/* =========================================
   CSS Reset and Variables
   ========================================= */

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

:root {
    /* Цветовая палитра */
    --bg-primary: #1b1b1f;        /* неоновый угольный */
    --accent-azure: #1acbf7;      /* лазурный */
    --accent-orange: #ff5e3a;     /* мандариновый */
    --accent-lilac: #d0bfff;      /* светло-лиловый */
    --text-primary: #f7f7f7;      /* молочно-белый */
    --text-secondary: #b0b0b0;
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #1acbf7 0%, #ff5e3a 100%);
    --gradient-secondary: linear-gradient(135deg, #d0bfff 0%, #1acbf7 100%);
    --gradient-hero: linear-gradient(135deg, #1b1b1f 0%, #2a2a2f 100%);
    
    /* Тени */
    --shadow-soft: 0 4px 20px rgba(26, 203, 247, 0.1);
    --shadow-medium: 0 8px 40px rgba(26, 203, 247, 0.2);
    --shadow-strong: 0 12px 60px rgba(26, 203, 247, 0.3);
    
    /* Радиусы */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* Отступы */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Шрифты */
    --font-primary: 'Arial', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Переходы */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* =========================================
   Base Styles
   ========================================= */

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* =========================================
   Cookie Banner
   ========================================= */

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(27, 27, 31, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--accent-azure);
    padding: var(--space-md);
    z-index: 1000;
    opacity: 0;
    transform: translateY(100%);
    transition: all var(--transition-smooth);
}

.cookie-banner.show {
    opacity: 1;
    transform: translateY(0);
}

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

.cookie-text h3 {
    color: var(--accent-azure);
    font-size: 1.2rem;
    margin-bottom: var(--space-xs);
}

.cookie-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cookie-buttons {
    display: flex;
    gap: var(--space-sm);
}

.cookie-btn {
    padding: var(--space-xs) var(--space-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.cookie-btn.accept {
    background: var(--gradient-primary);
    color: white;
}

.cookie-btn.accept:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.cookie-btn.info {
    background: transparent;
    color: var(--accent-lilac);
    border: 1px solid var(--accent-lilac);
}

.cookie-btn.info:hover {
    background: var(--accent-lilac);
    color: var(--bg-primary);
}

/* =========================================
   Header
   ========================================= */

.header {
    background: rgba(27, 27, 31, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    border-bottom: 1px solid rgba(26, 203, 247, 0.1);
    padding: var(--space-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* =========================================
   Main Content
   ========================================= */

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

/* =========================================
   Hero Section
   ========================================= */

.hero {
    background: var(--gradient-hero);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(26, 203, 247, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 94, 58, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: inline-flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-soft);
}

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

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

.btn-secondary:hover {
    background: var(--accent-lilac);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

/* =========================================
   Sections
   ========================================= */

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

.section:first-of-type {
    padding-top: calc(var(--space-2xl) + 80px);
}

/* Exception pour les pages qui ne sont pas le hero */
body:not(.homepage) .section:first-of-type {
    padding-top: calc(var(--space-2xl) + 100px);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* =========================================
   Cards
   ========================================= */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid rgba(26, 203, 247, 0.1);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-smooth);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-azure);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.card-image {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-md);
    position: relative;
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.card:hover .card-img {
    transform: scale(1.05);
}

/* =========================================
   Form Styles
   ========================================= */

.form-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    border: 1px solid rgba(26, 203, 247, 0.1);
    max-width: 600px;
    margin: 0 auto;
}

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

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid rgba(26, 203, 247, 0.3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-azure);
    box-shadow: 0 0 0 3px rgba(26, 203, 247, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-secondary);
}

.form-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-radio-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border: 1px solid rgba(26, 203, 247, 0.3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-radio-item:hover {
    background: rgba(26, 203, 247, 0.1);
    border-color: var(--accent-azure);
}

.form-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

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

.form-checkbox-item label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.form-checkbox-item label a {
    color: var(--accent-azure);
    text-decoration: none;
}

.form-checkbox-item label a:hover {
    text-decoration: underline;
}

/* =========================================
   Footer
   ========================================= */

.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(26, 203, 247, 0.1);
    padding: var(--space-2xl) 0 var(--space-md);
}

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

.footer-section h4 {
    color: var(--accent-azure);
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo-img {
    height: 32px;
    width: auto;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.contact-item {
    color: var(--text-secondary);
}

.contact-item strong {
    color: var(--text-primary);
}

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

.contact-item a:hover {
    text-decoration: underline;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

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

.footer-links a:hover {
    color: var(--accent-azure);
}

.footer-bottom {
    border-top: 1px solid rgba(26, 203, 247, 0.1);
    padding-top: var(--space-md);
    text-align: center;
}

.footer-bottom-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
}

.footer-disclaimer {
    font-size: 0.8rem !important;
    color: rgba(176, 176, 176, 0.7) !important;
}

/* =========================================
   Responsive Design
   ========================================= */

@media (max-width: 768px) {
    .nav-list {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .hero {
        padding-top: 100px;
        min-height: calc(100vh - 20px);
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .card-image {
        height: 150px;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-info {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: clamp(1.8rem, 10vw, 2.5rem);
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .card-image {
        height: 120px;
    }
    
    .form-container {
        padding: var(--space-md);
    }
    
    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 1rem;
    }
}