/* ========== ОСНОВНЫЕ НАСТРОЙКИ ========== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.98);
    --bg-card-hover: rgba(255, 255, 255, 1);
    
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #888888;
    
    --accent-primary: #0078e7;
    --accent-secondary: #4da6ff;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: #4da6ff;
    
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-full: 9999px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    min-height: 100vh;
    overflow-x: hidden;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========== КОНТЕЙНЕР СТРАНИЦЫ ========== */
.page-container {
    position: relative;
    min-height: 100vh;
    z-index: 1;
}

/* ========== ГЕРОЙ СЕКЦИЯ ========== */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
}

/* ========== МОНОЛИТ: КРУГ + ПЛАШКИ (из оригинала) ========== */
.monolith {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Контейнер для плашек - соединены */
.planks-container {
    display: flex;
    width: 100%;
    gap: 0;
    background: transparent;
    position: relative;
}

/* Общие стили для плашек */
.plank {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 2.5rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
    display: flex;
}

/* ===== ЛЕВАЯ ПЛАШКА ===== */
.plank-left-wrapper {
    flex: 1;
    display: flex;
    justify-content: flex-start;
}

.plank-left {
    border-radius: 40px 0 0 40px;
    padding-left: 40px;
    padding-right: 60px;
    width: 100%;
    justify-content: flex-start;
}

.plank-left .plank-content {
    width: 100%;
    max-width: 350px;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
}

/* ===== ПРАВАЯ ПЛАШКА ===== */
.plank-right-wrapper {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.plank-right {
    border-radius: 0 40px 40px 0;
    padding-right: 40px;
    padding-left: 60px;
    width: 100%;
    justify-content: flex-end;
}

.plank-right .plank-content {
    width: 100%;
    max-width: 350px;
    margin-right: 0;
    margin-left: 0;
    text-align: right;
}

/* Текстовые элементы плашек */
.plank-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.plank-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

.plank-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.plank-link:hover {
    color: #005bb5;
    text-decoration: underline;
}

.plank-link svg {
    transition: transform 0.2s;
}

.plank-link:hover svg {
    transform: translateX(4px);
}

/* ========== КРУГ ПОВЕРХ ПЛАШЕК ========== */
.circle-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    pointer-events: auto;
}

.hero-circle {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border: 2px solid transparent;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.hero-circle:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 40px rgba(77, 166, 255, 0.25);
}

.circle-content {
    padding: 2rem;
}

.circle-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.logo-dpo { color: var(--accent-primary); }
.logo-aas { color: var(--text-primary); }
.logo-ai { color: #e73c7e; }

.circle-tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.circle-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-primary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    box-shadow: 0 10px 20px rgba(0, 120, 231, 0.2);
}

.hero-circle:hover .circle-cta {
    background: #005bb5;
    box-shadow: 0 10px 20px rgba(0, 120, 231, 0.3);
    transform: translateY(-2px);
}

/* ========== ПОДСКАЗКА ========== */
.hint {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    z-index: 10;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.hint span {
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hint-arrow {
    width: 24px;
    height: 24px;
    margin: 0 auto;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(-45deg);
    animation: hint-bounce 2s infinite;
}

@keyframes hint-bounce {
    0%, 100% { transform: rotate(-45deg) translateY(0); }
    50% { transform: rotate(-45deg) translateY(8px); }
}

/* ========== ССЫЛКА НАЗАД ========== */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.2s;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ========== FAQ СТРАНИЦА ========== */
.faq-page {
    padding-top: 5rem;
}

.faq-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.page-header {
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 100;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 3rem;
    text-align: center;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.2s;
}

.faq-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.faq-item[open] {
    box-shadow: 0 8px 24px rgba(77, 166, 255, 0.15);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question svg {
    transition: transform 0.2s;
    color: var(--text-muted);
}

.faq-item[open] .faq-question svg {
    transform: rotate(180deg);
    color: var(--accent-primary);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 404 СТРАНИЦА ========== */
.error-page .error-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.error-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 8rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.error-monolith {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.error-planks {
    display: flex;
}

.error-plank {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 1.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.error-plank-left {
    border-radius: 30px 0 0 30px;
    padding-right: 10rem;
}

.error-plank-right {
    border-radius: 0 30px 30px 0;
    padding-left: 10rem;
}

.error-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-primary);
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    transition: all 0.2s;
}

.error-circle:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 40px rgba(77, 166, 255, 0.25);
}

