); }

/* Tables */
.table { width: 100%; border-collapse: collapse; }
.table th { 
    text-align: left; 
    padding: 12px 16px; 
    font-size: 12px; 
    font-weight: 600; 
    text-transform: uppercase; 
    color: var(--gray-500); 
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}
.table td { padding: 14px 16px; border-bottom: 1px solid var(--gray-100); }
.table tbody tr:hover { background: var(--gray-50); }

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    background: var(--gray-100);
    color: var(--gray-700);
}

.badge-success { background: #D1FAE5; color: #065F46; }
.badge-danger { background: #FEE2E2; color: #B91C1C; }
.badge-warning { background: #FEF3C7; color: #92400E; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 6px; color: var(--gray-700); font-size: 14px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}
.alert-success { background: #D1FAE5; color: #065F46; }
.alert-danger { background: #FEE2E2; color: #B91C1C; }
.alert-warning { background: #FEF3C7; color: #92400E; }

/* Text utilities */
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--gray-500) !important; }

/* Empty state */
.empty-state { 
    padding: 60px 20px; 
    text-align: center; 
    color: var(--gray-400); 
}

/* ===========================================
   RESPONSIVE DESIGN - MOBILE ONLY
   =========================================== */

/* Tablet */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile - Show hamburger menu */
@media (max-width: 768px) {
    /* Show mobile toggle button */
    .mobile-toggle { 
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Hide sidebar by default on mobile */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    /* Show sidebar when open */
    .sidebar.open { 
        transform: translateX(0); 
    }
    
    /* Show overlay when sidebar is open */
    .sidebar-overlay.show { 
        display: block; 
    }
    
    /* Remove left margin on mobile */
    .main-content { 
        margin-left: 0; 
    }
    
    /* Adjust content padding for mobile */
    .content-wrapper { 
        padding: 16px; 
        padding-top: 70px; 
    }
    
    .page-header { 
        flex-direction: column; 
        align-items: flex-start; 
    }
    
    .page-header .btn { width: 100%; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    
    .stat-card { padding: 16px; }
    .stat-value { font-size: 22px; }
    
    .table { display: block; overflow-x: auto; }
    
    .card-header { 
        flex-direction: column; 
        align-items: flex-start; 
        gap: 12px; 
    }
    
    .card-header .btn { width: 100%; }
}

/* Small mobile */
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    
    .btn { 
        padding: 12px 16px; 
        width: 100%; 
        justify-content: center; 
    }
    
    .btn-sm { width: auto; }
}