:root {
    --primary: #ffcc00;
    --primary-dark: #e6b800;
    --dark: #0d0d0d;
    --dark-light: #1a1a1a;
    --light: #2a2a2a;
    --success: #00ff99;
    --danger: #ff4444;
    --warning: #ffaa00;
    --text: #ffffff;
    --text-secondary: #cccccc;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Tajawal', sans-serif;
}

body {
    background-color: var(--dark);
    color: var(--text);
    line-height: 1.6;
    direction: rtl;
}

/* الهيدر */
.main-header {
    background: linear-gradient(135deg, #111, #333);
    color: var(--primary);
    padding: 20px;
    text-align: center;
    position: relative;
    border-bottom: 3px solid var(--primary);
}

.header-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.user-menu {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    padding: 10px 15px;
    border-radius: 20px;
    font-size: 14px;
    backdrop-filter: blur(10px);
}

.admin-badge {
    background: var(--primary);
    color: var(--dark);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    margin-right: 5px;
}

.app-title {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.app-subtitle {
    margin: 5px 0 0 0;
    color: var(--primary-dark);
    font-size: 1.1rem;
}

/* الحاوية الرئيسية */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 20px auto;
    background: var(--dark-light);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 0 30px rgba(0,0,0,0.3);
    border: 1px solid #333;
}

/* شريط التنقل العلوي */
.top-nav {
    display: flex;
    gap: 12px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid #333;
}

.nav-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--dark);
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(255, 204, 0, 0.3);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 204, 0, 0.4);
}

.nav-btn.admin-btn {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
}

.nav-btn.admin-btn:hover {
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

/* القوائم المنسدلة */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--light);
    min-width: 220px;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.5);
    z-index: 1000;
    margin-top: 8px;
    border: 1px solid #444;
    backdrop-filter: blur(10px);
}

.dropdown-menu.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.dropdown-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid #444;
    transition: background 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dropdown-item:hover {
    background: #3a3a3a;
}

.dropdown-item:last-child {
    border-bottom: none;
}

/* مشغل الصوت */
.music-player-container {
    background: var(--light);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid #444;
}

.music-player-container h3 {
    color: var(--primary);
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.4rem;
}

#mainAudioPlayer {
    width: 100%;
    margin: 15px 0;
    border-radius: 8px;
    background: var(--dark);
}

.player-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.control-btn {
    background: var(--primary);
    color: var(--dark);
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.control-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.tempo-display {
    background: var(--dark);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.repeat-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.repeat-input {
    width: 60px;
    padding: 8px;
    border: 1px solid #444;
    border-radius: 6px;
    background: var(--dark);
    color: var(--text);
    text-align: center;
}

/* تحليل المقام */
.maqam-analysis {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.maqam-badge {
    background: var(--primary);
    color: var(--dark);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.1rem;
}

.analyze-btn {
    background: var(--success);
    color: var(--dark);
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.analyze-btn:hover {
    background: #00e187;
    transform: scale(1.05);
}

/* استيراد يوتيوب */
.import-section {
    background: rgba(255,255,255,0.05);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border: 2px dashed var(--primary);
}

.import-section h4 {
    color: var(--primary);
    margin-bottom: 15px;
    text-align: center;
}

.import-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.url-input {
    flex: 1;
    padding: 12px;
    border: 1px solid #444;
    border-radius: 8px;
    background: var(--dark);
    color: var(--text);
    font-size: 16px;
}

.url-input:focus {
    outline: none;
    border-color: var(--primary);
}

.import-btn {
    background: var(--primary);
    color: var(--dark);
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.import-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.result-message {
    text-align: center;
    padding: 10px;
    border-radius: 6px;
    margin-top: 10px;
}

.result-message.success {
    background: rgba(0, 255, 153, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.result-message.error {
    background: rgba(255, 68, 68, 0.2);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* شبكة الملفات */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.file-card {
    background: var(--light);
    padding: 20px;
    border-radius: 12px;
    border-right: 4px solid var(--primary);
    transition: all 0.3s ease;
    border: 1px solid #444;
}

.file-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 204, 0, 0.2);
    border-color: var(--primary-dark);
}

.file-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.file-name {
    font-weight: bold;
    color: var(--text);
    font-size: 1.1rem;
}

.file-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 8px 0;
}

.file-actions {
    display: flex;
    gap: 8px;
    margin-top: 15px;
}

.action-btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

.action-btn.play {
    background: var(--primary);
    color: var(--dark);
}

.action-btn.analyze {
    background: var(--success);
    color: var(--dark);
}

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

.action-btn:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

/* التبويبات */
.tabs {
    display: flex;
    margin-bottom: 25px;
    background: var(--light);
    border-radius: 10px;
    padding: 6px;
    gap: 6px;
    flex-wrap: wrap;
}

.tab {
    flex: 1;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-width: 120px;
    font-weight: 600;
}

.tab.active {
    background: var(--primary);
    color: var(--dark);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* التجاوب */
@media (max-width: 768px) {
    .container {
        width: 95%;
        padding: 15px;
    }
    
    .top-nav {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-btn {
        justify-content: center;
    }
    
    .player-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .files-grid {
        grid-template-columns: 1fr;
    }
    
    .import-form {
        flex-direction: column;
    }
    
    .dropdown-menu {
        right: 50%;
        transform: translateX(50%);
    }
    
    .user-menu {
        position: static;
        transform: none;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .app-title {
        font-size: 2rem;
    }
}

/* التمرير السلس */
html {
    scroll-behavior: smooth;
}

/* إخفاء العناصر */
.hidden {
    display: none !important;
}

/* الرسومات المتحركة */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 2s infinite;
}