/* ============================================
   ИНТЕРПАК - Надувная упаковка
   Modern Landing Page with Glassmorphism
   ============================================ */

/* === Reset and Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - более тёплая и профессиональная палитра */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #10b981;
    --accent: #6366f1;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --text: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-alt: #f1f5f9;
    
    /* Glass effects */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-bg-light: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px rgba(74, 144, 226, 0.3);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Spacing */
    --section-padding: 6rem 0;
    --container-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* === Glass Panel === */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    text-decoration: none;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: var(--transition);
}

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

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

.btn-download {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.btn-download svg {
    width: 18px;
    height: 18px;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
    color: white;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(74, 144, 226, 0.5);
    color: white;
}

.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: 0.5s;
}

.btn-glow:hover::before {
    left: 100%;
}

.btn-glass {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    color: white;
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 40%, #0f172a 100%);
    overflow: hidden;
    padding-top: 80px;
}

/* Animated Background */
.hero-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.hero-bg-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(37, 99, 235, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(16, 185, 129, 0.1) 0%, transparent 40%);
    animation: heroGlow 10s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { opacity: 0.7; transform: scale(1) rotate(0deg); }
    100% { opacity: 1; transform: scale(1.1) rotate(2deg); }
}

/* Floating Bubbles */
.floating-bubbles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, 
        rgba(255, 255, 255, 0.25), 
        rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.15);
    animation: floatBubble linear infinite;
    box-shadow: 
        inset 0 0 20px rgba(255, 255, 255, 0.1),
        0 0 30px rgba(74, 144, 226, 0.1);
}

.bubble-lg {
    width: 120px;
    height: 120px;
}

.bubble-md {
    width: 80px;
    height: 80px;
}

.bubble-sm {
    width: 50px;
    height: 50px;
}

.bubble:nth-child(1) { left: 5%; animation-duration: 20s; animation-delay: 0s; }
.bubble:nth-child(2) { left: 15%; animation-duration: 18s; animation-delay: 2s; }
.bubble:nth-child(3) { left: 25%; animation-duration: 22s; animation-delay: 4s; }
.bubble:nth-child(4) { left: 40%; animation-duration: 16s; animation-delay: 1s; }
.bubble:nth-child(5) { left: 55%; animation-duration: 19s; animation-delay: 3s; }
.bubble:nth-child(6) { left: 65%; animation-duration: 21s; animation-delay: 5s; }
.bubble:nth-child(7) { left: 75%; animation-duration: 17s; animation-delay: 2.5s; }
.bubble:nth-child(8) { left: 85%; animation-duration: 23s; animation-delay: 0.5s; }
.bubble:nth-child(9) { left: 92%; animation-duration: 15s; animation-delay: 4.5s; }
.bubble:nth-child(10) { left: 50%; animation-duration: 24s; animation-delay: 6s; }

@keyframes floatBubble {
    0% {
        transform: translateY(100vh) scale(0.3) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-150px) scale(1) rotate(360deg);
        opacity: 0;
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, 
        rgba(0, 0, 0, 0.1) 0%, 
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.4) 100%);
}

/* Hero Content */
.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    text-align: center;
    color: white;
}

.hero-content.glass-panel {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        inset 0 0 80px rgba(255, 255, 255, 0.05);
}

/* Hero Buttons - unified style */
.btn-hero-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    border: none;
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.5);
    color: white;
}

.btn-hero-primary svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-hero-primary:hover svg {
    transform: translateX(4px);
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-title-highlight {
    display: inline-block;
    position: relative;
    color: #fff;
    font-weight: 900;
    text-shadow: 0 0 40px rgba(37, 99, 235, 0.5);
}

.hero-title-highlight::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.hero-title-accent {
    display: block;
    font-size: 0.65em;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 0.5rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-stat {
    padding: 1rem 1.5rem;
    text-align: center;
    min-width: 120px;
}

.hero-stat.glass-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Wave Animation */
.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    overflow: hidden;
    z-index: 1;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.08)" d="M0,160L48,176C96,192,192,224,288,213.3C384,203,480,149,576,138.7C672,128,768,160,864,181.3C960,203,1056,213,1152,197.3C1248,181,1344,139,1392,117.3L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') repeat-x;
    background-size: 50% 100%;
    animation: waveMove 20s linear infinite;
}

.wave:nth-child(2) {
    bottom: 5px;
    opacity: 0.5;
    animation: waveMove 15s linear infinite reverse;
}

.wave:nth-child(3) {
    bottom: 10px;
    opacity: 0.3;
    animation: waveMove 25s linear infinite;
}

@keyframes waveMove {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 13px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    animation: scrollDot 2s infinite;
}

@keyframes scrollDot {
    0% { top: 8px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}

/* === Section Styles === */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* === What Is Section === */
.what-is {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-light) 100%);
}

