:root {
    --primary-color: #0A3D62;
    --secondary-color: #F39C12;
    --dark-color: #2C3E50;
    --light-color: #ECF0F1;
    --text-color: #333;
    --text-muted: #666;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #e67e22;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-block {
    width: 100%;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color);
    transition: color 0.2s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

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

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

.admin-link {
    color: var(--text-muted);
}

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

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a5276 50%, #2874a6 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    text-align: center;
    color: white;
    padding: 2rem;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero .btn-primary {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    opacity: 0.8;
}

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

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

/* Services Section */
.services {
    padding: 6rem 0;
    background: #f8f9fa;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), #2874a6);
    border-radius: 20px;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.service-list {
    margin-top: 1rem;
    text-align: left;
}

.service-list li {
    padding: 0.25rem 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.service-list li::before {
    content: '• ';
    color: var(--secondary-color);
}

/* Regions Section */
.regions {
    padding: 6rem 0;
    background: white;
}

.regions-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.region-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), #2874a6);
    color: white;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s;
}

.region-badge:hover {
    transform: scale(1.05);
}

.region-badge i {
    color: var(--secondary-color);
}

/* News Ticker */
.news-ticker {
    background: var(--dark-color);
    color: white;
    padding: 0.75rem 0;
}

.news-ticker .container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.ticker-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    white-space: nowrap;
}

.ticker-header i {
    color: var(--secondary-color);
}

.ticker-content {
    display: flex;
    gap: 2rem;
    overflow: hidden;
}

.ticker-item {
    white-space: nowrap;
    transition: color 0.2s;
}

.ticker-item:hover {
    color: var(--secondary-color);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: #f8f9fa;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: var(--text-muted);
    margin: 0;
}

.contact-form-wrapper {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.form-group label .required {
    color: #e74c3c;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

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

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

/* Page Header */
.page-header {
    padding: 8rem 0 3rem;
    background: linear-gradient(135deg, var(--primary-color), #2874a6);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    opacity: 0.9;
    font-size: 1.125rem;
}

/* Standards Section */
.standards-section {
    padding: 3rem 0;
}

.standards-toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-box {
    display: flex;
    flex: 1;
    max-width: 500px;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-right: none;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-search {
    padding: 0.75rem 1.25rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
}

.standards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.standard-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}

.standard-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.standard-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e74c3c;
    color: white;
    border-radius: 12px;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.standard-info {
    flex: 1;
}

.standard-info h3 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.standard-code,
.standard-date {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

/* News Section */
.news-section {
    padding: 3rem 0;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
}

.news-item:hover {
    transform: translateX(8px);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    flex-shrink: 0;
}

.news-day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.news-month {
    font-size: 0.75rem;
    opacity: 0.9;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.news-content h3 a {
    transition: color 0.2s;
}

.news-content h3 a:hover {
    color: var(--secondary-color);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.news-source i,
.news-auto i {
    margin-right: 0.25rem;
}

.news-auto {
    color: #27ae60;
}

.news-link {
    padding: 0.5rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-link {
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    color: var(--text-color);
    transition: all 0.2s;
}

.page-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-link.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Contact Page */
.contact-page {
    padding: 3rem 0;
}

.contact-page .contact-wrapper {
    grid-template-columns: 1fr 1.5fr;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-section p,
.footer-section li {
    opacity: 0.8;
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    transition: color 0.2s;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-section i {
    margin-right: 0.5rem;
    width: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.875rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: transform 0.3s;
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 0.75rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .contact-wrapper,
    .contact-page .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-header h2 {
        font-size: 2rem;
    }
    
    .services-grid,
    .standards-grid {
        grid-template-columns: 1fr;
    }
    
    .regions-grid {
        gap: 1rem;
    }
    
    .region-badge {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    .news-item {
        flex-direction: column;
        text-align: center;
    }
    
    .news-meta {
        justify-content: center;
    }
}