/* ========================================
   ГЛОБАЛЬНЫЕ СТИЛИ И ПЕРЕМЕННЫЕ
======================================== */

:root {
    /* Цветовая палитра */
    --primary-color: #3B4CCA;        /* Ультрамарин */
    --accent-color: #FFD500;         /* Солнечно-желтый */
    --background-color: #1C1C1E;     /* Глубокий графит */
    --text-color: #EAEAEA;           /* Светло-серый */
    --secondary-color: #20C997;      /* Мятно-зеленый */
    --contrast-color: #FF4D6D;       /* Розово-красный */
    
    /* Дополнительные цвета */
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F8F9FA;
    --gray-medium: #6C757D;
    --gray-dark: #343A40;
    
    /* Типографика */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    
    /* Отступы */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Границы и тени */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Переходы */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   УТИЛИТЫ И КОНТЕЙНЕРЫ
======================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Анимации */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -10px, 0);
    }
    70% {
        transform: translate3d(0, -5px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

.animate-scale-in {
    animation: scaleIn var(--transition-normal) ease-out;
}

/* ========================================
   COOKIE POPUP
======================================== */

.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow-lg);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.cookie-popup.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--spacing-md);
}

.cookie-text h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.cookie-text p {
    opacity: 0.9;
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.btn-accept, .btn-more {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
    display: inline-block;
    text-align: center;
    min-width: 100px;
}

.btn-accept {
    background: var(--accent-color);
    color: var(--background-color);
    border: none;
    cursor: pointer;
}

.btn-accept:hover {
    background: #E6C000;
    transform: translateY(-2px);
}

.btn-more {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* ========================================
   HEADER И НАВИГАЦИЯ
======================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(28, 28, 30, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: all var(--transition-normal);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    font-size: var(--font-size-lg);
    transition: all var(--transition-fast);
}

.logo-link:hover {
    color: var(--accent-color);
    transform: scale(1.05);
}

.logo {
    transition: all var(--transition-fast);
}

.logo:hover {
    transform: rotate(360deg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.btn-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white) !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--border-radius-lg);
    border: 2px solid transparent;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
    border-color: var(--accent-color);
}

.btn-cta::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: all var(--transition-fast);
}

/* ========================================
   MAIN CONTENT
======================================== */

.main-content {
    margin-top: 80px;
}

/* ========================================
   КНОПКИ И ЭЛЕМЕНТЫ ФОРМЫ
======================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
    text-align: center;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-lg);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

/* ========================================
   СЕКЦИИ
======================================== */

.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-medium);
}

/* ========================================
   HERO СЕКЦИЯ
======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--background-color) 0%, #2A2A2E 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(59, 76, 202, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(32, 201, 151, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    z-index: 1;
    position: relative;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideUp 1s ease-out;
    text-align: center;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-color);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    animation: slideUp 1s ease-out 0.2s both;
    text-align: center;
}

.hero-cta {
    animation: slideUp 1s ease-out 0.4s both;
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   КАРТОЧКИ И ГРИД
======================================== */

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-lg);
    border-color: var(--accent-color);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    display: block;
    color: var(--accent-color);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    color: var(--white);
}

.card-text {
    color: var(--text-color);
    text-align: center;
    opacity: 0.9;
}

/* ========================================
   ФОРМЫ
======================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-color);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(255, 213, 0, 0.2);
}

.form-select option {
    background: var(--background-color);
    color: var(--text-color);
    padding: var(--spacing-xs);
    border: none;
}

.form-select option:checked,
.form-select option:hover {
    background: var(--primary-color);
    color: var(--white);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.form-checkbox input[type="checkbox"] {
    margin-top: 2px;
}

.form-checkbox label {
    font-size: 0.9rem;
    line-height: 1.4;
}

/* ========================================
   FOOTER
======================================== */

.main-footer {
    background: linear-gradient(135deg, #1A1A1C 0%, var(--background-color) 100%);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    font-size: var(--font-size-lg);
    color: var(--text-color);
}

.company-description {
    opacity: 0.8;
    line-height: 1.6;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.contact-icon {
    color: var(--accent-color);
    flex-shrink: 0;
    margin-top: 2px;
}

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

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

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--text-color);
    text-decoration: none;
    transition: all var(--transition-fast);
    padding: var(--spacing-xs) 0;
    display: block;
}

.footer-section ul li a:hover {
    color: var(--accent-color);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ========================================
   АДАПТИВНОСТЬ
======================================== */

/* Планшеты */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content {
        max-width: 90%;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
        text-align: center !important;
    }
    
    .hero-subtitle {
        text-align: center !important;
    }
    
    .hero-cta {
        justify-content: center !important;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Мобильные устройства */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-content {
        max-width: 100%;
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
        text-align: center !important;
    }
    
    .hero-subtitle {
        text-align: center !important;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        justify-content: center !important;
    }
    
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Маленькие мобильные (320px+) */
@media (max-width: 320px) {
    :root {
        --font-size-base: 14px;
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.25rem;
    }
    
    .hero-content {
        max-width: 100%;
        padding: 0 var(--spacing-xs);
    }
    
    .hero-title {
        font-size: 1.75rem;
        text-align: center !important;
    }
    
    .hero-subtitle {
        text-align: center !important;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}

/* Принудительное выравнивание по центру для всех размеров */
@media (min-width: 769px) {
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }
    
    .hero-title,
    .hero-subtitle {
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
}

/* Специальные стили для страницы благодарности */
.gracias-page .hero-content {
    text-align: center !important;
    margin: 0 auto !important;
    max-width: 600px;
}

.gracias-page .hero-title {
    text-align: center !important;
}

.gracias-page .hero-subtitle {
    text-align: center !important;
}

.gracias-page .hero-cta {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: var(--spacing-md) !important;
}