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

:root {
    --primary-color: #D4AF37;
    --secondary-color: #FFD700;
    --accent-color: #C9A961;
    --dark-color: #1a1a1a;
    --light-color: #f5f5f5;
    --white: #ffffff;
    --text-color: #333333;
    --gray: #666666;
    --black: #000000;
    --gold-gradient: linear-gradient(135deg, #D4AF37 0%, #FFD700 100%);
}

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: var(--black);
    box-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand .logo {
    height: 50px;
    width: auto;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: 0.3s;
}

.hero {
    margin-top: 80px;
    padding: 80px 0;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #2a2a2a 100%);
    color: var(--white);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

.hero-image {
    flex: 1;
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gold-gradient);
    color: var(--black);
    font-weight: 700;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #FFD700 0%, #D4AF37 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.5);
}

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

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

.btn-small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

.btn-full {
    width: 100%;
}

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gold-gradient);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--gray);
}

.about {
    background: var(--white);
}

.about-content {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-text {
    flex: 1;
}

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

.about-text p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-item h4 {
    font-size: 2.5rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--gray);
    font-size: 0.9rem;
}

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

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.product-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.product-info p {
    color: var(--gray);
    margin-bottom: 1rem;
}

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

.accordion-container {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--white);
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    background: var(--white);
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
    transition: all 0.3s;
}

.accordion-header:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

.accordion-header.active {
    background: var(--gold-gradient);
    color: var(--black);
}

.accordion-icon {
    font-size: 1.5rem;
    font-weight: 700;
    transition: transform 0.3s;
}

.accordion-header.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out;
    background: var(--white);
}

.accordion-content.active {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
}

.pdf-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
}

.pdf-loader.hidden {
    display: none;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.pdf-loader p {
    color: var(--gray);
    font-size: 1rem;
}

.pdf-viewer {
    width: 100%;
    height: 600px;
    border: none;
    display: none;
}

.pdf-viewer.loaded {
    display: block;
}

.pdf-download-btn {
    margin: 1.5rem;
    display: inline-block;
}

.benefits {
    background: var(--black);
    color: var(--white);
}

.benefits .section-header h2 {
    color: var(--white);
}

.benefits .section-header p {
    color: var(--light-color);
}

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

.benefit-card {
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.3s;
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

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

.benefit-card h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.benefit-card p {
    color: var(--light-color);
}

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

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.testimonial-image {
    text-align: center;
    margin-bottom: 1rem;
}

.testimonial-image img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.testimonial-content p {
    font-style: italic;
    color: var(--gray);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.testimonial-content h4 {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.testimonial-content span {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.contact {
    background: var(--white);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 600;
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(46, 204, 113, 0.12);
    color: #2ecc71;
    border-color: rgba(46, 204, 113, 0.4);
}

.alert-error {
    background: rgba(231, 76, 60, 0.12);
    color: #e74c3c;
    border-color: rgba(231, 76, 60, 0.4);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--light-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}

.footer {
    background: var(--black);
    color: var(--white);
    padding: 1.5rem 0;
    text-align: center;
    border-top: 2px solid var(--primary-color);
}

.footer p {
    color: var(--light-color);
    margin: 0;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--black);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(212, 175, 55, 0.2);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .about-content {
        flex-direction: column;
    }

    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }


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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

html {
    scroll-behavior: smooth;
}

section {
    scroll-margin-top: 80px;
}