/**
 * ZORIN Blowpipe - Полные стили для площадки ПО
 * Единый стиль с экосистемой ZORIN Member
 */

/* ===== БАЗОВЫЕ ПЕРЕМЕННЫЕ ===== */
:root {
    --primary-color: #0088cc;
    --primary-light: rgba(0, 136, 204, 0.1);
    --primary-dark: #006699;
    --secondary-color: #00a1ff;
    --accent-color: #ff6b6b;
    --success-color: #00d25b;
    --warning-color: #ffc107;
    
    /* Light theme */
    --light-bg: #ffffff;
    --light-bg-alt: #f8f9fa;
    --light-bg-secondary: #e9ecef;
    --light-text: #2c2c2c;
    --light-text-secondary: #6c757d;
    --light-text-muted: #adb5bd;
    --light-border: #dee2e6;
    
    /* Dark theme */
    --dark-bg: #18222d;
    --dark-bg-alt: #212e3c;
    --dark-bg-secondary: #21262d;
    --dark-text: #e9ecef;
    --dark-text-secondary: #adb5bd;
    --dark-text-muted: #656d76;
    --dark-border: #30363d;
    
    /* Layout */
    --section-padding: 100px 0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
    --shadow-light: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.25);
}

/* ===== БАЗОВЫЕ СТИЛИ ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--light-bg);
    color: var(--light-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    transition: var(--transition);
}

body.dark-mode {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    margin-bottom: 15px;
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-mode p {
    color: var(--dark-text-secondary);
}

.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.section-gap {
    padding: var(--section-padding);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* ===== ФОНОВЫЕ ЭФФЕКТЫ ===== */
.blur-bg {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.6;
    animation: float 8s ease-in-out infinite;
}

.dark-mode .blur-bg {
    opacity: 0.4;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(120deg); }
    66% { transform: translateY(10px) rotate(240deg); }
}

/* ===== ХЕДЕР ===== */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--light-text);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.dark-mode header {
    background-color: rgba(24, 34, 45, 0.95);
    color: var(--dark-text);
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 60px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    text-decoration: none;
    color: var(--light-text);
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.03em;
    transition: var(--transition);
}

.dark-mode .logo {
    color: var(--dark-text);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav ul li a {
    color: var(--light-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.dark-mode nav ul li a {
    color: var(--dark-text-secondary);
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-bg-alt);
    color: var(--light-text);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dark-mode .theme-toggle {
    background-color: var(--dark-bg-alt);
    color: var(--dark-text);
}

.theme-toggle:hover {
    transform: rotate(15deg);
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    padding: 8px;
}

.dark-mode .mobile-menu-toggle {
    color: var(--dark-text);
}

/* ===== КНОПКИ ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    margin-right: 20px;
    transition: var(--transition);
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.2);
    cursor: pointer;
    font-size: 16px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 136, 204, 0.3);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    box-shadow: none;
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.btn-light {
    background-color: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-light:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
}

.btn-outline-light {
    border-color: white;
    color: white;
    background-color: transparent;
}

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

/* ===== HERO СЕКЦИЯ ===== */
.hero {
    padding-top: 180px;
    padding-bottom: 120px;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-blur-1 {
    top: 10%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
}

.hero-blur-2 {
    bottom: 10%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-image {
    flex: 1;
    position: relative;
    perspective: 1000px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition);
}

.dark-mode .hero-image img {
    box-shadow: var(--shadow-dark);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(-2deg) rotateX(2deg) translateZ(20px);
}

.floating {
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0) perspective(1000px) rotateY(-5deg) rotateX(5deg); }
    50% { transform: translateY(-20px) perspective(1000px) rotateY(-5deg) rotateX(5deg); }
}

.hero h1 {
    margin-bottom: 20px;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 90%;
}

/* ===== ЗАГОЛОВКИ СЕКЦИЙ ===== */
.section-title {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 18px;
}

/* ===== СЕКЦИЯ КАТЕГОРИЙ ===== */
.services {
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--light-bg-alt) 100%);
    position: relative;
}

.dark-mode .services {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg-alt) 100%);
}

