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

:root {
    --primary-color: #4a90e2;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --light-color: #f8f9fa;
    --dark-color: #1a1a1a;
    --success-color: #27ae60;
    --warning-color: #f39c12;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    flex-wrap: wrap;
}

.nav-menu a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    font-size: 0.95rem;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--secondary-color);
    transition: all 0.3s ease;
}

.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 2;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}


.hero-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.cloud {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite ease-in-out;
}

.cloud-1 {
    width: 200px;
    height: 200px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.cloud-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation-delay: 5s;
}

.cloud-3 {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 25%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-20px) translateX(10px);
    }
    50% {
        transform: translateY(0) translateX(20px);
    }
    75% {
        transform: translateY(20px) translateX(10px);
    }
}

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

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-desc {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 50px;
}

.about {
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: #555;
    line-height: 1.8;
}

.business-scope {
    background: white;
    padding: 25px;
    border-radius: 10px;
    margin: 25px 0;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.business-scope h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.business-scope ul {
    list-style: none;
}

.business-scope li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #555;
}

.business-scope li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    flex: 1;
    min-width: 100px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    font-size: 1rem;
    color: #666;
}

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

.tech-icon {
    width: 300px;
    height: 300px;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.services {
    background: white;
}

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

.service-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.service-card p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    padding-top: 15px;
    border-top: 2px solid #f0f0f0;
}

.environment {
    background: var(--light-color);
}

.environment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.environment-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.environment-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.environment-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image {
    text-align: center;
    color: white;
}

.placeholder-image span {
    font-size: 4rem;
    display: block;
    margin-bottom: 10px;
}

.placeholder-image p {
    font-size: 1rem;
    opacity: 0.9;
}

.environment-card h3 {
    padding: 20px 20px 10px;
    color: var(--secondary-color);
    font-size: 1.3rem;
}

.environment-card p {
    padding: 0 20px 20px;
    color: #666;
    line-height: 1.6;
}


.cases {
    background: var(--light-color);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.case-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.case-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-image .placeholder-image span {
    font-size: 3.5rem;
}

.case-card h3 {
    padding: 20px 20px 10px;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.case-desc {
    padding: 0 20px 15px;
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

.case-tags {
    padding: 0 20px 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background: var(--primary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

.reviews {
    background: white;
}

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

.review-card {
    background: var(--light-color);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.review-stars {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.review-text {
    color: #555;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 20px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    font-size: 2.5rem;
}

.author-info h4 {
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.author-info p {
    color: #666;
    font-size: 0.9rem;
}


.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    color: var(--secondary-color);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-item p {
    color: #666;
    line-height: 1.6;
}

.contact-map {
    background: var(--light-color);
    border-radius: 15px;
    overflow: hidden;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    text-align: center;
    color: #666;
}

.map-placeholder span {
    font-size: 4rem;
    display: block;
    margin-bottom: 15px;
}

.map-placeholder p {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.map-address {
    font-size: 1rem;
    opacity: 0.8;
}

.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.chat-button {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.4);
    transition: all 0.3s ease;
}

.chat-button:hover {
    transform: scale(1.1);
}

.chat-button span {
    font-size: 2rem;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    display: none;
}

.chat-window.active {
    display: block;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-header {
    background: var(--primary-color);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h4 {
    font-size: 1.1rem;
}

.chat-close {
    font-size: 1.5rem;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.chat-close:hover {
    opacity: 0.7;
}

.chat-messages {
    height: auto;
    max-height: 400px;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
}

.message {
    margin-bottom: 15px;
    padding: 12px 15px;
    border-radius: 10px;
    max-width: 100%;
    line-height: 1.5;
}

.message.system {
    background: white;
    color: #333;
}

.message.user {
    background: var(--primary-color);
    color: white;
    margin-left: auto;
}

.chat-input {
    display: flex;
    gap: 10px;
    padding: 15px;
    background: white;
    border-top: 1px solid #e0e0e0;
}

.chat-input input {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 20px;
    font-size: 0.95rem;
    font-family: inherit;
}

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

.chat-input button {
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
}

.chat-input button:hover {
    background: var(--accent-color);
}

.contact-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 15px 20px;
    background: #f8f9fa;
    border-top: 1px solid #e0e0e0;
}

.contact-actions button {
    width: 100%;
    padding: 12px 20px;
}

.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.footer-section p {
    opacity: 0.8;
    margin-bottom: 10px;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    text-align: left;
    transition: color 0.3s ease;
    width: 100%;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.7;
    margin-bottom: 5px;
}

.footer-bottom a {
    color: var(--primary-color);
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 15px;
    }

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

    .hamburger {
        display: flex;
    }

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

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

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .services-grid,
    .environment-grid,
    .certificates-grid,
    .cases-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .booking-form {
        padding: 25px;
    }

    .chat-window {
        width: 300px;
        right: -10px;
    }

    .company-info {
        flex-direction: column;
        gap: 15px;
    }

    .info-item {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .chat-widget {
        bottom: 20px;
        right: 20px;
    }

    .chat-button {
        width: 50px;
        height: 50px;
    }

    .chat-window {
        width: 300px;
        right: -10px;
    }

    .chat-messages {
        height: 250px;
    }

    .contact-actions {
        padding: 10px 15px;
    }

    .contact-actions button {
        padding: 10px 15px;
    }
}