:root {
    --primary: #4361ee;
    --primary-dark: #3a0ca3;
    --secondary: #4cc9f0;
    --success: #06d6a0;
    --warning: #f72585;
    --danger: #ef233c;
    --text-main: #2b2d42;
    --text-muted: #8d99ae;
    --bg-body: #f8f9fa;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    --radius: 12px;
    --radius-sm: 8px;
    
    --font-main: 'Cairo', sans-serif;
}

* { box-sizing: border-box; outline: none; }

body {
    margin: 0;
    font-family: var(--font-main);
    background: var(--bg-body);
    color: var(--text-main);
    direction: rtl;
    text-align: right;
    overflow-x: hidden;
}

/* --- Layout --- */
.app-container {
    display: flex;
    height: 100vh;
    transition: filter 0.3s;
}

.app-container.blur {
    filter: blur(5px);
    pointer-events: none;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-sidebar);
    border-left: 1px solid rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.sidebar .logo {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--primary);
}

.sidebar .logo i { font-size: 2.5rem; margin-bottom: 0.5rem; }
.sidebar .logo h2 { margin: 0; font-size: 1.2rem; font-weight: 800; }

.sidebar nav { flex: 1; padding: 1rem 0; overflow-y: auto; }
.sidebar nav ul { list-style: none; padding: 0; margin: 0; }
.sidebar nav li {
    padding: 12px 24px;
    margin: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar nav li:hover { background: rgba(67, 97, 238, 0.05); color: var(--primary); }
.sidebar nav li.active { background: var(--primary); color: white; box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3); }

.sidebar-footer {
    padding: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(0,0,0,0.05);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #f0f2f5;
}

.top-bar {
    background: var(--bg-card);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.top-bar h2 { margin: 0; font-size: 1.5rem; color: var(--primary-dark); }

.user-profile { display: flex; align-items: center; gap: 1rem; }
.user-profile span { font-weight: 600; color: var(--text-main); }
.logout-btn {
    background: #ffe3e3;
    color: var(--danger);
    width: 36px; height: 36px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex; justify-content: center; align-items: center;
    transition: all 0.2s;
}
.logout-btn:hover { background: var(--danger); color: white; }

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

/* --- Components --- */

/* Cards (Stats) */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.stat-card .icon {
    width: 60px; height: 60px;
    border-radius: 50%;
    background: rgba(67, 97, 238, 0.1);
    color: var(--primary);
    display: flex; justify-content: center; align-items: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.stat-card.danger .icon { background: rgba(239, 35, 60, 0.1); color: var(--danger); }
.stat-card.warning .icon { background: rgba(247, 37, 133, 0.1); color: var(--warning); }

.stat-card .info h3 { margin: 0 0 5px 0; font-size: 0.9rem; color: var(--text-muted); }
.stat-card .info p { margin: 0; font-size: 1.8rem; font-weight: 700; color: var(--text-main); }
.stat-card .info p span { font-size: 0.9rem; opacity: 0.7; font-weight: normal; }

/* Tables */
.table-container {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    overflow-x: auto;
}

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

th, td {
    padding: 1rem 1.5rem;
    text-align: right;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

th {
    background: rgba(0,0,0,0.02);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}

tr:last-child td { border-bottom: none; }
tr:hover { background: rgba(0,0,0,0.01); }

/* Badges */
.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge.success { background: rgba(6, 214, 160, 0.15); color: var(--success); }
.badge.warning { background: rgba(247, 37, 133, 0.15); color: var(--warning); }
.badge.danger { background: rgba(239, 35, 60, 0.15); color: var(--danger); }
.badge.info { background: rgba(76, 201, 240, 0.15); color: var(--secondary); }

/* Buttons & Forms */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 15px rgba(67, 97, 238, 0.4); }

.btn-secondary { background: #e9ecef; color: var(--text-main); }
.btn-secondary:hover { background: #dee2e6; }

.btn-icon {
    min-width: 32px; 
    height: 32px;
    padding: 0.4rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    display: inline-flex; justify-content: center; align-items: center;
    background: transparent;
    color: var(--text-muted);
    transition: all 0.2s;
}
.btn-icon:hover { background: rgba(0,0,0,0.05); color: var(--primary); }
.btn-icon.danger:hover { background: rgba(239, 35, 60, 0.1); color: var(--danger); }

.header-action { margin-bottom: 1.5rem; display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 0.5rem; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    display: flex; justify-content: center; align-items: center;
    z-index: 2000;
    padding: 1rem;
}
.modal {
    background: var(--bg-card);
    width: 90%; max-width: 500px;
    max-height: 90vh;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}
@keyframes slideUp { from { transform: translateY(50px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    display: flex; justify-content: space-between; align-items: center;
}
.modal-header h3 { margin: 0; }

.modal-body { padding: 1.5rem; max-height: 60vh; overflow-y: auto; flex: 1; }

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(0,0,0,0.05);
    display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap;
}

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; font-size: 0.9rem; }
.form-control {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1); }

/* Login Overlay */
#login-overlay {
    position: fixed; inset: 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    z-index: 1000;
    display: flex; justify-content: center; align-items: center;
    transition: opacity 0.5s;
    padding: 1rem;
}
#login-overlay.hidden { opacity: 0; pointer-events: none; }

.login-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    width: 90%; max-width: 400px;
    text-align: center;
}
.login-card i { color: var(--primary); margin-bottom: 1rem; }
.login-card h2 { margin-bottom: 2rem; font-size: 1.8rem; }

/* ===== MOBILE RESPONSIVE ===== */

@media (max-width: 768px) {
    /* Hide sidebar by default on mobile */
    .sidebar {
        position: fixed;
        right: -250px;
        top: 0;
        height: 100vh;
        transition: right 0.3s ease;
        z-index: 100;
    }
    
    .sidebar.show {
        right: 0;
    }
    
    /* Mobile menu overlay */
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 99;
    }
    
    .sidebar-overlay.show {
        display: block;
    }
    
    /* Top bar adjustments */
    .top-bar {
        padding: 1rem;
    }
    
    .top-bar h2 {
        font-size: 1.2rem;
    }
    
    /* Content area */
    .content-area {
        padding: 1rem;
    }
    
    /* Stats grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-card .icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .stat-card .info p {
        font-size: 1.5rem;
    }
    
    /* Tables - convert to cards on mobile */
    .table-container {
        overflow-x: visible;
    }
    
    table thead {
        display: none;
    }
    
    table, table tbody, table tr, table td {
        display: block;
        width: 100%;
    }
    
    table tr {
        margin-bottom: 1rem;
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow-sm);
        padding: 1rem;
        background: white;
    }
    
    table td {
        text-align: right;
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(0,0,0,0.05);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    table td:last-child {
        border-bottom: none;
    }
    
    table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-muted);
        margin-left: 1rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.8rem 1.2rem;
        font-size: 0.95rem;
    }
    
    .header-action {
        justify-content: center;
    }
    
    /* Modal */
    .modal {
        width: 95%;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    /* Login card */
    .login-card {
        padding: 2rem 1.5rem;
    }
    
    .login-card h2 {
        font-size: 1.5rem;
    }
    
    /* User profile in top bar */
    .user-profile {
        gap: 0.5rem;
    }
    
    .user-profile span {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .stat-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .stat-card .info p {
        font-size: 1.3rem;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
        justify-content: center;
    }
}