/* Velvet Code - Premium CSS Stylesheet (U-Premium Redesign) */

:root {
    /* Цветовая палитра: глубокий оливково-черный и матовое золото (шампань) */
    --color-bg: #060807;
    --color-bg-alt: #0a0d0b;
    --color-bg-glow: #061911; /* Глубокий темный изумруд для свечений */
    --color-text-primary: #f5f4f0; /* Теплая платина / молочный */
    --color-text-secondary: #929995; /* Приглушенный серо-зеленый */
    --color-text-muted: #535956;
    
    --color-accent: #d4b27a; /* Благородное матовое золото */
    --color-accent-rgb: 212, 178, 122;
    --color-accent-hover: #e5c58f;
    --color-accent-glow: rgba(212, 178, 122, 0.08);
    --color-accent-deep: #a47e4b;
    
    --color-border: rgba(212, 178, 122, 0.06);
    --color-border-hover: rgba(212, 178, 122, 0.15);
    --color-card-bg: rgba(255, 255, 255, 0.015);
    --color-card-border: rgba(212, 178, 122, 0.04);
    
    /* Шрифты */
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --font-heading: 'Cormorant Garamond', serif;
    
    /* Сетка и отступы */
    --container-max-width: 1280px;
    --transition-base: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: all 1s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Разное */
    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --header-height: 90px;
}

/* Сброс стилей и глобальные правила */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}



body {
    overflow-x: hidden;
    line-height: 1.65;
}

/* Тонкая фоновая инженерная сетка (Blueprint Grid) */
.bg-grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -3;
    pointer-events: none;
    opacity: 0.015;
    background-size: 60px 60px;
    background-image: 
        linear-gradient(to right, rgba(212, 178, 122, 0.2) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(212, 178, 122, 0.2) 1px, transparent 1px);
}

/* Линия прогресса скролла страницы */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent) 0%, rgba(255, 255, 255, 0.8) 100%);
    z-index: 10002;
    width: 0%;
    transition: width 0.1s ease-out;
}

/* Кастомный курсор */
.custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transform: translate3d(-50%, -50%, 0);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                height 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                background-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    mix-blend-mode: difference;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.custom-cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10001;
    transform: translate3d(-50%, -50%, 0);
    transition: transform 0.1s ease;
}

.cursor-text {
    font-family: var(--font-sans);
    font-size: 0.55rem;
    font-weight: 700;
    color: #060807;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
    position: absolute;
}

/* Ховер с текстовой подсказкой */
.custom-cursor.cursor-hover-text {
    width: 72px;
    height: 72px;
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    mix-blend-mode: normal; /* Отключаем разницу для читаемости текста */
}

.custom-cursor.cursor-hover-text .cursor-text {
    opacity: 1;
}

/* Базовый ховер (кнопки, ссылки) */
.custom-cursor.cursor-hover {
    width: 56px;
    height: 56px;
    background-color: rgba(212, 178, 122, 0.1);
    border-color: transparent;
}

/* Фокус на инпутах */
.custom-cursor.cursor-input {
    width: 10px;
    height: 32px;
    border-radius: 2px;
    border-color: var(--color-accent);
    background-color: transparent;
}

/* Отключение курсора на мобильных устройствах */
@media (pointer: coarse) {
    .custom-cursor, .custom-cursor-dot {
        display: none !important;
    }
}

/* Контейнер */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 48px;
}

/* Фоновые свечения (Параллакс) */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(160px);
    z-index: -2;
    pointer-events: none;
    opacity: 0.3;
    will-change: transform;
}

.bg-glow-1 {
    width: 700px;
    height: 700px;
    top: -200px;
    right: -100px;
    background: radial-gradient(circle, var(--color-bg-glow) 0%, rgba(6,8,7,0) 75%);
}

.bg-glow-2 {
    width: 900px;
    height: 900px;
    bottom: -300px;
    left: -200px;
    background: radial-gradient(circle, rgba(212,178,122,0.04) 0%, rgba(6,8,7,0) 75%);
}

