/* ==================== الأساسيات ==================== */
:root {
    --bg: #0a0a0f;
    --bg-card: #161620;
    --bg-glass: rgba(22, 22, 32, 0.9);
    --text: #e0e0e0;
    --text-secondary: #b0b0c0;
    --muted: #777;
    --accent: #e53935;
    --accent-light: #ef5350;
    --accent-glow: rgba(229, 57, 53, 0.2);
    --gold: #f9a825;
    --gold-glow: rgba(249, 168, 37, 0.2);
    --green: #4ecdc4;
    --border: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.1);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 15px 50px rgba(0, 0, 0, 0.6);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Tajawal', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ==================== إعادة تعيين ==================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    direction: rtl;
    -webkit-tap-highlight-color: transparent;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
}

button,
input,
select {
    font-family: var(--font);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

/* ==================== scrollbar ==================== */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--muted);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ==================== شاشة تسجيل الدخول ==================== */
.admin-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.login-card i {
    font-size: 50px;
    color: var(--accent);
    margin-bottom: 16px;
}

.login-card h2 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--text);
}

.login-card p {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.login-card input {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    background: var(--bg);
    color: #fff;
    font-family: var(--font);
    font-size: 16px;
    margin-bottom: 16px;
    text-align: center;
    outline: none;
    transition: all var(--transition);
}

.login-card input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-card input::placeholder {
    color: #555;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    font-family: var(--font);
    transition: all var(--transition);
}

.login-btn:hover {
    background: var(--accent-light);
    box-shadow: var(--shadow-sm);
}

.login-btn:active {
    transform: scale(0.97);
}

.hint {
    font-size: 12px;
    color: #555;
    margin-top: 14px;
}

.hint b {
    color: var(--gold);
}

/* ==================== لوحة التحكم ==================== */
.admin-panel {
    display: flex;
    min-height: 100vh;
}

/* ==================== Sidebar ==================== */
.sidebar {
    width: 250px;
    background: #0d0d14;
    border-left: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.sidebar-header h3 {
    color: var(--accent);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.sidebar-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: 14px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    text-align: right;
    transition: all var(--transition);
    font-weight: 500;
}

.sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
}

.sidebar-btn.active {
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.sidebar-btn i {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

/* ==================== المحتوى الرئيسي ==================== */
.main-content {
    flex: 1;
    margin-right: 250px;
    padding: 30px;
    min-height: 100vh;
}

.content-page {
    display: none;
    animation: pageIn 0.3s ease;
}

.content-page.active {
    display: block;
}

@keyframes pageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h2 {
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    color: var(--text);
}

h2 i {
    color: var(--accent);
}

h3 {
    margin: 24px 0 12px;
    font-size: 16px;
    color: var(--text-secondary);
}

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

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.stat-card i {
    font-size: 30px;
    margin-bottom: 10px;
}

.stat-card h3 {
    font-size: 32px;
    font-weight: 800;
    margin: 6px 0;
    color: var(--text);
}

.stat-card p {
    color: var(--muted);
    font-size: 13px;
}

/* ==================== الجداول ==================== */
.table-container {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

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

th,
td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    text-align: right;
}

th {
    background: rgba(255, 255, 255, 0.02);
    color: var(--accent);
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ==================== النماذج ==================== */
.form-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="number"] {
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: #fff;
    font-family: var(--font);
    font-size: 14px;
    flex: 1;
    min-width: 160px;
    outline: none;
    transition: all var(--transition);
}

.form-row input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.form-row input::placeholder {
    color: #555;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 0;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.form-row button {
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font);
    font-weight: 700;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
    white-space: nowrap;
}

.form-row button:hover {
    background: var(--accent-light);
    box-shadow: var(--shadow-sm);
}

.form-row button:active {
    transform: scale(0.96);
}

/* ==================== قائمة الإعلانات ==================== */
#adsList {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ad-item {
    background: var(--bg-card);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition);
}

.ad-item:hover {
    border-color: var(--border-light);
}

.ad-item span {
    font-size: 14px;
    color: var(--text);
}

.ad-item button {
    background: #e53935;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition);
}

.ad-item button:hover {
    background: #c62828;
}

.delete-user-btn {
    background: #e53935;
    color: #fff;
    border: none;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font);
    font-size: 12px;
    font-weight: 600;
    transition: all var(--transition);
}

.delete-user-btn:hover {
    background: #c62828;
}

/* ==================== تجاوب ==================== */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }

    .sidebar-header h3 {
        display: none;
    }

    .sidebar-btn span {
        display: none;
    }

    .sidebar-btn {
        justify-content: center;
        padding: 14px;
    }

    .sidebar-btn i {
        margin: 0;
    }

    .main-content {
        margin-right: 60px;
        padding: 20px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 18px 14px;
    }

    .stat-card h3 {
        font-size: 24px;
    }

    .form-row {
        flex-direction: column;
    }

    .form-row input {
        min-width: 100%;
    }
}

@media (max-width: 400px) {
    .login-card {
        padding: 30px 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: 14px;
    }
}