/* الكود الكامل الجديد لملف watch.css */
:root {
    --dark-bg: #111827;
    --dark-surface: #1f2937;
    --dark-border: #374151;
    --primary-color: #3b82f6;
    --primary-light: #60a5fa;
    --dark-text-primary: #f9fafb;
    --dark-text-secondary: #d1d5db;
    --success-color: #22c55e;
    --error-color: #ef4444;
}
/* زر الصفحة الرئيسية العائم */
.fixed-home-btn {
    position: fixed;
    top: 28px;
    right: 32px;
    z-index: 1002;
    background: #3b82f6;
    color: #fff;
    border-radius: 50%;
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 16px rgba(59,130,246,0.18), 0 1.5px 8px 0 rgba(0,0,0,0.10);
    transition: background 0.2s, box-shadow 0.2s, color 0.2s;
    border: 2.5px solid #1e293b;
    cursor: pointer;
    text-decoration: none;
}
.fixed-home-btn:hover {
    background: #1d4ed8;
    color: #fff;
    box-shadow: 0 8px 32px 0 rgba(59,130,246,0.28), 0 2px 16px 0 rgba(0,0,0,0.13);
}
@media (max-width: 600px) {
    .fixed-home-btn {
        top: 14px;
        right: 10px;
        width: 44px;
        height: 44px;
        font-size: 22px;
    }
}
body { font-family: 'Cairo', sans-serif; background-color: var(--dark-bg); color: var(--dark-text-primary); margin: 0; padding: 2rem 1rem; }
.portal-container { max-width: 1200px; margin: 0 auto; }
.portal-header { text-align: center; margin-bottom: 3rem; }
.portal-logo { max-width: 100px; margin-bottom: 1rem; }
.portal-header h1 { font-size: 2.5rem; color: var(--primary-light); margin: 0 0 0.5rem 0; }
.portal-header p { font-size: 1.2rem; color: var(--dark-text-secondary); }

.courses-grid, .lectures-grid { display: grid; gap: 1.5rem; }
.courses-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.lectures-grid { grid-template-columns: 1fr; }

.course-card, .lecture-item { background-color: var(--dark-surface); border: 1px solid var(--dark-border); border-radius: 12px; padding: 1.5rem; transition: transform 0.2s ease, box-shadow 0.2s ease; cursor: pointer; }
.course-card:hover, .lecture-item:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); border-color: var(--primary-color); }
.course-card h2 { margin: 0 0 0.5rem 0; color: var(--primary-light); }
.course-card p { margin: 0; color: var(--dark-text-secondary); }

.lecture-item { display: flex; align-items: center; justify-content: space-between; }
.lecture-item-title { font-size: 1.2rem; font-weight: 600; }
.lecture-item .play-icon { font-size: 1.5rem; color: var(--primary-color); }

.back-button { background: none; border: 1px solid var(--dark-border); color: var(--dark-text-secondary); padding: 0.5rem 1rem; border-radius: 8px; cursor: pointer; margin-bottom: 1.5rem; }

/* Modal Styles */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.7); display: flex; justify-content: center; align-items: center; z-index: 1000; backdrop-filter: blur(5px); }
.modal-content { background-color: var(--dark-surface); padding: 2rem; border-radius: 12px; max-width: 500px; width: 90%; position: relative; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.video-modal-content { max-width: 900px; }
.modal-close-btn { position: absolute; top: 10px; left: 20px; background: none; border: none; font-size: 2rem; color: var(--dark-text-secondary); cursor: pointer; }
.modal-content h3 { margin-top: 0; color: var(--primary-light); }
.modal-content p { color: var(--dark-text-secondary); }
#videoCodeForm input { width: 100%; text-align: center; letter-spacing: 2px; padding: 0.8rem; border-radius: 8px; border: 1px solid var(--dark-border); background-color: var(--dark-bg); color: white; font-size: 1.1rem; margin-bottom: 1rem; }
.submit-btn { width: 100%; padding: 0.8rem; background-color: var(--primary-color); color: white; border: none; border-radius: 8px; font-size: 1.1rem; cursor: pointer; }
.error-message { min-height: 24px; color: var(--error-color); font-weight: 600; margin-top: 1rem; }
#videoTitle { text-align: center; margin-bottom: 1rem; }