.services-blur {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1000px;
    height: 800px;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
}

.service-category {
    margin-bottom: 80px;
}

.category-title {
    font-size: 2rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    color: var(--light-text);
}

.dark-mode .category-title {
    color: var(--dark-text);
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--light-bg);
    border-radius: var(--border-radius-lg);
    padding: 40px 30px;
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--light-border);
    overflow: hidden;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.dark-mode .service-card {
    background: var(--dark-bg-alt);
    border-color: var(--dark-border);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, var(--primary-light), transparent 50%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-light);
    border-color: var(--primary-color);
}

.dark-mode .service-card:hover {
    box-shadow: var(--shadow-dark);
}

.service-card:hover::before {
    height: 8px;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius);
    background: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--primary-color), transparent);
    opacity: 0;
    transition: var(--transition);
    animation: rotate 3s linear infinite;
}

.service-card:hover .service-icon::before {
    opacity: 0.1;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

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

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.dark-mode .service-card h3 {
    color: var(--dark-text);
}

.service-card p {
    margin-bottom: 30px;
    line-height: 1.6;
    flex-grow: 1;
}

.service-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
    padding: 8px 0;
    margin-top: auto;
}

.service-btn:hover {
    gap: 12px;
    color: var(--primary-dark);
}

.service-btn svg {
    transition: var(--transition);
}

.service-btn:hover svg {
    transform: translateX(5px);
}

/* ===== СЕКЦИЯ ВОЗМОЖНОСТЕЙ ===== */
.tech-stack {
    background: var(--light-bg);
    position: relative;
}

.dark-mode .tech-stack {
    background: var(--dark-bg);
}

.tech-description {
    margin-bottom: 60px;
    padding: 40px;
    background: var(--light-bg-alt);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-border);
    position: relative;
    overflow: hidden;
}

.dark-mode .tech-description {
    background: var(--dark-bg-alt);
    border-color: var(--dark-border);
}

.tech-description::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light) 0%, transparent 50%);
    opacity: 0.5;
    z-index: -1;
}

.tech-description h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--light-text);
}

.dark-mode .tech-description h3 {
    color: var(--dark-text);
}

.tech-description > p {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--light-text-secondary);
}

.dark-mode .tech-description > p {
    color: var(--dark-text-secondary);
}

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

.tech-feature {
    padding: 30px;
    background: var(--light-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--light-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .tech-feature {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border);
}

.tech-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.tech-feature:hover::before {
    transform: scaleX(1);
}

.tech-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-light);
}

.dark-mode .tech-feature:hover {
    box-shadow: var(--shadow-dark);
}

.tech-feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    background: var(--primary-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: var(--transition);
}

.tech-feature:hover .tech-feature-icon {
    transform: scale(1.1);
    background: var(--primary-color);
    color: white;
}

.tech-feature h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.dark-mode .tech-feature h4 {
    color: var(--dark-text);
}

.tech-feature p {
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-mode .tech-feature p {
    color: var(--dark-text-secondary);
}

/* ===== СЕКЦИЯ ПРОЦЕССА ===== */
.work-process {
    background: linear-gradient(135deg, var(--light-bg-alt) 0%, var(--light-bg) 100%);
    position: relative;
}

.dark-mode .work-process {
    background: linear-gradient(135deg, var(--dark-bg-alt) 0%, var(--dark-bg) 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    position: relative;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--light-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .process-step {
    background: var(--dark-bg-alt);
    border-color: var(--dark-border);
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--primary-light), transparent 70%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.process-step:hover::before {
    opacity: 1;
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-light);
    border-color: var(--primary-color);
}

.dark-mode .process-step:hover {
    box-shadow: var(--shadow-dark);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 24px;
    position: relative;
    overflow: hidden;
}

.step-number::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: rotate 3s linear infinite;
}

.step-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.dark-mode .step-content h3 {
    color: var(--dark-text);
}

.step-content p {
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-mode .step-content p {
    color: var(--dark-text-secondary);
}

/* ===== СЕКЦИЯ ПРЕИМУЩЕСТВ ===== */
.advantages {
    background: var(--light-bg);
    position: relative;
}

