:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-gray: #ecf0f1;
    --dark-gray: #34495e;
    --border-color: #bdc3c7;
    --text-color: #2c3e50;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

html {
    direction: rtl;
    lang: ar;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif, 'Arabic Typesetting';
    background-color: #f5f6fa;
    color: var(--text-color);
    line-height: 1.6;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.col-1 { flex: 0 0 calc(8.333% - 20px); }
.col-2 { flex: 0 0 calc(16.667% - 20px); }
.col-3 { flex: 0 0 calc(25% - 20px); }
.col-4 { flex: 0 0 calc(33.333% - 20px); }
.col-6 { flex: 0 0 calc(50% - 20px); }
.col-12 { flex: 0 0 100%; }

/* Header/Navigation */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: white;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary-color);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logout-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.logout-btn:hover {
    background-color: #c0392b;
}

/* Main Content */
main {
    padding: 30px 0;
    min-height: 70vh;
}

.page-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Cards */
.card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.card-body {
    color: var(--text-color);
}

/* Stat Cards */
.stat-card {
    background: linear-gradient(135deg, var(--secondary-color), #5dade2);
    color: white;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
}

.stat-card.danger {
    background: linear-gradient(135deg, var(--accent-color), #ec7063);
}

.stat-card.success {
    background: linear-gradient(135deg, var(--success-color), #52be80);
}

.stat-card.warning {
    background: linear-gradient(135deg, var(--warning-color), #f5b041);
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary-color);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

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

/* Buttons */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

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

.btn-success:hover {
    background-color: #229954;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

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

.btn-warning:hover {
    background-color: #e67e22;
}

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

.btn-secondary:hover {
    background-color: #2c3e50;
}

.btn-small {
    padding: 8px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
    display: block;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

th, td {
    padding: 15px;
    text-align: right;
    border-bottom: 1px solid var(--light-gray);
}

tbody tr:hover {
    background-color: #f9f9f9;
}

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

/* Status Badges */
.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

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

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

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

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

.badge-secondary {
    background-color: var(--dark-gray);
    color: white;
}

/* Alerts */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-weight: 500;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.login-box {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.login-title {
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 30px;
}

/* Sidebar */
.sidebar {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    border-radius: 8px;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0;
}

.sidebar-menu a {
    display: block;
    padding: 12px 15px;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background-color: var(--secondary-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.modal-close {
    float: left;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
}

.modal-close:hover {
    color: #000;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }

    .col-3, .col-4, .col-6 {
        flex: 0 0 calc(50% - 10px);
    }

    .row {
        gap: 10px;
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 8px;
    }

    .btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .page-title {
        font-size: 20px;
    }

    .login-box {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .col-3, .col-4, .col-6 {
        flex: 0 0 100%;
    }

    .nav-links {
        flex-direction: column;
        gap: 10px;
    }

    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    header {
        padding: 15px 0;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }

.p-10 { padding: 10px; }
.p-20 { padding: 20px; }
.p-30 { padding: 30px; }

.hidden {
    display: none;
}

.text-muted {
    color: #95a5a6;
}

.text-success {
    color: var(--success-color);
}

.text-danger {
    color: var(--accent-color);
}

.text-warning {
    color: var(--warning-color);
}