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

html {
    scroll-behavior: smooth;
}

body {
    font-family: sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

/* CSS Variables for Colors */
:root {
    --primary-color: hsl(30.13deg 95.85% 47.25%); /* Orange */
    --secondary-color: hsl(205.88deg 100% 31.37%); /* Blue */
    --accent-color: hsl(208.57deg 12.73% 32.35%); /* Gray */
    --text-dark: #333;
    --text-light: #666;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --border-color: #e9ecef;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    line-height: 1.3;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 80px;
    width: auto;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

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

/* Hero Section */
.hero {
    padding: 120px 40px 80px;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    display: flex;
    align-items: center;
    min-height: 80vh;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

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

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

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Products Section */
.products {
    padding: 80px 0;
    background: var(--white);
}

/* Slider */
.slider-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto 4rem;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.slider {
    position: relative;
    height: 500px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    display: flex;
    align-items: center;
    background: var(--light-gray);
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 50%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    width: 50%;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slide-content h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

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

/* Slider Controls */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

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

.slider-btn.prev {
    left: 20px;
}

.slider-btn.next {
    right: 20px;
}

/* Slider Dots */
.slider-dots {
    text-align: center;
    margin-top: 20px;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active,
.dot:hover {
    background: var(--primary-color);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

.feature h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.feature p {
    color: var(--text-light);
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--light-gray);
}

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

.about-text h2 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.about-text h3 {
    color: var(--text-dark);
    margin: 2rem 0 1rem;
}

.about-list {
    list-style: none;
    margin-bottom: 2rem;
}

.about-list li {
    padding: 0.5rem 0;
    color: var(--text-light);
    font-size: 1.1rem;
}

.about-advantages h3 {
    margin-bottom: 1rem;
}

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

.advantage {
    background: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    color: var(--text-dark);
    font-weight: 500;
    box-shadow: var(--shadow);
}

.about-img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--white);
}

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

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 50px;
}

.contact-details h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
}

.contact-link:hover {
    color: var(--secondary-color);
}

.messenger-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.messenger-btn {
    padding: 0.5rem 1rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.messenger-btn.whatsapp {
    background: #25D366;
    color: var(--white);
}

.messenger-btn.viber {
    background: #665CAC;
    color: var(--white);
}

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

.contact-img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

/* Footer */
.footer {
    background: var(--accent-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.footer-text p {
    color: #ccc;
}

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

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #ccc;
}

.footer-bottom p {
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 112px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        box-shadow: var(--shadow);
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 0;
    }

    .hero-buttons {
        justify-content: center;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .slide {
        flex-direction: column;
        height: auto;
        min-height: 500px;
    }

    .slide img {
        width: 100%;
    }

    .slide-content {
        width: 100%;
        padding: 1.5rem;
    }

    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .slider-btn.prev {
        left: 10px;
    }

    .slider-btn.next {
        right: 10px;
    }

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

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

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

    .advantages {
        justify-content: center;
    }

    .messenger-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 120px 20px 60px;
        flex-direction: column;
    }

    .hero-image {
        margin-top: 20px;
    }

    .products,
    .about,
    .contact {
        padding: 10px 0;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

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

    .slide-content {
        padding: 1rem;
    }

    .feature {
        padding: 1.5rem;
    }

    .contact-item {
        padding: 1rem;
    }
}

/* Performance Optimizations */
img {
    max-width: 100%;
    height: auto;
    loading: lazy;
}

/* Smooth animations */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.contact-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}