:root {
    /* الألوان الأساسية - منظومة موحّدة عبر النظام كله */
    --primary-color: #1e293b;
    --primary-dark: #0f172a;
    --secondary-color: #2563eb;
    --secondary-dark: #1d4ed8;
    --secondary-light: #eff6ff;
    --success-color: #16a34a;
    --success-light: #f0fdf4;
    --warning-color: #f59e0b;
    --warning-light: #fffbeb;
    --danger-color: #dc2626;
    --danger-light: #fef2f2;
    --info-color: #0891b2;
    --light-color: #f8fafc;
    --dark-color: #1e293b;

    /* ألوان الأدوار (أدمن / مشرف / سائق) */
    --admin-color: #7c3aed;
    --supervisor-color: #0d9488;
    --driver-color: #ea580c;

    /* حياد ونصوص */
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --surface-color: #ffffff;

    /* هندسة الشكل */
    --border-radius-sm: 8px;
    --border-radius: 12px;
    --border-radius-lg: 18px;
    --box-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
    --box-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
    --transition: all 0.2s ease;

    /* خطوط */
    --font-family: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--light-color);
    color: var(--text-color);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

[dir="rtl"] {
    text-align: right;
}

[dir="ltr"] {
    text-align: left;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family);
    font-weight: 700;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 0;
    box-shadow: var(--box-shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-brand i {
    font-size: 1.8rem;
    color: #60a5fa;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Dashboard */
.dashboard {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.welcome-section {
    background: var(--surface-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid var(--border-color);
}

.role-badge {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Stats Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow);
    border-color: transparent;
}

.stat-icon {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: white;
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.stat-info h3 {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.stat-number {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--dark-color);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-sm);
    border: 1px solid var(--border-color);
}

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

.orders-table th,
.orders-table td {
    padding: 0.9rem 1.1rem;
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

.orders-table th {
    background-color: #f8fafc;
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.orders-table tbody tr {
    transition: var(--transition);
}

.orders-table tr:hover {
    background-color: var(--secondary-light);
}

.orders-table tr:last-child td {
    border-bottom: none;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.3rem 0.85rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
    flex-shrink: 0;
}

.status-pending {
    background-color: var(--warning-light);
    color: #b45309;
}

.status-in_progress {
    background-color: var(--secondary-light);
    color: #1d4ed8;
}

.status-delivering {
    background-color: #ecfdf5;
    color: #047857;
}

.status-delivered {
    background-color: #ecfeff;
    color: #0e7490;
}

.status-completed {
    background-color: var(--success-light);
    color: #15803d;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:active {
    transform: translateY(1px);
}

.btn-sm {
    padding: 0.35rem 0.9rem;
    font-size: 0.85rem;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background-color: var(--secondary-dark);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

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

.btn-success:hover {
    background-color: #15803d;
}

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

.btn-warning:hover {
    background-color: #d97706;
}

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

.btn-danger:hover {
    background-color: #b91c1c;
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-control {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: 0.95rem;
    background: var(--surface-color);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(2px);
}

.modal-content {
    background-color: var(--surface-color);
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close-modal {
    position: absolute;
    left: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--danger-color);
}

/* Flash Messages */
.flash-messages {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 1rem;
}

.alert {
    padding: 1rem 1.1rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--box-shadow-sm);
}

.alert-success {
    background-color: var(--success-light);
    color: #15803d;
    border: 1px solid #bbf7d0;
    border-inline-start: 4px solid var(--success-color);
}

.alert-danger {
    background-color: var(--danger-light);
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-inline-start: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: var(--warning-light);
    color: #b45309;
    border: 1px solid #fde68a;
    border-inline-start: 4px solid var(--warning-color);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 3rem;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.language-switcher a {
    color: white;
    text-decoration: none;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.language-switcher a.active {
    background-color: var(--secondary-color);
}

.language-switcher a:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
    font-size: 1rem;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--surface-color);
    min-width: 160px;
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    z-index: 1000;
    right: 0;
    overflow: hidden;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 0.75rem 1rem;
    text-decoration: none;
    display: block;
    transition: var(--transition);
}

.dropdown-content a:hover {
    background-color: var(--light-color);
}

.dropdown:hover .dropdown-content {
    display: block;
}