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

:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #ffffff;
    --shadow: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-hover: 0 10px 30px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

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

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

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

/* Download Button in Navbar */
.btn-download {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(74, 144, 226, 0.3);
}

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

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
}

.btn-download-hero {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-download-hero svg {
    width: 20px;
    height: 20px;
}

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

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Animated floating bubbles background */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(74, 144, 226, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(80, 200, 120, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 60% 60%, rgba(74, 144, 226, 0.2) 0%, transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { 
        opacity: 0.6;
        transform: scale(1);
    }
    100% { 
        opacity: 1;
        transform: scale(1.1);
    }
}

/* Floating bubbles */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px),
        radial-gradient(circle, rgba(255,255,255,0.1) 2px, transparent 2px),
        radial-gradient(circle, rgba(255,255,255,0.08) 3px, transparent 3px);
    background-size: 60px 60px, 90px 90px, 120px 120px;
    background-position: 0 0, 30px 30px, 60px 60px;
    animation: floatBubbles 20s linear infinite;
}

@keyframes floatBubbles {
    0% { 
        transform: translateY(0) translateX(0);
    }
    100% { 
        transform: translateY(-100px) translateX(50px);
    }
}

/* Animated wave at bottom */
.hero .wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 150px;
    z-index: 1;
}

.hero .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(255,255,255,0.05)" 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 15s linear infinite;
}

.hero .wave:nth-child(2) {
    bottom: 10px;
    opacity: 0.5;
    animation: waveMove 12s linear infinite reverse;
}

.hero .wave:nth-child(3) {
    bottom: 20px;
    opacity: 0.3;
    animation: waveMove 18s linear infinite;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

/* Floating bubbles */
.floating-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.3), rgba(255,255,255,0.05));
    border: 1px solid rgba(255,255,255,0.2);
    animation: float 15s infinite ease-in-out;
}

.bubble:nth-child(1) { width: 80px; height: 80px; left: 10%; animation-delay: 0s; animation-duration: 12s; }
.bubble:nth-child(2) { width: 60px; height: 60px; left: 20%; animation-delay: 2s; animation-duration: 14s; }
.bubble:nth-child(3) { width: 100px; height: 100px; left: 35%; animation-delay: 4s; animation-duration: 16s; }
.bubble:nth-child(4) { width: 40px; height: 40px; left: 50%; animation-delay: 1s; animation-duration: 10s; }
.bubble:nth-child(5) { width: 70px; height: 70px; left: 65%; animation-delay: 3s; animation-duration: 13s; }
.bubble:nth-child(6) { width: 90px; height: 90px; left: 75%; animation-delay: 5s; animation-duration: 15s; }
.bubble:nth-child(7) { width: 50px; height: 50px; left: 85%; animation-delay: 2.5s; animation-duration: 11s; }
.bubble:nth-child(8) { width: 120px; height: 120px; left: 5%; animation-delay: 6s; animation-duration: 18s; }

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) scale(0.5);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

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

.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(255,255,255,0.1)" 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: waveAnim 20s linear infinite;
}

.wave:nth-child(2) {
    bottom: 5px;
    opacity: 0.6;
    animation: waveAnim 15s linear infinite reverse;
}

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

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

/* Hero badge */
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255,255,255,0.2);
}

/* Hero stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.hero-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    opacity: 0.95;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.4);
}

.btn-primary:hover {
    background: #3a7bc8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-block {
    width: 100%;
}

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

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255,255,255,0.8);
    border-radius: 15px;
    position: relative;
    animation: scroll 2s infinite;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: rgba(255,255,255,0.8);
    border-radius: 50%;
    animation: scroll-dot 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.3; }
}

@keyframes scroll-dot {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* Section Styles */
section {
    padding: 5rem 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

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

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

/* About Section */
.about {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

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

.about-text h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.about-text > p {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.about-feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.about-feature:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.about-feature-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.about-feature strong {
    display: block;
    color: var(--dark-color);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.about-feature span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.about-image-wrapper img {
    display: block;
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.about-image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.4);
}

.badge-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.badge-text {
    font-size: 0.8rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Products Section */
.products {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 60px rgba(74, 144, 226, 0.2);
}

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

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3) 100%);
}

.product-content {
    padding: 1.5rem;
}

.product-icon {
    width: 70px;
    height: 70px;
    margin: -50px auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
    position: relative;
    z-index: 2;
}

