/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    /* Colors */
    --color-white: #FFFFFF;
    --color-light-gray: #F8F9FA;
    --color-dark: #1A1A1A;
    --color-text: #4A4A4A;
    --color-accent: #0b469a;
    --color-accent-hover: #083473;

    /* Typography */
    --font-primary: 'Inter', sans-serif;

    /* Layout & Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Shadows & Transitions */
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.08);
    --transition-standard: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-dark);
    font-weight: 600;
    line-height: 1.2;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-light {
    background-color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.section-gray {
    background-color: var(--color-light-gray);
    padding: var(--spacing-xl) 0;
}

.section-primary {
    background-color: #0b469a;
    padding: var(--spacing-xl) 0;
}

.section-primary .section-header h2,
.section-primary .section-header p {
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-standard);
    border: 2px solid transparent;
}

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

.nav-cta .btn-primary {
    background-color: var(--color-primary);
    border-color: transparent;
}

.nav-cta .btn-primary:hover {
    background-color: #083371;
    /* A slightly darker blue for hover */
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.btn-large {
    padding: 16px 36px;
    font-size: 1.125rem;
}

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

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 12px 0;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

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

.logo img {
    height: 32px;
    width: auto;
    display: block;
    transition: var(--transition-standard);
}

.navbar:not(.scrolled) .logo img {
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
}

.navbar:not(.scrolled) .nav-links a {
    color: rgba(255, 255, 255, 0.9);
}

.navbar.scrolled .nav-links a {
    color: var(--color-dark);
}

.nav-links a:hover {
    color: var(--color-accent) !important;
}

.navbar:not(.scrolled) .nav-cta .btn-primary {
    background-color: transparent;
    color: rgba(255, 255, 255, 0.9);
    padding: 0;
}

.navbar:not(.scrolled) .nav-cta .btn-primary:hover {
    background-color: transparent;
    color: var(--color-white);
    transform: none;
}

.navbar.scrolled .nav-cta .btn-primary {
    background-color: transparent;
    color: var(--color-dark);
    padding: 0;
}

.navbar.scrolled .nav-cta .btn-primary:hover {
    background-color: transparent;
    color: var(--color-accent);
    transform: none;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.video-background video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0) 20%);
    z-index: -1;
}

/* ==========================================================================
   Featured Models
   ========================================================================== */
.slider-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-white);
    border: 1px solid #e0e0e0;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    z-index: 10;
    transition: all 0.3s ease;
    color: var(--color-primary);
}

.slider-btn:hover {
    box-shadow: var(--shadow-hover);
    background: var(--color-light-gray);
}

.prev-btn {
    left: -24px;
}

.next-btn {
    right: -24px;
}

@media (max-width: 768px) {
    .slider-btn {
        width: 36px;
        height: 36px;
    }

    .prev-btn {
        left: -10px;
    }

    .next-btn {
        right: -10px;
    }
}

.models-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    /* Hide scrollbar */
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.models-grid::-webkit-scrollbar {
    display: none;
}

.model-card {
    display: block;
    /* 4 items per view */
    flex: 0 0 calc((100% - (3 * var(--spacing-md))) / 4);
    scroll-snap-align: start;
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

@media (max-width: 1400px) {
    .model-card {
        flex: 0 0 calc((100% - (2 * var(--spacing-md))) / 3);
        /* 3 items */
    }
}

@media (max-width: 1200px) {
    .model-card {
        flex: 0 0 calc((100% - (2 * var(--spacing-md))) / 3);
        /* 3 items */
    }
}

@media (max-width: 900px) {
    .model-card {
        flex: 0 0 calc((100% - var(--spacing-md)) / 2);
        /* 2 items */
    }
}

@media (max-width: 600px) {
    .model-card {
        flex: 0 0 calc((100% - var(--spacing-md)) / 2);
        /* 2 items */
    }
}

@media (max-width: 400px) {
    .model-card {
        flex: 0 0 85%;
        /* 1 item with peek */
    }
}

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

.model-image {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--color-light-gray);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    position: relative;
}

.model-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.model-info {
    padding: var(--spacing-md);
}

.model-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.model-info p {
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 1.5rem;
}

.explore-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.95rem;
}

/* ==========================================================================
   Bento Grid Advantages
   ========================================================================== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
    gap: var(--spacing-md);
}

.bento-item {
    background-color: var(--color-white);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-standard);
}