.what-is-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

/* Glass Info Card */
.glass-info-card {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(99, 102, 241, 0.05) 100%);
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2.5rem;
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.info-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.what-is-block h3,
.glass-info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0;
    color: var(--dark);
}

.glass-info-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.glass-info-card p:last-child {
    margin-bottom: 0;
}

/* Comparison Table - Enhanced */
.comparison-table-wrapper {
    background: white;
    border-radius: 20px;
    padding: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    background: white;
    border-radius: 16px;
    overflow: hidden;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1.2fr 1.2fr 1fr;
    border-bottom: 1px solid #f0f0f0;
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-cell {
    padding: 1.1rem 1.25rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-cell.label {
    font-weight: 600;
    color: var(--dark);
    background: var(--bg-light);
}

.comparison-header .comparison-cell {
    background: var(--bg-light);
    font-weight: 700;
    color: var(--dark);
    padding: 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.comparison-header .comparison-cell.highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
    color: var(--primary-dark);
}

.comparison-winner-badge {
    display: inline-block;
    background: var(--secondary);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.comparison-cell.highlight {
    background: rgba(37, 99, 235, 0.04);
    color: var(--primary-dark);
    font-weight: 500;
}

.comparison-cell.muted {
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.02);
}

.cell-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.cell-icon.good {
    background: rgba(16, 185, 129, 0.15);
    color: var(--secondary);
}

.cell-icon.bad {
    background: rgba(148, 163, 184, 0.2);
    color: var(--text-muted);
}

/* Visual Card */
.what-is-visual {
    position: sticky;
    top: 100px;
}

.visual-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-lg);
}

.visual-card img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.visual-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4);
}

/* Visual card without image */
.visual-card--no-image {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06) 0%, rgba(99, 102, 241, 0.04) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.visual-card-inner {
    text-align: left;
}

.visual-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.visual-icon-circle svg {
    width: 26px;
    height: 26px;
    stroke: var(--primary);
}

.visual-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.visual-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* === Tasks Section === */
.tasks {
    background: var(--bg-light);
}

.tasks-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.task-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.task-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.task-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--bg-alt), #f0f7ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary);
}

.task-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
}

.task-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* === Equipment Section === */
.equipment {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-light) 100%);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.equipment-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.equipment-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.equipment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.equipment-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.equipment-badge.accent {
    background: linear-gradient(135deg, var(--accent), var(--primary));
}

.equipment-content {
    padding: 1.5rem;
}

.equipment-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.equipment-subtitle {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.equipment-specs {
    list-style: none;
    margin-bottom: 1rem;
}

.equipment-specs li {
    font-size: 0.9rem;
    color: var(--text-light);
    padding: 0.4rem 0;
    border-bottom: 1px solid #eee;
}

.equipment-specs li:last-child {
    border-bottom: none;
}

.equipment-specs strong {
    color: var(--text);
}

.equipment-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.benefit-tag {
    background: var(--bg-alt);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
}

.equipment-cta {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 16px;
}

.equipment-cta p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* === Materials Section === */
.materials {
    background: white;
}

.material-category {
    margin-bottom: 4rem;
}

.material-category:last-child {
    margin-bottom: 0;
}

.category-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.category-icon {
    color: var(--primary);
}

.category-desc {
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 700px;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.material-card {
    background: var(--bg-light);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    border: 2px solid transparent;
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.material-card.featured {
    border-color: var(--secondary);
}

.material-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.material-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.material-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 700;
}

.material-badge.eco {
    background: var(--secondary);
    color: white;
}

.material-info {
    padding: 1.25rem;
}

.material-info h4 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
}

.material-features {
    list-style: none;
}

.material-features li {
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.material-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* === Packages Section === */
.packages {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.packages .section-title,
.packages .section-description {
    color: white;
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.package-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
}

.package-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
}

.package-card.featured {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text);
    transform: scale(1.05);
}

.package-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.package-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.package-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.package-card.featured .package-header {
    border-color: #eee;
}

.package-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: inherit;
}

.package-subtitle {
    font-size: 0.9rem;
    opacity: 0.8;
}

.package-includes {
    list-style: none;
    margin-bottom: 1.5rem;
}

.package-includes li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.6rem 0;
    font-size: 0.95rem;
}

.check-icon {
    color: var(--secondary);
    font-weight: bold;
    flex-shrink: 0;
}

.package-benefit {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(80, 200, 120, 0.2);
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

.package-card.featured .package-benefit {
    background: rgba(80, 200, 120, 0.15);
}

.benefit-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.benefit-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
}

.package-footer .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.package-footer .btn-outline:hover {
    background: white;
    color: var(--accent);
}

.package-card.featured .btn-outline {
    border-color: var(--primary);
    color: var(--primary);
}

/* === Advantages Section === */
.advantages {
    background: var(--bg-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon svg {
    width: 32px;
    height: 32px;
    stroke: white;
}