/* Матовый шум */
.bg-noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.015;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 36px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #060807;
    box-shadow: 0 4px 24px rgba(212, 178, 122, 0.15);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    box-shadow: 0 4px 32px rgba(229, 197, 143, 0.35);
    transform: translateY(-2px);
}

.btn-primary .btn-arrow {
    margin-left: 10px;
    transition: var(--transition-base);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(6px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.01);
    color: var(--color-text-primary);
    border-color: var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.btn-secondary:hover {
    background-color: rgba(212, 178, 122, 0.04);
    border-color: rgba(212, 178, 122, 0.3);
    transform: translateY(-2px);
}

.btn-tertiary {
    background-color: transparent;
    color: var(--color-text-secondary);
    padding: 18px 24px;
}

.btn-tertiary:hover {
    color: var(--color-accent);
}

/* Reveal-Анимации Текста */
.reveal-text {
    display: flex;
    flex-direction: column;
}

.reveal-line {
    display: block;
    overflow: hidden;
    line-height: 1.25;
}

.reveal-line span {
    display: block;
    transform: translateY(105%);
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

.reveal-text.visible .reveal-line:nth-child(1) span {
    transition-delay: 0.1s;
}
.reveal-text.visible .reveal-line:nth-child(2) span {
    transition-delay: 0.25s;
}
.reveal-text.visible .reveal-line:nth-child(3) span {
    transition-delay: 0.4s;
}

.reveal-text.visible .reveal-line span {
    transform: translateY(0);
}

/* Обычное проявление */
.fade-in-el {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.fade-in-el.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Заголовки секций */
.section-header {
    max-width: 700px;
    margin-bottom: 90px;
}

.section-subtitle {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 300;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin-bottom: 28px;
    letter-spacing: -0.5px;
}

.accent-serif {
    font-family: var(--font-heading);
    font-style: italic;
    font-weight: 300;
    color: var(--color-accent);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-weight: 300;
}

/* Шапка сайта (Header) */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(6, 8, 7, 0.6);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transition: var(--transition-base);
}

.header.scrolled {
    height: 75px;
    background-color: rgba(6, 8, 7, 0.85);
    border-bottom-color: rgba(212, 178, 122, 0.12);
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Логотип */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: -0.5px;
}

.logo-velvet {
    color: var(--color-text-primary);
}

.logo-code {
    color: var(--color-accent);
    font-style: italic;
    padding-left: 4px;
}

/* Навигация */
.nav-list {
    display: flex;
    list-style: none;
    gap: 48px;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-base);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after, .nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-btn {
    font-size: 0.75rem;
    padding: 12px 24px;
    letter-spacing: 1px;
}

/* Бургер меню */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 110;
}

.burger-line {
    width: 100%;
    height: 1px;
    background-color: var(--color-text-primary);
    transition: var(--transition-base);
}

/* Главный экран (Hero Section) */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 100px;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
    gap: 80px;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 720px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background-color: rgba(212, 178, 122, 0.02);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    margin-bottom: 36px;
    backdrop-filter: blur(8px);
}

.tag-dot {
    width: 5px;
    height: 5px;
    background-color: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent);
}

.tag-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 5.25rem;
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--color-text-primary);
    margin-bottom: 28px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 48px;
    max-width: 580px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 3D Canvas частиц в Hero */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.visual-wrapper {
    position: relative;
    width: 420px;
    height: 420px;
}

.hero-canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 460px;
    height: 460px;
    z-index: 1;
    pointer-events: none;
}

/* Анимация прокрутки вниз */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-mouse {
    display: block;
    width: 22px;
    height: 38px;
    border: 1px solid var(--color-border);
    border-radius: 11px;
    position: relative;
    transition: var(--transition-base);
}

.scroll-mouse:hover {
    border-color: var(--color-accent);
}

.scroll-wheel {
    display: block;
    width: 3px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 1.5px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel-anim 2s ease-in-out infinite;
}

