/* ===== Global Fix для модального окна ===== */
html {
    overflow-y: scroll; /* Всегда показываем скролл */
}

body.modal-open {
    overflow: hidden;
    padding-right: 0 !important;
}

/* ===== Breadcrumbs ===== */
.breadcrumbs-section {
    padding: 20px 0 0;
    background: var(--bg-primary);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 10px 0;
    margin: 0;
    font-size: 14px;
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "/";
    padding: 0 8px;
    color: var(--text-tertiary);
}

/* ===== Hero Section ===== */
.hero-photo {
    padding: 40px 0 80px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--white) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 550px;
}

.hero-title {
    font-size: 44px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

/* Upload Area */
.upload-area {
    background: var(--white);
    border: 2px dashed var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-bottom: 15px;
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.02);
    box-shadow: var(--shadow-md);
}

.upload-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 15px;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.upload-hint {
    font-size: 13px;
    color: var(--text-tertiary);
}

.upload-note {
    font-size: 12px;
    color: var(--text-tertiary);
}

.upload-note a {
    color: var(--primary);
    text-decoration: underline;
}

/* Solution Card */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
}

.solution-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 15px 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.solution-header i {
    font-size: 20px;
}

.solution-body {
    padding: 25px;
}

.solution-equation {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid var(--border);
}

.equation {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

.solution-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step {
    background: var(--bg-secondary);
    padding: 12px 15px;
    border-radius: var(--radius-md);
    font-size: 16px;
    color: var(--text-secondary);
    border-left: 3px solid var(--border);
}

.step.answer {
    background: rgba(16, 185, 129, 0.1);
    border-left: 3px solid var(--success);
    font-weight: 600;
    color: var(--success-dark);
}

/* ===== Subjects Section (КОМПАКТНЫЙ НО С ТЕКСТОМ) ===== */
.subjects {
    padding: 80px 0;
    background: var(--bg-primary);
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.subject-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-decoration: none;
    transition: all var(--transition-normal);
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.subject-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.subject-icon {
    font-size: 36px;
    min-width: 45px;
    text-align: center;
    transition: transform var(--transition-normal);
}

.subject-card:hover .subject-icon {
    transform: scale(1.1);
}

.subject-content {
    flex: 1;
}

.subject-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.subject-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.subject-link {
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap var(--transition-fast);
}

.subject-link i {
    font-size: 11px;
}

.subject-card:hover .subject-link {
    gap: 8px;
}

/* ===== Classes Section ===== */
.classes {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.classes-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.class-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 25px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.class-card:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== Problem Solving Grid ===== */
.problem-solving {
    padding: 80px 0;
    background: var(--bg-primary);
}

.solving-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.solving-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 25px 20px;
    text-decoration: none;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.solving-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.solving-icon {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--primary);
}

.solving-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
    line-height: 1.4;
    flex-grow: 1;
}

.solving-link {
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: gap var(--transition-fast);
}

.solving-link i {
    font-size: 12px;
}

.solving-card:hover .solving-link {
    gap: 8px;
}

/* ===== About GDZ Section ===== */
.about-gdz {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.about-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.about-title {
    font-size: 28px;
    margin-bottom: 25px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 15px;
}

.about-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
}

.about-content p {
    margin-bottom: 20px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-content strong {
    color: var(--primary);
}

/* ===== Testimonials ===== */
.testimonials-photo {
    padding: 80px 0;
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonials-photo .testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 25px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
}

.testimonials-photo .testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.testimonial-rating {
    color: #fbbf24;
    margin-bottom: 15px;
    font-size: 14px;
}

.testimonial-rating i {
    margin-right: 3px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 16px;
    margin-bottom: 3px;
    color: var(--text-primary);
}

.author-info p {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 0;
}

/* ===== FAQ ===== */
.faq-photo {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.faq-photo .faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-photo .faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 15px;
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq-photo .faq-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-question h3 {
    font-size: 16px;
    margin-bottom: 0;
    font-weight: 600;
}

.faq-question i {
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 300px;
}

.faq-answer p {
    margin-bottom: 0;
    color: var(--text-secondary);
}

/* ===== CTA ===== */
.cta-photo {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    text-align: center;
    color: var(--white);
}

.cta-photo .cta-title {
    color: var(--white);
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-photo .cta-subtitle {
    color: rgba(255,255,255,0.9);
    font-size: 18px;
    margin-bottom: 30px;
}

.cta-photo .btn-primary {
    background: var(--white);
    color: var(--primary);
    border: none;
    padding: 16px 40px;
    font-size: 18px;
}

.cta-photo .btn-primary:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* ===== Photo Modal ===== */
.photo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.photo-modal.active {
    opacity: 1;
    visibility: visible;
}

body.modal-open .photo-modal.active {
    /* ничего дополнительного не нужно */
}

.photo-modal .modal-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    padding: 30px;
}

.photo-modal .modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.photo-modal .modal-close:hover {
    color: var(--danger);
}

.modal-body h3 {
    text-align: center;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.modal-upload-area {
    border: 2px dashed var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-bottom: 20px;
}

.modal-upload-area:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.02);
}

.upload-preview {
    text-align: center;
}

.upload-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--border);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .hero-visual {
        order: -1;
    }

    .solution-card {
        margin: 0 auto;
    }

    .hero-title {
        font-size: 36px;
    }

    .about-title:after {
        left: 50%;
        transform: translateX(-50%);
    }

    .about-title {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }

    .cta-photo .cta-title {
        font-size: 28px;
    }

    .solving-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .about-card {
        padding: 30px 20px;
    }

    .subjects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .classes-grid {
        gap: 10px;
    }

    .class-card {
        padding: 10px 18px;
        font-size: 14px;
    }

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

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

/* Убираем подчеркивание у ссылки-обертки */
.upload-area-link {
    text-decoration: none;
    color: inherit;
    display: block; /* Чтобы ссылка занимала всю ширину блока */
}

/* Также убираем подчеркивание у всех вложенных элементов */
.upload-area-link .upload-content,
.upload-area-link .upload-text,
.upload-area-link .upload-hint {
    text-decoration: none;
}

/* Если ссылка посещена - тоже без подчеркивания */
.upload-area-link:visited,
.upload-area-link:hover,
.upload-area-link:active {
    text-decoration: none;
}