.advantage-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
}

.advantage-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* === Use Cases Section === */
.use-cases {
    background: linear-gradient(180deg, var(--bg-light) 0%, white 100%);
    padding: 5rem 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.use-case-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.use-case-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, var(--bg-alt) 0%, rgba(37, 99, 235, 0.08) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.use-case-card:hover .use-case-icon {
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.use-case-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary);
    transition: var(--transition);
}

.use-case-card:hover .use-case-icon svg {
    stroke: white;
}

.use-case-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    color: var(--dark);
}

.use-case-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* === Select Solution Section === */
.select-solution {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: white;
}

.select-solution-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.select-solution-text h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
}

.select-solution-text .lead {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.solution-benefits {
    list-style: none;
}

.solution-benefits li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0;
    font-size: 1rem;
}

.solution-benefits .benefit-icon {
    color: var(--secondary);
    font-weight: bold;
}

/* Solution Form */
.select-solution-form {
    padding: 2.5rem;
}

.select-solution-form.glass-panel {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.solution-form .form-group {
    margin-bottom: 1.25rem;
}

.solution-form label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.solution-form input,
.solution-form select,
.solution-form textarea {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.solution-form input::placeholder,
.solution-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.solution-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='white' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.solution-form select option {
    background: var(--dark);
    color: white;
}

.solution-form input:focus,
.solution-form select:focus,
.solution-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.solution-form .checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.85rem;
    opacity: 0.8;
    cursor: pointer;
}

.solution-form .checkbox-label input {
    width: auto;
    margin-top: 0.2rem;
}

.solution-form .checkbox-label a {
    color: var(--primary-light);
}

/* === Contact Section === */
.contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    stroke: white;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.contact-text a,
.contact-text p {
    color: var(--text-light);
    font-size: 1rem;
}

.contact-text a:hover {
    color: var(--primary);
}

/* CTA Card */
.cta-card {
    padding: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.cta-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}

.cta-card > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.callback-form .form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.callback-form input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.callback-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.callback-form .checkbox-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.callback-form .checkbox-label.small {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* === Footer === */
.footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.95rem;
    opacity: 0.7;
    line-height: 1.7;
}

.footer-nav h4,
.footer-contacts h4 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: white;
}

.footer-nav ul,
.footer-contacts ul {
    list-style: none;
}

.footer-nav li,
.footer-contacts li {
    margin-bottom: 0.75rem;
}

.footer-nav a,
.footer-contacts a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-nav a:hover,
.footer-contacts a:hover {
    color: var(--primary);
}

.footer-contacts li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-credits {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-credits a {
    color: var(--primary-light);
    font-weight: 500;
    transition: var(--transition);
}

.footer-credits a:hover {
    color: white;
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* === Animations === */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-fade-in-delay {
    animation: fadeIn 0.8s ease-out 0.2s backwards;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s backwards;
}

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

/* === Privacy Modal === */
.privacy-modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding: 0 16px 16px;
    background: rgba(0, 0, 0, 0.35);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.privacy-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.privacy-modal {
    position: relative;
    width: 100%;
    max-width: 960px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(18px);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.privacy-modal-close {
    position: absolute;
    top: 8px;
    right: 12px;
    border: none;
    background: transparent;
    color: var(--text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    transition: var(--transition);
}

.privacy-modal-close:hover {
    color: var(--text);
}

.privacy-modal-content {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
    padding-right: 32px;
}

.privacy-modal-text {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

.privacy-modal-link {
    color: var(--primary);
    font-weight: 500;
}

.privacy-modal-buttons {
    flex-shrink: 0;
}

.privacy-modal-buttons .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}

/* === Responsive Design === */
@media (max-width: 1200px) {
    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .packages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .package-card.featured {
        transform: none;
        grid-column: span 2;
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 0.75rem 0;
    }

    .hamburger {
        display: flex;
    }

    .btn-download {
        position: absolute;
        right: 70px;
        top: 50%;
        transform: translateY(-50%);
        padding: 0.5rem;
    }

    .btn-download span {
        display: none;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-content {
        padding: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .what-is-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .what-is-visual {
        position: static;
    }
    
    .tasks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .equipment-grid {
        grid-template-columns: 1fr;
    }
    
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
    }
    
    .package-card.featured {
        grid-column: auto;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .select-solution-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    :root {
        --section-padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-content {
        padding: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-stat {
        width: 100%;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .comparison-header {
        display: none;
    }
    
    .comparison-cell {
        padding: 0.75rem 1rem;
    }
    
    .comparison-cell:first-child {
        font-weight: 600;
        background: var(--bg-light);
    }
    
    .tasks-grid {
        grid-template-columns: 1fr;
    }
    
    .materials-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .callback-form .form-row {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .privacy-modal-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .privacy-modal-buttons {
        text-align: right;
    }
    
    /* Reduce animations on mobile */
    .bubble {
        display: none;
    }
    
    .bubble:nth-child(1),
    .bubble:nth-child(4),
    .bubble:nth-child(7) {
        display: block;
    }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}