/* ===== CSS Variables ===== */
:root {
    --primary-color: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f2442;
    --secondary-color: #ed8936;
    --secondary-light: #f6ad55;
    --accent-color: #38a169;
    --text-dark: #1a202c;
    --text-light: #718096;
    --text-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --bg-dark: #1a202c;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--secondary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-block {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--bg-white);
    padding: 15px 0;
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-white);
    transition: var(--transition);
}

.navbar.scrolled .logo {
    color: var(--primary-color);
}

.logo-icon {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-white);
    position: relative;
    padding: 5px 0;
}

.navbar.scrolled .nav-link {
    color: var(--text-dark);
}

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

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-white);
    position: relative;
    transition: var(--transition);
}

.navbar.scrolled .hamburger,
.navbar.scrolled .hamburger::before,
.navbar.scrolled .hamburger::after {
    background: var(--text-dark);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background: var(--text-white);
    transition: var(--transition);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1920&h=1080&fit=crop') center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.9) 0%, rgba(15, 36, 66, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
    max-width: 900px;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 4px;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 500;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    color: var(--text-white);
    font-size: 20px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.text-left {
    text-align: left;
}

.section-title {
    font-size: 42px;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header:not(.text-left) .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-top: 20px;
}

/* ===== Services Section ===== */
.services {
    padding: 100px 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    font-size: 32px;
    color: var(--text-white);
}

.service-card h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.service-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== Catalog Section ===== */
.catalog {
    padding: 100px 0;
    background: var(--bg-white);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.catalog-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 3/2;
    cursor: pointer;
}

.catalog-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.catalog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(26, 54, 93, 0.95) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 25px;
    opacity: 0;
    transition: var(--transition);
}

.catalog-item:hover .catalog-overlay {
    opacity: 1;
}

.catalog-item:hover img {
    transform: scale(1.1);
}

.catalog-overlay h3 {
    font-size: 22px;
    color: var(--text-white);
    margin-bottom: 5px;
}

.catalog-overlay p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.about-image {
    position: relative;
}

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

.about-badge {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: var(--secondary-color);
    color: var(--text-white);
    padding: 25px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
}

.badge-text {
    font-size: 14px;
    font-weight: 500;
}

.about-content .section-title::after {
    left: 0;
    transform: none;
}

.about-text {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-dark);
}

.feature i {
    color: var(--accent-color);
    font-size: 18px;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background: var(--bg-white);
}

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

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.contact-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: 50%;
    color: var(--text-white);
    font-size: 20px;
    margin-bottom: 20px;
}

.contact-details h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.contact-details p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.contact-details a {
    color: var(--text-light);
}

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

.contact-form-wrapper {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--border-radius);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    font-family: 'Open Sans', sans-serif;
    font-size: 15px;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    background: var(--bg-white);
    transition: var(--transition);
}

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

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

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-contact i {
    margin-top: 4px;
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding: 25px 0;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-wrapper {
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: var(--transition);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--text-dark);
        font-size: 16px;
    }
    
    .hero-title {
        font-size: 36px;
        letter-spacing: 2px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .catalog-grid {
        grid-template-columns: 1fr;
    }
    
    .about-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-badge {
        right: 20px;
        bottom: -20px;
    }
    
    .section-header.text-left {
        text-align: center;
    }
    
    .about-features {
        justify-items: center;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-contact p {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 25px;
    }
}