@charset "UTF-8";
/* ======= צבעים גלובליים ======= */
:root {
    --primary-color: #191970;      /* כחול כהה */
    --secondary-color: #968ab6;    /* סגול בהיר */
    --accent-color: #6d87b7;       /* כחול אפור */
    --info-color: #007398;         /* כחול ים */
    --highlight-color: #c66392;    /* ורוד */
    
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #e9ecef;
    --dark-gray: #6c757d;
    --text-dark: #2c3e50;
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius: 8px;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* ======= איפוס וגדרות בסיסיות ======= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    min-height: 100vh;
    direction: rtl;
}

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

/* ======= כותרת ראשית ======= */
.main-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* ניגודיות גבוהה יותר בטקסט ההאדר */
.main-header, .main-header a, .main-header .logo, .main-header .user-nav, .main-header .user-nav a, .main-header .user-name {
    color: #ffffff !important;
}
.main-header .user-name { opacity: 1; text-shadow: 0 1px 2px rgba(0,0,0,0.35); }
.main-header .logo { text-shadow: 0 1px 2px rgba(0,0,0,0.35); }
.main-header a:hover { color: #ffffff; background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.25); }

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0;
}

.user-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* כפתור פרופיל בהאדר: ניגודיות גבוהה ולא לבן על לבן */
.main-header .btn-secondary {
    background: transparent;
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.8);
}
.main-header .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff !important;
    border-color: rgba(255, 255, 255, 0.95);
}

/* תפריט פרופיל נגלל בהאדר */
.profile-menu { position: relative; }
.profile-toggle { cursor: pointer; }
.profile-dropdown {
    position: absolute;
    top: 110%;
    right: 0;
    min-width: 220px;
    background: #ffffff;
    color: var(--text-dark);
    border: 1px solid var(--gray);
    border-radius: 10px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
    padding: 0.5rem;
    display: none;
    z-index: 200;
}
.profile-dropdown.open { display: block; }
.profile-dropdown a { display: block; padding: 0.6rem 0.75rem; border-radius: 8px; color: var(--text-dark); text-decoration: none; }
.profile-dropdown a:hover { background: var(--light-gray); }

/* אילוץ ניגודיות גבוהה בתפריט בתוך ההאדר הכהה */
.main-header .profile-dropdown { background: #ffffff; color: var(--text-dark); border-color: var(--gray); box-shadow: 0 12px 30px rgba(0,0,0,0.2); }
.main-header .profile-dropdown a { color: var(--text-dark) !important; }
.main-header .profile-dropdown a:hover { color: var(--primary-color) !important; background: var(--light-gray); }

.user-name {
    font-weight: 500;
    opacity: 0.9;
}

/* ======= כפתורים ======= */
.btn-primary {
    background: linear-gradient(135deg, var(--highlight-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.9rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(198, 99, 146, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--accent-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.9rem;
}

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-logout {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.85rem;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-download {
    background: var(--info-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.btn-download:hover {
    background: #005a7a;
    transform: translateY(-1px);
}

.btn-hint {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.btn-hint:hover {
    background: #7a6e94;
}

/* ======= מיכל השיעור ======= */
.lesson-container {
    padding: 2rem 0;
}

.lesson-header {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

.lesson-title {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.lesson-meta {
    display: flex;
    gap: 2rem;
    color: var(--dark-gray);
    font-size: 0.9rem;
}

.lesson-actions {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

/* ======= טאבים ======= */
.lesson-tabs {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.tabs-nav {
    display: flex;
    background: var(--light-gray);
    border-bottom: 1px solid var(--gray);
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1.2rem 1rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

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

.tab-btn.active {
    background: var(--white);
    color: var(--primary-color);
    border-bottom-color: var(--highlight-color);
}

.tabs-content {
    min-height: 600px;
}

.tab-content {
    display: none;
    padding: 2rem;
    animation: fadeIn 0.3s ease-in;
}

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

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

/* ======= רספונסיביות ======= */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .lesson-header {
        flex-direction: column;
        text-align: center;
    }
    
    .lesson-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .tabs-nav {
        flex-direction: column;
    }
    
    .tab-btn {
        text-align: center;
    }
    
    .tab-content {
        padding: 1rem;
    }
    
    .lesson-meta {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .lesson-container {
        padding: 1rem 0;
    }
    
    .lesson-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .lesson-title {
        font-size: 1.4rem;
    }
}