/* 3D-эффект перспективы для сеток */
.philosophy-grid,
.services-grid,
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    perspective: 1000px; /* Важно для 3D Tilt эффекта */
}

/* Секция Философии */
.philosophy-section {
    padding: 160px 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.philosophy-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    padding: 56px 48px;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
                background-color 0.5s ease, 
                border-color 0.5s ease;
    position: relative;
    transform-style: preserve-3d; /* Поддержка 3D */
    will-change: transform;
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    background: linear-gradient(135deg, rgba(212,178,122,0.12) 0%, rgba(255,255,255,0) 60%) border-box;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-base);
}

.philosophy-card:hover {
    background-color: rgba(212, 178, 122, 0.015);
    border-color: rgba(212, 178, 122, 0.12);
}

.philosophy-card:hover::before {
    opacity: 1;
}

.phi-icon-wrapper {
    width: 56px;
    height: 56px;
    background-color: rgba(212, 178, 122, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 36px;
    transition: var(--transition-base);
    transform: translate3d(0, 0, 10px); /* Выдвигаем в 3D */
}

.philosophy-card:hover .phi-icon-wrapper {
    background-color: rgba(212, 178, 122, 0.08);
    border-color: rgba(212, 178, 122, 0.25);
}

.phi-title {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 18px;
    transform: translate3d(0, 0, 15px); /* Выдвигаем заголовок */
}

.phi-text {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
    font-weight: 300;
    transform: translate3d(0, 0, 5px);
}

/* Сравнительная Таблица Стандартов */
.standards-section {
    padding: 160px 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.table-wrapper {
    overflow-x: auto;
    margin-top: 50px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 800px;
}

.comparison-table th, 
.comparison-table td {
    padding: 26px 36px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
    line-height: 1.7;
    transition: var(--transition-base);
}

.comparison-table th {
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background-color: rgba(0, 0, 0, 0.3);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.criterion-name {
    font-weight: 600;
    color: var(--color-text-primary);
    width: 25%;
}

.comparison-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.005);
}

.comparison-table td.accent-column {
    background-color: rgba(212, 178, 122, 0.012);
    border-left: 1px solid rgba(212, 178, 122, 0.05);
    border-right: 1px solid rgba(212, 178, 122, 0.05);
    color: var(--color-text-primary);
}

.comparison-table th.accent-column {
    background-color: rgba(212, 178, 122, 0.025);
    border-left: 1px solid rgba(212, 178, 122, 0.05);
    border-right: 1px solid rgba(212, 178, 122, 0.05);
    color: var(--color-accent);
    font-weight: 700;
}

.comparison-table tr:hover td.accent-column {
    background-color: rgba(212, 178, 122, 0.025);
    color: #ffffff;
}

/* Секция Услуг */
.services-section {
    padding: 160px 0;
    position: relative;
    background-color: rgba(10, 13, 11, 0.4);
    border-bottom: 1px solid var(--color-border);
}

.service-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    padding: 56px 48px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
                background-color 0.5s ease, 
                border-color 0.5s ease;
    display: flex;
    flex-direction: column;
    transform-style: preserve-3d;
    will-change: transform;
}

.service-card-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(212, 178, 122, 0.08) 0%, rgba(212, 178, 122, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    top: var(--y, 0);
    left: var(--x, 0);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.service-card:hover .service-card-glow {
    opacity: 1;
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(212, 178, 122, 0.03);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    z-index: 2;
    transform: translate3d(0, 0, 12px);
}

.service-card:hover .service-icon {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.service-card:hover .service-icon svg path {
    stroke: #060807;
}

.service-title {
    font-family: var(--font-sans);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 22px;
    z-index: 2;
    transform: translate3d(0, 0, 18px);
}

.service-text {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin-bottom: 36px;
    flex-grow: 1;
    z-index: 2;
    font-weight: 300;
    transform: translate3d(0, 0, 8px);
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    z-index: 2;
    transform: translate3d(0, 0, 10px);
}

