/* ===== CSS Variables ===== */
:root {
    --primary: #2E7D32;
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --secondary: #1565C0;
    --secondary-dark: #0D47A1;
    --accent: #FF6F00;
    --accent-hover: #E65100;
    --bg-light: #F5F5F5;
    --bg-white: #FFFFFF;
    --text-primary: #212121;
    --text-secondary: #757575;
    --footer-bg: #424242;
    --border-color: #E0E0E0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Archivo', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
}

/* ===== Utilities ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
}

.section-title.center {
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 111, 0, 0.3);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Archivo', sans-serif;
    color: var(--primary);
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.phone {
    font-weight: 600;
    color: var(--primary);
    font-size: 1.125rem;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    height: 24px;
}

.burger span {
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 50%, #A5D6A7 100%);
    z-index: -2;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(46, 125, 50, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(21, 101, 192, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 111, 0, 0.05) 0%, transparent 70%);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.title-line {
    display: block;
}

.title-line.highlight {
    color: var(--primary);
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    font-family: 'Archivo', sans-serif;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

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

/* ===== About Section ===== */
.about {
    padding: 5rem 0;
    background: white;
}

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

.text-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

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

/* ===== Photo Slider ===== */
.photo-slider {
    position: relative;
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
}

.slider-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: white;
}

.slider-track {
    position: relative;
    width: 100%;
    height: 450px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.slider-btn:hover {
    background: white;
    color: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 16px;
}

.next-btn {
    right: 16px;
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.85);
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: rgba(46, 125, 50, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary);
    transform: scale(1.2);
}

.dot:hover {
    background: var(--primary-light);
}

/* ===== Advantages Section ===== */
.advantages {
    padding: 5rem 0;
    background: var(--bg-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.advantage-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-title {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
}

.advantage-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== Catalog Section ===== */
.catalog {
    padding: 5rem 0;
    background: white;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.catalog-card {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.catalog-image {
    overflow: hidden;
    position: relative;
}

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

.catalog-content {
    padding: 1.5rem;
    background: white;
}

.catalog-title {
    font-size: 1.375rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.catalog-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.catalog-btn {
    padding: 0.5rem 1.25rem;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
}

.catalog-btn:hover {
    background: var(--primary-dark);
}

.catalog-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ===== Clients Section ===== */
.clients {
    padding: 5rem 0;
    background: var(--bg-light);
}

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

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

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

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

.client-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.client-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ===== Contacts Section ===== */
.contacts {
    padding: 5rem 0;
    background: white;
}

.contacts-content {
    display: grid;
    gap: 4rem;
    margin-top: 3rem;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.info-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.info-icon {
    font-size: 2rem;
    line-height: 1;
}

.info-text h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.info-text p {
    color: var(--text-secondary);
    margin: 0;
}

.info-text a {
    color: var(--primary);
    font-weight: 500;
}

.info-text a:hover {
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===== Form Styles ===== */
.contact-form-wrapper {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 16px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.checkbox {
    flex-direction: row;
    align-items: center;
}

.form-group.checkbox input {
    width: auto;
    margin-right: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

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

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

/* ===== Map ===== */
.map-container {
    margin-top: 4rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map {
    width: 100%;
    height: 400px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

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

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

.footer-col h4 {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links,
.footer-contacts {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a,
.footer-contacts a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contacts a:hover {
    color: white;
    padding-left: 0.5rem;
}

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

.subscribe-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.subscribe-form input {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    font-family: inherit;
}

.subscribe-form button {
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: white;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-hover);
    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);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 1rem;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-light);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border-color);
}

.modal-content h3 {
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

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

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

/* Tablet */
@media (max-width: 1199px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contacts-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    /* Photo slider adjustments for tablets */
    .photo-slider {
        max-width: 100%;
    }
    
    .slider-track {
        height: 400px;
    }
}

@media (max-width: 768px) {
    /* Header */
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .header-actions .phone {
        display: none;
    }
    
    .header-actions .btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .burger {
        display: flex;
    }
    
    .burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .burger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    /* Hero */
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Sections */
    section {
        padding: 3rem 0;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .catalog-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .clients-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    /* Photo slider adjustments for mobile */
    .photo-slider {
        max-width: 100%;
        margin: 0;
    }
    
    .slider-track {
        height: 300px;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
    }
    
    .prev-btn {
        left: 10px;
    }
    
    .next-btn {
        right: 10px;
    }
    
    .slider-dots {
        padding: 15px;
        margin-top: -50px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    /* Hero */
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    /* Photo slider adjustments for small mobile */
    .slider-track {
        height: 250px;
    }
    
    .slider-btn {
        width: 36px;
        height: 36px;
    }
    
    .prev-btn {
        left: 8px;
    }
    
    .next-btn {
        right: 8px;
    }
    
    /* Cards */
    .catalog-grid {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        grid-template-columns: 1fr;
    }
    
    /* Contact Form */
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    /* Modal */
    .modal-content {
        padding: 2rem 1.5rem;
    }
}

/* ===== Animations ===== */
@media (prefers-reduced-motion: no-preference) {
    .advantage-card,
    .catalog-card,
    .client-card {
        animation: fadeInUp 0.6s ease-out backwards;
    }
    
    .advantage-card:nth-child(1) { animation-delay: 0.1s; }
    .advantage-card:nth-child(2) { animation-delay: 0.2s; }
    .advantage-card:nth-child(3) { animation-delay: 0.3s; }
    .advantage-card:nth-child(4) { animation-delay: 0.4s; }
    .advantage-card:nth-child(5) { animation-delay: 0.5s; }
    .advantage-card:nth-child(6) { animation-delay: 0.6s; }
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .burger,
    .back-to-top,
    .modal,
    .scroll-indicator {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
    
    .container {
        max-width: 100%;
    }
}