.bento-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* Bento Background Slider & Image */
.bento-item.has-bg-slider,
.bento-item.has-bg-image {
    position: relative;
    overflow: hidden;
    color: var(--color-white) !important;
}

.bento-item.has-bg-slider .bento-content h3,
.bento-item.has-bg-image .bento-content h3 {
    color: #ffffff !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.5);
}

.bento-item.has-bg-slider .bento-content p,
.bento-item.has-bg-image .bento-content p {
    color: #ffffff !important;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8), 0 0 8px rgba(0, 0, 0, 0.5);
}

.bg-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.bg-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bg-slider-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    z-index: 1;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.bg-slider-track img {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bg-slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.9));
    z-index: 2;
}

.bento-content-overlay {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    height: 100%;
    justify-content: flex-end;
}

.bento-item.has-bg-slider .bento-icon {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    width: max-content;
    padding: 12px;
    border-radius: 50%;
    margin-bottom: auto;
    /* Push content to bottom */
}

.bento-item.has-bg-slider .bento-icon svg {
    margin: 0;
    display: block;
}

.bento-large {
    grid-column: span 2;
    grid-row: span 2;
    padding: var(--spacing-lg);
}

.bento-wide {
    grid-column: span 2;
}

.bento-icon {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.bento-large .bento-icon svg {
    width: 48px;
    height: 48px;
}

.bento-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.bento-large .bento-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.bento-content p {
    color: #666;
    font-size: 0.95rem;
}

.bento-large .bento-content p {
    font-size: 1.125rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand .footer-logo {
    height: 40px;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.footer-brand p {
    color: #777;
    max-width: 300px;
}

.footer h4 {
    color: var(--color-dark);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.footer-contact p,
.footer-hours p {
    color: #666;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer-contact a {
    color: var(--color-accent);
}

.footer-contact a:hover {
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
    /* Blue color #0b469a */
    transition: var(--transition-standard);
}

.social-links a:hover svg {
    color: var(--color-accent);
    /* Red color #eb0a1e on hover */
    transform: translateY(-3px) scale(1.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    color: #888;
    font-size: 0.85rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a:hover {
    color: var(--color-accent);
}

/* ==========================================================================
   Product Detail Page
   ========================================================================== */
.product-detail {
    padding-top: 120px; /* Space for fixed navbar */
    padding-bottom: var(--spacing-xl);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.product-header h1 {
    font-size: 2.5rem;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.product-tagline {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.product-price {
    font-size: 1.1rem;
    color: #555;
    background: #f8f9fa;
    padding: 10px 15px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 2rem;
}

.product-price span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.product-image-large {
    background-color: var(--color-light-gray);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}

.product-image-large img {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: contain;
}

.product-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 3rem;
}

.spec-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid #eaeaea;
}

.spec-section:last-child {
    border-bottom: none;
}

.spec-section h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.spec-section h4 {
    font-size: 1.1rem;
    color: var(--color-dark);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.spec-section p {
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.spec-section ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.spec-section ul li {
    margin-bottom: 0.5rem;
}

.table-responsive {
    overflow-x: auto;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.price-table th,
.price-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.price-table th {
    background-color: var(--color-primary);
    color: white;
    font-weight: 600;
}

.price-table tr:hover {
    background-color: #f5f5f5;
}

.custom-list {
    column-count: 2;
    column-gap: 2rem;
}

.product-sidebar {
    position: relative;
}

.sidebar-box {
    position: sticky;
    top: 100px;
    background: var(--color-white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    border: 1px solid #eaeaea;
}

.sidebar-box h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-dark);
}

.sidebar-box p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }

    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
        color: var(--color-white);
    }

    .navbar.scrolled .mobile-menu-btn {
        color: var(--color-dark);
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .custom-list {
        column-count: 1;
    }

    .models-grid {
        grid-template-columns: 1fr;
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .bento-large,
    .bento-wide {
        grid-column: span 1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Product Gallery */
.product-gallery {
    position: relative;
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 12px;
    overflow: hidden;
    background: #f5f5f5;
}

.gallery-slider {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.gallery-slider::-webkit-scrollbar {
    display: none;
}

.gallery-slider img {
    flex: 0 0 100%;
    width: 100%;
    height: auto;
    object-fit: cover;
    scroll-snap-align: start;
    aspect-ratio: 16/9;
}

.gallery-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
    pointer-events: none;
}

.gallery-btn {
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-dark);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: var(--transition);
}

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