:root {
    --primary-color: #FFD700;
    --secondary-color: #FFA500;
    --dark-color: #121212;
    --light-color: #f8f8f8;
    --gray-color: #2a2a2a;
    --success-color: #4CAF50;
    --error-color: #F44336;
    --font-main: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Montserrat', sans-serif;
    --transition: all 0.3s ease;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--light-color);
    background-color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
}

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

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

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

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

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.section-header p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    background-color: rgba(18, 18, 18, 0.9);
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

header.scrolled {
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.tagline {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav ul li a {
    position: relative;
    padding: 5px 0;
    font-weight: 600;
}

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

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

.hero-section {
    height: 100vh;
    min-height: 700px;
    position: relative;
    background: url('img/hero-bg.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.5));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content h2 span {
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--primary-color);
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

.features {
    padding: 100px 0;
    background-color: var(--gray-color);
}

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

.feature-card {
    background-color: var(--dark-color);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

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

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.product-section {
    padding: 100px 0;
    background-color: var(--dark-color);
}

.product-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.product-image {
    flex: 1;
    position: relative;
}

.product-img {
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: var(--dark-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.product-info {
    flex: 1;
}

.product-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.product-info p {
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.spec-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.about-section {
    padding: 100px 0;
    background-color: var(--gray-color);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-info {
    flex: 1;
}

.about-info p {
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.mv-item {
    background-color: var(--dark-color);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.mv-item h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.mv-item i {
    font-size: 1.2rem;
}

.about-image {
    flex: 1;
    text-align: center;
}

.about-image img {
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.contact-section {
    padding: 100px 0;
    background-color: var(--dark-color);
}

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-form {
    flex: 1;
    background-color: var(--gray-color);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    border: none;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
}

.info-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 215, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--gray-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--dark-color);
    transform: translateY(-5px);
}

footer {
    background-color: #111;
    padding: 70px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-links h4 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

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

.footer-newsletter h4 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-newsletter form {
    display: flex;
}

.footer-newsletter input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 5px 0 0 5px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
}

.footer-newsletter button {
    padding: 0 20px;
    background-color: var(--primary-color);
    color: var(--dark-color);
    border: none;
    border-radius: 0 5px 5px 0;
    cursor: pointer;
    transition: var(--transition);
}

.footer-newsletter button:hover {
    background-color: var(--secondary-color);
}

.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.legal-links {
    display: flex;
    gap: 20px;
}

.legal-links a:hover {
    color: var(--primary-color);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--dark-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--box-shadow);
}

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

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

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal-content {
    background-color: var(--dark-color);
    padding: 40px;
    border-radius: 15px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: var(--box-shadow-hover);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

.modal h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.modal p {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

@media (max-width: 992px) {
    .hero-content h2 {
        font-size: 2.8rem;
    }
    
    .product-content,
    .about-content,
    .contact-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .product-info,
    .about-info {
        text-align: center;
    }
    
    .specs,
    .mission-vision {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--dark-color);
        padding: 80px 30px 30px;
        transition: var(--transition);
        z-index: 999;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        gap: 20px;
    }
    
    .mobile-menu-btn {
        display: block;
        z-index: 1000;
    }
    
    .hero-content h2 {
        font-size: 2.2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .legal-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

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

.fade-in {
    animation: fadeIn 1s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}