/* ============================================
   Components
   ============================================ */

/* ---- Site Header ---- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: box-shadow var(--transition-base);
    height: var(--header-height);
}

.site-header.is-scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo img {
    height: 40px;
    width: auto;
}

.main-nav {
    display: none;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: rgba(11, 61, 145, 0.06);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Language Switcher */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: 2px;
}

.lang-btn {
    display: block;
    padding: 4px 10px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--color-text);
}

.lang-btn.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: all var(--transition-base);
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

.mobile-nav-overlay.is-open {
    display: block;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--color-bg);
    z-index: 1001;
    transition: right var(--transition-base);
    padding: var(--space-3xl) var(--space-xl);
    overflow-y: auto;
}

.mobile-nav.is-open {
    right: 0;
}

.mobile-nav .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
}

.mobile-nav .nav-link {
    padding: var(--space-md);
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav .lang-switch {
    margin-top: var(--space-xl);
    justify-content: center;
}

/* ---- Hero Slideshow ---- */
.hero {
    position: relative;
    height: 80vh;
    min-height: 500px;
    max-height: 800px;
    overflow: hidden;
}

.hero-slides {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide.active {
    opacity: 1;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(6, 37, 85, 0.75) 0%, rgba(11, 61, 145, 0.55) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    height: 100%;
    color: var(--color-text-inverse);
    padding: 0 var(--space-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-content h1 {
    color: var(--color-text-inverse);
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    max-width: 700px;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s ease 0.3s forwards;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin-bottom: var(--space-xl);
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s ease 0.5s forwards;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s ease 0.7s forwards;
}

@keyframes heroFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slideshow Indicators */
.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
}

.hero-indicator {
    width: 40px;
    height: 4px;
    background: rgba(255,255,255,0.4);
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.hero-indicator.active {
    background: var(--color-text-inverse);
    width: 60px;
}

/* ---- Page Hero (sub-pages) ---- */
.page-hero {
    position: relative;
    height: 300px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.page-hero img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-hero .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(6, 37, 85, 0.8) 0%, rgba(11, 61, 145, 0.6) 100%);
}

.page-hero-content {
    position: relative;
    z-index: 10;
    color: var(--color-text-inverse);
}

.page-hero-content h1 {
    color: var(--color-text-inverse);
    margin-bottom: var(--space-sm);
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    opacity: 0.8;
}

.breadcrumb a {
    color: var(--color-text-inverse);
    opacity: 0.8;
}

.breadcrumb a:hover {
    opacity: 1;
    color: var(--color-text-inverse);
}

.breadcrumb span {
    opacity: 0.6;
}

/* ---- Value Props (Stats) ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.stat-card {
    text-align: center;
    padding: var(--space-xl);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

/* ---- Product Cards ---- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.product-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.product-card a {
    display: block;
    color: inherit;
}

.product-card-img {
    height: 220px;
    overflow: hidden;
    background: var(--color-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-card-img img {
    transform: scale(1.05);
}

.product-card-body {
    padding: var(--space-lg);
}

.product-card-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    background: rgba(11, 61, 145, 0.08);
    padding: 2px 10px;
    border-radius: 100px;
    margin-bottom: var(--space-sm);
}

.product-card-model {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.product-card-name {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.product-card-specs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.spec-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 3px 10px;
    background: var(--color-bg-alt);
    border-radius: 100px;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

/* ---- Category Cards ---- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-lg);
}

.category-card {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    cursor: pointer;
}

.category-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.category-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 61, 145, 0.08);
    border-radius: var(--radius-lg);
    font-size: 1.75rem;
}

.category-card h3 {
    font-size: 1.0625rem;
    margin-bottom: var(--space-xs);
}

.category-card p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ---- Product Filter Tabs ---- */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    justify-content: center;
}

.filter-tab {
    padding: 8px 20px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.filter-tab.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

/* ---- Spec Table ---- */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xl) 0;
}

.spec-table th,
.spec-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9375rem;
}

.spec-table th {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 600;
    white-space: nowrap;
    width: 200px;
}

.spec-table tr:nth-child(even) td {
    background: var(--color-bg-alt);
}

.spec-table tr:hover td {
    background: rgba(11, 61, 145, 0.04);
}

/* ---- Timeline ---- */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-2xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-bg);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-year {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.timeline-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.timeline-content p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

/* ---- FAQ Accordion ---- */
.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: var(--space-lg);
    background: var(--color-bg);
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-bg-alt);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--space-md);
}

.faq-item.is-open .faq-question::after {
    content: '-';
}

.faq-answer {
    display: none;
    padding: 0 var(--space-lg) var(--space-lg);
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.faq-item.is-open .faq-answer {
    display: block;
}

/* ---- Contact Form ---- */
.contact-form {
    max-width: 600px;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 61, 145, 0.1);
}

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

/* ---- Contact Info Cards ---- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.contact-card {
    padding: var(--space-2xl);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.contact-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.contact-card p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.contact-card a {
    color: var(--color-primary);
}

/* ---- Footer ---- */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.8);
    padding-top: var(--space-4xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
}

.footer-col h4 {
    color: var(--color-text-inverse);
    font-size: 1rem;
    margin-bottom: var(--space-lg);
}

.footer-tagline {
    font-size: 0.9375rem;
    margin-top: var(--space-md);
    opacity: 0.7;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-col ul a {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-col ul a:hover {
    color: var(--color-text-inverse);
}

.footer-col address {
    font-style: normal;
    font-size: 0.875rem;
    line-height: 1.8;
}

.footer-col address a {
    color: rgba(255,255,255,0.7);
}

.footer-col address a:hover {
    color: var(--color-text-inverse);
}

.footer-bottom {
    margin-top: var(--space-3xl);
    padding: var(--space-lg) 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8125rem;
    opacity: 0.6;
    text-align: center;
}

/* ---- Product Detail Layout ---- */
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.product-detail-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-alt);
}

.product-detail-img img {
    width: 100%;
}

.product-detail-info h1 {
    font-size: 2rem;
    margin-bottom: var(--space-xs);
}

.product-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.product-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.product-highlight {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.product-highlight-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 61, 145, 0.1);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.product-highlight-text strong {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text);
}

.product-highlight-text span {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

/* ---- Features Grid ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    padding: var(--space-2xl);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 61, 145, 0.08);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

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

/* ---- CTA Section ---- */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-inverse);
    text-align: center;
    padding: var(--space-4xl) 0;
}

.cta-section h2 {
    color: var(--color-text-inverse);
    margin-bottom: var(--space-md);
}

.cta-section p {
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    font-size: 1.125rem;
}

/* ---- Location Grid ---- */
.location-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-md);
    text-align: center;
}

.location-item {
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: 0.9375rem;
    font-weight: 500;
}

/* ---- Comparison Table ---- */
.comparison-table-wrapper {
    overflow-x: auto;
    margin: var(--space-xl) 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    font-size: 0.875rem;
}

.comparison-table th:last-child,
.comparison-table td:last-child {
    border-right: none;
}

.comparison-table thead th {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.comparison-table tbody th {
    background: var(--color-bg-alt);
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.comparison-table tbody tr:hover td {
    background: rgba(11, 61, 145, 0.03);
}