.dark-mode .advantages {
    background: var(--dark-bg);
}

.advantages-blur {
    top: 20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: var(--light-bg-alt);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .advantage-item {
    background: var(--dark-bg-alt);
    border-color: var(--dark-border);
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top center, var(--primary-light), transparent 60%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.advantage-item:hover::before {
    opacity: 1;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-light);
    border-color: var(--primary-color);
}

.dark-mode .advantage-item:hover {
    box-shadow: var(--shadow-dark);
}

.advantage-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: rotate 4s linear infinite;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1) rotate(10deg);
}

.advantage-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.dark-mode .advantage-item h3 {
    color: var(--dark-text);
}

.advantage-item p {
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-mode .advantage-item p {
    color: var(--dark-text-secondary);
}

.advantages-bottom {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-light), transparent);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-border);
}

.dark-mode .advantages-bottom {
    border-color: var(--dark-border);
}

.advantages-bottom h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.dark-mode .advantages-bottom h3 {
    color: var(--dark-text);
}

.advantages-bottom p {
    font-size: 18px;
    color: var(--light-text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

.dark-mode .advantages-bottom p {
    color: var(--dark-text-secondary);
}

/* ===== CTA СЕКЦИЯ ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
    opacity: 0.1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 42px;
    margin-bottom: 20px;
    color: white;
    font-weight: 800;
}

.cta p {
    font-size: 18px;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta .btn {
    margin: 10px;
}

/* ===== FAQ СЕКЦИЯ ===== */
.faq {
    background: var(--light-bg-alt);
    position: relative;
}

.dark-mode .faq {
    background: var(--dark-bg-alt);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--light-bg);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border: 1px solid var(--light-border);
    overflow: hidden;
    transition: var(--transition);
}

.dark-mode .faq-item {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border);
}

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

.dark-mode .faq-item:hover {
    box-shadow: var(--shadow-dark);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 25px 30px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.faq-question::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transform: scaleY(0);
    transition: var(--transition);
}

.faq-item.active .faq-question::before,
.faq-question:hover::before {
    transform: scaleY(1);
}

.faq-question h3 {
    font-size: 18px;
    margin: 0;
    color: var(--light-text);
    font-weight: 600;
    padding-right: 20px;
}

.dark-mode .faq-question h3 {
    color: var(--dark-text);
}

.faq-question svg {
    flex-shrink: 0;
    transition: var(--transition);
    color: var(--primary-color);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
    background: var(--light-bg-alt);
}

.dark-mode .faq-answer {
    background: var(--dark-bg-alt);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 30px 25px;
}

.faq-answer p {
    margin: 0;
    color: var(--light-text-secondary);
    line-height: 1.7;
    padding-top: 15px;
}

.dark-mode .faq-answer p {
    color: var(--dark-text-secondary);
}

.faq-cta {
    text-align: center;
    margin-top: 60px;
    padding: 50px 40px;
    background: var(--light-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-border);
    position: relative;
    overflow: hidden;
}

.dark-mode .faq-cta {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border);
}

.faq-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230088cc' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    z-index: 0;
}

.faq-cta h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--light-text);
    position: relative;
    z-index: 1;
}

.dark-mode .faq-cta h3 {
    color: var(--dark-text);
}

.faq-cta p {
    font-size: 17px;
    margin-bottom: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.faq-cta .btn {
    position: relative;
    z-index: 1;
}

/* ===== ФУТЕР ===== */
footer {
    background: var(--light-bg-secondary);
    color: var(--light-text);
    padding: 80px 0 30px;
    border-top: 1px solid var(--light-border);
}

.dark-mode footer {
    background: var(--dark-bg-secondary);
    color: var(--dark-text);
    border-top-color: var(--dark-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--light-text);
    position: relative;
    padding-bottom: 10px;
}

.dark-mode .footer-column h3 {
    color: var(--dark-text);
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.footer-about p {
    margin-bottom: 25px;
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-mode .footer-about p {
    color: var(--dark-text-secondary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--light-text-secondary);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}