.service-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--color-border);
    border-radius: 2px;
    transition: var(--transition-base);
}

.service-card:hover .service-tag {
    border-color: rgba(212, 178, 122, 0.3);
    color: var(--color-accent);
    background-color: rgba(212, 178, 122, 0.02);
}

/* Раздел Кейсов */
.cases-section {
    padding: 160px 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.case-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    padding: 56px 48px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
                background-color 0.5s ease, 
                border-color 0.5s ease, 
                box-shadow 0.5s ease;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    will-change: transform;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    background: linear-gradient(135deg, rgba(212,178,122,0.1) 0%, rgba(255,255,255,0) 60%) border-box;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-base);
}

.case-card:hover {
    background-color: rgba(212, 178, 122, 0.015);
    border-color: rgba(212, 178, 122, 0.12);
    box-shadow: 0 12px 40px rgba(212, 178, 122, 0.03);
}

.case-card:hover::before {
    opacity: 1;
}

.case-category {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: 18px;
    display: block;
    transform: translate3d(0, 0, 10px);
}

.case-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 300;
    line-height: 1.25;
    margin-bottom: 22px;
    color: var(--color-text-primary);
    transform: translate3d(0, 0, 16px);
}

.case-desc {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin-bottom: 44px;
    font-weight: 300;
    flex-grow: 1;
    transform: translate3d(0, 0, 6px);
}

.case-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
    transform: translate3d(0, 0, 12px);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-text-primary);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--color-accent);
    font-weight: 500;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Секция Контактов */
.contact-section {
    padding: 160px 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 100px;
    align-items: start;
}

.contact-info {
    max-width: 500px;
}

.contact-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 300;
    color: var(--color-text-primary);
    margin-bottom: 28px;
    letter-spacing: -0.5px;
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 56px;
    font-weight: 300;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
}

.contact-value {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
    width: fit-content;
}

.contact-value:hover {
    color: var(--color-accent);
    transform: translateX(6px);
}

.contact-form-wrapper {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: 56px;
    position: relative;
    overflow: hidden;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 36px;
    transition: opacity 0.4s ease;
}

/* Конфигуратор */
.form-group-custom {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip-btn {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 18px;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.chip-btn:hover {
    border-color: rgba(212, 178, 122, 0.3);
    color: var(--color-text-primary);
    background-color: rgba(212, 178, 122, 0.01);
}

.chip-btn.active {
    background-color: rgba(212, 178, 122, 0.05);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 15px rgba(212, 178, 122, 0.05);
}

/* Floating labels */
.form-group {
    display: flex;
    flex-direction: column;
    position: relative;
}

.form-input {
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    padding: 16px 4px;
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-base);
    outline: none;
}

.form-label {
    position: absolute;
    top: 16px;
    left: 4px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
    pointer-events: none;
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    transform: translateY(-28px) scale(0.8);
    transform-origin: left;
    color: var(--color-accent);
}

.form-input:focus {
    border-bottom-color: rgba(212, 178, 122, 0.6);
}

.form-textarea {
    min-height: 100px;
    resize: none;
}

.form-error-msg {
    font-size: 0.75rem;
    color: #ef4444;
    display: none;
    margin-top: 6px;
}

.form-group.has-error .form-input {
    border-bottom-color: rgba(239, 68, 68, 0.6);
}

.form-group.has-error .form-error-msg {
    display: block;
}

/* Кнопка отправки */
.btn-submit {
    position: relative;
    overflow: hidden;
    margin-top: 12px;
}

.btn-loader {
    position: absolute;
    opacity: 0;
    animation: rotate 1s linear infinite;
    transition: opacity 0.3s ease;
}

/* Состояния отправки */
.contact-form.submitting .btn-submit-text {
    opacity: 0;
}