.error-circle-content {
    text-align: center;
}

.error-circle svg {
    margin-bottom: 0.5rem;
}

.error-circle span {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========== СТРАНИЦА FAQ ========== */
.faq-page {
    padding-top: 0;
}

/* Контейнер с прилипанием */
.scroll-container {
    height: 100vh;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    -webkit-overflow-scrolling: touch;
}

/* Секции */
.section {
    height: 100vh;
    width: 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.section-content {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* Заголовки секций */
.section-title {
    color: white;
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 2rem;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* Герой-секция FAQ */
.faq-hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-subtitle {
    color: white;
    font-size: 1.2rem;
    opacity: 0.8;
    text-align: center;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Индикатор скролла */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    z-index: 10;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.scroll-indicator span {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    letter-spacing: 1px;
}

.arrow-down {
    width: 24px;
    height: 24px;
    margin: 0 auto;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: rotate(-45deg) translateY(0); }
    50% { transform: rotate(-45deg) translateY(8px); }
}

/* FAQ секция */
.faq-section .faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-section .faq-item {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
}

.faq-section .faq-item:hover {
    box-shadow: 0 12px 32px rgba(77, 166, 255, 0.15);
    transform: translateY(-2px);
}

.faq-section .faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.faq-section .faq-answer {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Контакты */
.contacts-section .contacts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
}

.contact-card:hover {
    box-shadow: 0 12px 32px rgba(77, 166, 255, 0.15);
    transform: translateY(-4px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
}

.contact-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-link {
    display: block;
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.contact-link:hover {
    color: #005bb5;
}

.contact-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Социальные ссылки */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-link {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.social-link:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

/* Футер */
.footer-section .footer-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 30px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 0 auto;
}

.footer-section .footer-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section .logo-dpo { color: var(--accent-primary); }
.footer-section .logo-aas { color: var(--text-primary); }
.footer-section .logo-ai { color: #e73c7e; }

.footer-section .footer-copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-section .footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-section .footer-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-section .footer-link:hover {
    color: #005bb5;
}

/* Адаптивность для FAQ */
@media (max-width: 768px) {
    .scroll-container {
        scroll-snap-type: none;
        height: auto;
        overflow-y: auto;
    }
    
    .section {
        height: auto;
        min-height: 100vh;
        scroll-snap-align: none;
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .contacts-section .contacts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-card {
        padding: 1.5rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* Шапка FAQ */
.faq-header {
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 100;
}

/* ========== АДАПТИВНОСТЬ ========== */
@media (max-width: 1200px) {
    .plank-left .plank-content,
    .plank-right .plank-content {
        max-width: 280px;
    }
}

@media (max-width: 1000px) {
    .planks-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .plank-left-wrapper,
    .plank-right-wrapper {
        justify-content: center;
    }
    
    .plank-left,
    .plank-right {
        border-radius: 40px !important;
        padding: 2rem !important;
        justify-content: center;
    }
    
    .plank-left .plank-content,
    .plank-right .plank-content {
        text-align: center !important;
        margin: 0 auto;
    }
    
    .circle-overlay {
        position: relative;
        transform: translate(-50%, 0);
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-circle {
        width: 280px;
        height: 280px;
    }
    
    .circle-logo {
        font-size: 1.8rem;
    }
    
    .circle-tagline {
        font-size: 1rem;
    }
    
    .circle-cta {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
    
    .hint {
        bottom: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .error-code {
        font-size: 5rem;
    }
    
    .error-planks {
        flex-direction: column;
        gap: 1rem;
    }
    
    .error-plank-left {
        border-radius: 30px 30px 0 0;
    }
    
    .error-plank-right {
        border-radius: 0 0 30px 30px;
    }
    
    .error-circle {
        position: relative;
        transform: none;
        left: auto;
        top: auto;
        width: 120px;
        height: 120px;
        margin: -1rem 0;
        z-index: 5;
    }
}

@media (max-width: 480px) {
    .hero-circle {
        width: 220px;
        height: 220px;
    }
    
    .circle-logo {
        font-size: 1.5rem;
    }
    
    .plank-title {
        font-size: 1.25rem;
    }
    
    .plank-text {
        font-size: 0.9rem;
    }
}

@media (min-height: 1000px) {
    .hero-circle {
        width: 500px;
        height: 500px;
    }
    
    .circle-logo {
        font-size: 2.8rem;
    }
    
    .plank-left .plank-content,
    .plank-right .plank-content {
        max-width: 400px;
    }
}