.product-icon svg {
    width: 35px;
    height: 35px;
}

.product-icon svg path,
.product-icon svg rect,
.product-icon svg circle,
.product-icon svg line {
    stroke: white;
    fill: none;
}

.product-icon svg rect[fill] {
    fill: rgba(255,255,255,0.3);
}

.product-icon svg circle[fill] {
    fill: rgba(255,255,255,0.5);
}

.product-card h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.product-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.product-feature-tag {
    background: linear-gradient(135deg, #e8f4f8, #f0f7ff);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Equipment Section */
.equipment {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
}

.equipment-showcase {
    margin-bottom: 4rem;
}

.equipment-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.equipment-gallery {
    position: relative;
}

.gallery-main-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: var(--shadow-hover);
    margin-bottom: 1rem;
}

.gallery-thumbs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.gallery-thumbs .thumb {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
    border: 3px solid transparent;
}

.gallery-thumbs .thumb:hover,
.gallery-thumbs .thumb.active {
    opacity: 1;
    border-color: var(--primary-color);
}

.equipment-info h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.equipment-subtitle {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.equipment-info > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.equipment-features {
    display: grid;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-item strong {
    display: block;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.equipment-specs {
    margin-bottom: 4rem;
}

.equipment-specs h3,
.work-photos h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 2rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.spec-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.spec-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.spec-card h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

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

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

.work-gallery img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.work-gallery img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-hover);
}

/* Packaging Materials Section */
.packaging-materials {
    background: white;
}

.materials-categories {
    margin-bottom: 4rem;
}

.material-category {
    margin-bottom: 3rem;
}

.material-category h3 {
    font-size: 1.6rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.category-desc {
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 800px;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

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

.material-card {
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.material-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.material-info {
    padding: 1rem;
}

.material-info h4 {
    font-size: 1rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.material-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.use-case-card {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.use-case-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.use-case-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.materials-benefits h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    text-align: center;
    margin-bottom: 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f4f8 100%);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h4 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

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

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

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

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

.advantage-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.advantage-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 800;
    opacity: 0.3;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.advantage-item p {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.7;
}

/* Contact Section */
.contact {
    background: #f8f9fa;
}

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

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

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

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

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.contact-item p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

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

.contact-item a:hover {
    color: #3a7bc8;
}

/* Contact Form */
.contact-form-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: 1rem 1.5rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: #f9f9f9;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-light);
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.2rem;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

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

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    font-size: 0.95rem;
    opacity: 0.8;
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

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

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px 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: #3a7bc8;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

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

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-in;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-in 0.3s backwards;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s backwards;
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.1);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .btn-download {
        position: absolute;
        right: 70px;
        top: 50%;
        transform: translateY(-50%);
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .btn-download span {
        display: none;
    }

    .btn-download svg {
        width: 20px;
        height: 20px;
    }

    .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);
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    /* About responsive */
    .about-features {
        grid-template-columns: 1fr;
    }

    .about-image-wrapper img {
        height: 350px;
    }

    .products-grid {
        grid-template-columns: 1fr 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* Equipment responsive */
    .equipment-main {
        grid-template-columns: 1fr;
    }

    .gallery-main-img {
        height: 300px;
    }

    .work-gallery {
        grid-template-columns: 1fr;
    }

    .work-gallery img {
        height: 200px;
    }

    /* Materials responsive */
    .materials-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* Hero mobile */
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-badge {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }

    .floating-bubbles .bubble {
        display: none;
    }

    .floating-bubbles .bubble:nth-child(1),
    .floating-bubbles .bubble:nth-child(3),
    .floating-bubbles .bubble:nth-child(5) {
        display: block;
    }

    /* About mobile */
    .about-image-wrapper img {
        height: 280px;
    }

    .about-image-badge {
        padding: 0.75rem 1rem;
    }

    .badge-number {
        font-size: 1.5rem;
    }

    /* Products mobile */
    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-image {
        height: 180px;
    }

    /* Equipment mobile */
    .gallery-thumbs .thumb {
        width: 50px;
        height: 50px;
    }

    .equipment-info h3 {
        font-size: 1.5rem;
    }

    /* Materials mobile */
    .materials-grid {
        grid-template-columns: 1fr;
    }

    .materials-grid-4 {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .use-case-card img {
        height: 120px;
    }

    .material-category h3 {
        font-size: 1.3rem;
    }
}