.contact-form.submitting .btn-loader {
    opacity: 1;
}

.contact-form.submitting .btn-submit {
    pointer-events: none;
}

/* Экран статуса формы */
.form-status-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-alt);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 56px;
    z-index: 10;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.form-status-screen.visible {
    opacity: 1;
    pointer-events: all;
}

.success-icon-wrapper {
    width: 72px;
    height: 72px;
    background-color: rgba(212, 178, 122, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
}

.success-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-text-primary);
    margin-bottom: 16px;
}

.success-text {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 340px;
    font-weight: 300;
}

/* Подвал */
.footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding-top: 100px;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 80px;
    padding-bottom: 80px;
}

.footer-brand {
    max-width: 380px;
}

.footer-logo {
    margin-bottom: 28px;
}

.footer-tagline {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-weight: 300;
}

.footer-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-primary);
    margin-bottom: 28px;
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.footer-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    transition: var(--transition-base);
    font-weight: 300;
}

.footer-link:hover {
    color: var(--color-accent);
    padding-left: 6px;
}

.footer-address {
    font-style: normal;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.footer-address-item {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-weight: 300;
}

.footer-address-item span:first-child {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
}

.footer-address-item a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-address-item a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 36px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer-policy-link {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-policy-link:hover {
    color: var(--color-text-secondary);
}

/* Ключевые анимации */
@keyframes svgPulse {
    0% {
        transform: scale(0.96);
        opacity: 0.3;
    }
    100% {
        transform: scale(1.04);
        opacity: 0.4;
    }
}

@keyframes scroll-wheel-anim {
    0% {
        transform: translate(-50%, 0);
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    70% {
        transform: translate(-50%, 12px);
        opacity: 0;
    }
    100% {
        opacity: 0;
    }
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Адаптивность (Медиа-запросы)
   ========================================================================== */

@media (max-width: 1200px) {
    .hero-title {
        font-size: 4.25rem;
    }
    .philosophy-grid, .services-grid, .cases-grid {
        gap: 32px;
    }
    .philosophy-card, .service-card, .case-card {
        padding: 44px 36px;
    }
    .comparison-table th, 
    .comparison-table td {
        padding: 20px 24px;
    }
}

@media (max-width: 991px) {
    .container {
        padding: 0 32px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-title {
        font-size: 3.75rem;
    }
    
    .hero-subtitle {
        max-width: 600px;
    }
    
    .hero-visual {
        order: -1;
        margin-bottom: 24px;
    }
    
    .philosophy-grid, .services-grid, .cases-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 70px;
    }
    
    .contact-info {
        max-width: 100%;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .contact-details {
        flex-direction: row;
        justify-content: center;
        gap: 60px;
        width: 100%;
        margin-top: 24px;
    }
    
    .footer-container {
        grid-template-columns: 1.5fr 1fr;
        gap: 50px;
    }
    
    .footer-brand {
        grid-column: span 1;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-title {
        font-size: 3rem;
        letter-spacing: -1px;
    }
    
    .section-title, .contact-title {
        font-size: 2.5rem;
    }
    
    /* Мобильное меню */
    .burger-menu {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-bg);
        z-index: 100;
        display: flex;
        align-items: center;
        justify-content: center;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        border-top: 1px solid var(--color-border);
    }
    
    .nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 36px;
    }
    
    .nav-link {
        font-size: 1.35rem;
        font-family: var(--font-heading);
    }
    
    /* Анимация бургера */
    .burger-menu.open .burger-line:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .burger-menu.open .burger-line:nth-child(2) {
        opacity: 0;
    }
    
    .burger-menu.open .burger-line:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .header-btn {
        display: none;
    }
    
    .contact-form-wrapper {
        padding: 44px 32px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 24px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 16px;
    }
    
    .btn {
        width: 100%;
        padding: 16px 28px;
    }
    
    .visual-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .contact-details {
        flex-direction: column;
        gap: 28px;
        align-items: center;
    }
    
    .contact-value {
        font-size: 1.45rem;
    }
}