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

:root {
    --primary-blue: #1e3a5f;
    --secondary-blue: #2c5282;
    --accent-green: #2e7d32;
    --light-green: #4caf50;
    --bg-gray: #f5f5f5;
    --text-dark: #333;
    --text-light: #666;
    --white: #ffffff;
    --border-color: #e0e0e0;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

/* Hero Section */
.hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.9), rgba(44, 82, 130, 0.85)), 
                url('https://sspark.genspark.ai/cfimages?u1=yQ4Xiq%2BXRp3uoR90vDPGARp9TLpjENxe5oVRHq0XlK%2BDtGpkCLGa4oyqsYhsBJn8LrHUvV%2B4%2FNVtmy2gzM6OHbt%2FcaUr%2BCe8h%2F76eKTIpiSVYtaA2dcNEv5pArbA&u2=ZkFiNZnBp%2BK7f%2F5J&width=2560');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hero-content {
    max-width: 900px;
    padding: 0 20px;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero .subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
}

.hero .badge {
    display: inline-block;
    background-color: var(--accent-green);
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    margin-top: 1rem;
}

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

/* Section Styles */
section {
    padding: 80px 0;
}

section:nth-child(even) {
    background-color: var(--bg-gray);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Overview Section */
.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.overview-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.overview-text h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.overview-text ul {
    list-style: none;
    padding-left: 0;
}

.overview-text li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.overview-text li:before {
    content: "✓ ";
    color: var(--accent-green);
    font-weight: bold;
    margin-right: 10px;
}

.overview-image {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* Technical Data Cards */
.tech-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.tech-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.tech-card i {
    font-size: 3rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
}

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

.tech-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-blue);
    margin: 10px 0;
}

.tech-card .unit {
    font-size: 1rem;
    color: var(--text-light);
}

/* Authorization Section */
.auth-timeline {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    margin-top: 40px;
}

.auth-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.auth-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.auth-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.auth-content h4 {
    color: var(--primary-blue);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.auth-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Location Section */
.location-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.location-info {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.location-info h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.location-info h3 i {
    margin-right: 15px;
    color: var(--accent-green);
}

.location-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 15px;
}

.location-info strong {
    color: var(--primary-blue);
    font-weight: 600;
}

.location-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* Investment Section */
.investment-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.investment-card {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.investment-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.investment-card .amount {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 20px 0;
}

.investment-card p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Gallery Section */
.gallery-slider {
    position: relative;
    max-width: 1000px;
    margin: 40px auto;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.gallery-container {
    display: flex;
    transition: transform 0.5s ease;
}

.gallery-slide {
    min-width: 100%;
    height: 500px;
}

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

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}

.gallery-btn {
    background: rgba(255,255,255,0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-btn:hover {
    background: var(--white);
    transform: scale(1.1);
}

/* Documentation Section */
.documentation {
    background: var(--bg-gray);
}

.doc-categories {
    margin-top: 40px;
}

.doc-category {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.doc-category h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.doc-category h3 i {
    margin-right: 15px;
    color: var(--accent-green);
    font-size: 1.8rem;
}

.doc-items {
    display: grid;
    gap: 20px;
}

.doc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--bg-gray);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.doc-item:hover {
    background: #e8e8e8;
    transform: translateX(5px);
}

.doc-info {
    display: flex;
    align-items: center;
    flex: 1;
}

.doc-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-green);
    color: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
}

.doc-details h4 {
    color: var(--primary-blue);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.doc-details p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.doc-download {
    background: var(--accent-green);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.doc-download:hover {
    background: var(--light-green);
    transform: scale(1.05);
}

.doc-placeholder {
    opacity: 0.6;
    font-style: italic;
    color: var(--text-light);
}

/* Footer */
footer {
    background: var(--primary-blue);
    color: var(--white);
    text-align: center;
    padding: 30px 20px;
}

footer p {
    font-size: 1rem;
    opacity: 0.9;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

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

    .overview-content,
    .location-grid {
        grid-template-columns: 1fr;
    }

    .tech-cards {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }

    .gallery-slide {
        height: 300px;
    }
}