.dark-mode .footer-links a {
    color: var(--dark-text-secondary);
}

.footer-links a:hover {
    color: var(--primary-color);
    gap: 12px;
    transform: translateX(5px);
}

.footer-links a svg {
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.footer-links a:hover svg {
    opacity: 1;
    transform: translateX(0);
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.social-icons a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--light-bg);
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--light-border);
}

.dark-mode .social-icons a {
    background: var(--dark-bg);
    color: var(--dark-text);
    border-color: var(--dark-border);
}

.social-icons a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.footer-divider {
    height: 1px;
    background: var(--light-border);
    margin-bottom: 30px;
}

.dark-mode .footer-divider {
    background: var(--dark-border);
}

.legal-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.legal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.legal-links a {
    color: var(--light-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.dark-mode .legal-links a {
    color: var(--dark-text-secondary);
}

.legal-links a:hover {
    color: var(--primary-color);
}

.copyright {
    color: var(--light-text-muted);
    font-size: 14px;
}

.dark-mode .copyright {
    color: var(--dark-text-muted);
}

/* ===== МОБИЛЬНОЕ МЕНЮ ===== */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    transition: var(--transition);
}

.overlay.show {
    display: block;
}

/* ===== АДАПТИВНОСТЬ ===== */

/* Планшеты */
@media (max-width: 1200px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .section-gap {
        padding: 80px 0;
    }
}

@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        background: var(--light-bg);
        box-shadow: var(--shadow-light);
        transition: var(--transition);
        z-index: 1001;
        padding: 100px 30px 30px;
    }
    
    .dark-mode nav {
        background: var(--dark-bg);
        box-shadow: var(--shadow-dark);
    }
    
    nav.show {
        left: 0;
    }
    
    nav ul {
        flex-direction: column;
        gap: 20px;
    }
    
    nav a {
        font-size: 18px;
        padding: 12px 0;
        border-bottom: 1px solid var(--light-border);
    }
    
    .dark-mode nav a {
        border-bottom-color: var(--dark-border);
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-features {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding-top: 140px;
        padding-bottom: 80px;
    }
    
    .section-title {
        margin-bottom: 50px;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
    
    .services-grid,
    .process-steps,
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .service-card,
    .process-step,
    .advantage-item {
        padding: 30px 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .legal-section {
        flex-direction: column;
        text-align: center;
    }
    
    .legal-links {
        justify-content: center;
    }
    
    .cta h2 {
        font-size: 32px;
    }
    
    .btn {
        width: 100%;
        margin: 8px 0;
        justify-content: center;
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 120px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .service-card,
    .process-step,
    .advantage-item,
    .tech-description {
        padding: 25px 20px;
    }
    
    .faq-question {
        padding: 20px 25px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 25px 20px;
    }
    
    .category-title {
        font-size: 24px;
    }
    
    .tech-description h3 {
        font-size: 24px;
    }
    
    .cta h2 {
        font-size: 24px;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating {
        animation: none;
    }
}

.btn:focus,
.theme-toggle:focus,
.mobile-menu-toggle:focus,
nav a:focus,
.footer-links a:focus,
.faq-question:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== ДОПОЛНИТЕЛЬНЫЕ УТИЛИТЫ ===== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== КАСТОМНЫЙ СКРОЛЛБАР ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg-alt);
}

.dark-mode ::-webkit-scrollbar-track {
    background: var(--dark-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: var(--light-text-muted);
    border-radius: 4px;
}

.dark-mode ::-webkit-scrollbar-thumb {
    background: var(--dark-text-muted);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ===== ПЕЧАТЬ ===== */
@media print {
    .hero-blur-1,
    .hero-blur-2,
    .services-blur,
    .advantages-blur,
    .blur-bg {
        display: none !important;
    }
    
    .btn {
        border: 2px solid var(--primary-color) !important;
        color: var(--primary-color) !important;
        background: transparent !important;
    }
    
    .service-card,
    .process-step,
    .advantage-item {
        border: 1px solid #000 !important;
        box-shadow: none !important;
        page-break-inside: avoid;
    }
}