/* Subjects & Archives Page Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f7ff;
    overflow-x: hidden;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 70px);
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    padding: 40px 0;
}

.subjects-section {
    padding: 20px 0;
}

/* Section Title */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Subjects Grid */
.subjects-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 0;
}

/* Subject Archive Container */
.subject-archive-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px 30px;
    cursor: pointer;
    border: 1px solid rgba(67, 97, 238, 0.1);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.subject-archive-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(67, 97, 238, 0.1), transparent);
    transition: left 0.5s;
}

.subject-archive-container:hover::before {
    left: 100%;
}

.subject-archive-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

/* Subject Header */
.subject-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.subject-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin: 0;
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Exam Options */
.exam-options {
    display: none;
    margin-top: 20px;
    text-align: center;
}

.exam-options.active {
    display: block;
}

.exam-option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.exam-option {
    padding: 15px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-align: center;
    border: 1px solid rgba(67, 97, 238, 0.1);
}

.exam-option:hover {
    background: rgba(67, 97, 238, 0.05);
    transform: translateY(-2px);
}

.exam-option-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.exam-option-btn {
    display: inline-block;
    padding: 8px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

/* Responsive Styles */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .subject-archive-container {
        padding: 20px;
    }

    .subject-title {
        font-size: 1.2rem;
        text-align: center;
    }
    
    .exam-option-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.8rem;
    }

    .subject-archive-container {
        padding: 15px;
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}