@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Roboto:wght@300;400;500;700&display=swap');

/* Define CSS variables at the highest level for shadow DOM access */
:root {
    color-scheme: light;
    /* Improved color palette with better contrast */
    --primary: #c02a2a;
    --primary-dark: #941e1e;
    --secondary: #1a2249;
    --secondary-light: #2d3a7c;
    --accent: #b45309;
    --accent-dark: #7c2d12;
    --accent-on-dark: #f4c15d;
    --dark: #121212;
    --light: #f8f8f8;
    --gray: #4a4a4a;
    --light-gray: #e5e5e5;
    --white: #ffffff;

    /* Semantic surfaces */
    --background: var(--light);
    --surface-base: #ffffff;
    --surface-alt: #f3f3f3;
    --text-color: var(--dark);
    --text-muted: #4f5660;
    --border-color: rgba(0, 0, 0, 0.08);
    --nav-background: rgba(18, 18, 18, 0.95);
    --nav-drawer-background: rgba(18, 18, 18, 0.98);
    --nav-text: #ffffff;
    --nav-link: #ffffff;
    --nav-link-hover: #f0f0f0;
    --community-text: #ffffff;
    --community-card-bg: rgba(255, 255, 255, 0.08);
    --community-card-text: #ffffff;
    --community-arrow-bg: rgba(255, 255, 255, 0.14);
    --community-arrow-color: #ffffff;

    /* Gradients */
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-light: linear-gradient(135deg, var(--primary-dark), var(--secondary-light));

    /* Fonts */
    --primary-font: 'Roboto', sans-serif;
    --heading-font: 'Orbitron', sans-serif;

    /* Shadows */
    --primary-shadow: 0 5px 15px rgba(192, 42, 42, 0.25);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-medium: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --background: #0f172a;
    --surface-base: #111827;
    --surface-alt: #1f2937;
    --text-color: #f8fafc;
    --text-muted: #cbd5f5;
    --border-color: rgba(148, 163, 184, 0.35);
    --primary: #f87171;
    --primary-dark: #ef4444;
    --secondary: #93c5fd;
    --secondary-light: #60a5fa;
    --accent: #facc15;
    --accent-dark: #f59e0b;
    --accent-on-dark: #7c2d12;
    --nav-background: rgba(15, 23, 42, 0.92);
    --nav-drawer-background: rgba(15, 23, 42, 0.98);
    --nav-text: #f8fafc;
    --nav-link: #f8fafc;
    --nav-link-hover: #facc15;
    --community-text: #0f172a;
    --community-card-bg: rgba(15, 23, 42, 0.12);
    --community-card-text: #0f172a;
    --community-arrow-bg: rgba(15, 23, 42, 0.22);
    --community-arrow-color: #0f172a;
    --card-shadow: 0 10px 30px rgba(2, 6, 23, 0.45);
    --hover-shadow: 0 20px 45px rgba(8, 47, 73, 0.35);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --background: #0f172a;
        --surface-base: #111827;
        --surface-alt: #1f2937;
        --text-color: #f8fafc;
        --text-muted: #cbd5f5;
        --border-color: rgba(148, 163, 184, 0.35);
        --primary: #f87171;
        --primary-dark: #ef4444;
        --secondary: #93c5fd;
        --secondary-light: #60a5fa;
    --accent: #facc15;
    --accent-dark: #f59e0b;
    --accent-on-dark: #7c2d12;
        --nav-background: rgba(15, 23, 42, 0.92);
        --nav-drawer-background: rgba(15, 23, 42, 0.98);
        --nav-text: #f8fafc;
        --nav-link: #f8fafc;
    --nav-link-hover: #facc15;
    --community-text: #0f172a;
    --community-card-bg: rgba(15, 23, 42, 0.12);
    --community-card-text: #0f172a;
    --community-arrow-bg: rgba(15, 23, 42, 0.22);
    --community-arrow-color: #0f172a;
        --card-shadow: 0 10px 30px rgba(2, 6, 23, 0.45);
        --hover-shadow: 0 20px 45px rgba(8, 47, 73, 0.35);
    }
}

/* Make sure Font Awesome is accessible to Shadow DOM */
[class*="fa-"] {
    font-family: 'Font Awesome 6 Free', 'Font Awesome 6 Brands';
}

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

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-on-dark) 45%, transparent);
}

main {
    display: block;
    background: var(--background);
}

/* === HEADER SPACING === */
body {
    font-family: var(--primary-font);
    background-color: var(--background);
    color: var(--text-color);
    overflow-x: hidden;
    line-height: 1.6;
    font-size: 16px;
    padding-top: 80px; /* Add space for fixed navbar */
}
 
body[data-scroll-lock="true"] {
    overflow: hidden;
}

/* Add consistent link colors - they remain the same color when visited */
a {
    color: var(--primary, #c02a2a);
    text-decoration: none;
    transition: var(--transition-medium);
}

a:visited {
    color: var(--primary, #c02a2a); /* Same as default link color */
}

a:hover, a:focus {
    color: var(--primary-dark, #941e1e);
}

/* Support for dsm-navbar component */
dsm-navbar {
    display: block;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

/* Ensure proper spacing when skipping to content */
.skip-to-content:focus + dsm-navbar + main {
    scroll-margin-top: 80px;
}

/* Skip to content link for keyboard users */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 10px 15px;
    z-index: 10000;
    transition: top 0.3s ease;
}

.skip-to-content:focus {
    top: 0;
}

/* === LOGO STYLES === */
.logo {
    display: flex;
    align-items: center;
}

.logo-symbol {
    position: relative;
    width: 50px;
    height: 50px;
}

.logo-symbol img {
    width: 100%;
    height: auto;
    display: block;
}

.diamond {
    position: absolute;
    width: 35px;
    height: 35px;
    background-color: var(--primary);
    transform: rotate(45deg);
    top: 7px;
    left: 7px;
}

.star {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-size: 20px;
}

.logo-text {
    margin-left: 15px;
    color: var(--white);
}

.logo-text h1 {
    font-family: var(--heading-font);
    font-size: 1.2rem;
    letter-spacing: 1px;
    margin: 0;
}

.logo-text span {
    font-size: 0.7rem;
    opacity: 0.7;
}

/* === NAV LINKS === */
.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-medium);
    position: relative;
    padding: 5px 0;
}

.nav-links a:visited {
    color: var(--white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a:focus::after {
    width: 100%;
}

/* Adjust nav-links for when they're slotted */
@media (max-width: 992px) {
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-links a {
        display: block;
        padding: 15px 0;
        width: 100%;
        text-align: center;
    }
}

/* === SECTION STYLES === */
.section {
    padding: 64px 1.5rem;
    background-color: var(--surface-base);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title h2 {
    font-family: var(--heading-font);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary);
}

.section-title p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-muted);
}

@media (min-width: 768px) {
    .section {
        padding: 88px 5%;
    }
}

@media (min-width: 1280px) {
    .section {
        padding: 110px 5%;
    }
}

/* === ABOUT SECTION === */
.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    align-items: center;
}

.about-image {
    flex: 1;
    min-width: 300px;
    max-width: 600px;
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

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

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--secondary);
    font-family: var(--heading-font);
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Button link styles - consistent colors */
.btn, .btn:visited {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    font-weight: 700;
    border-radius: 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-medium);
    box-shadow: var(--primary-shadow);
}

.btn:hover, 
.btn:focus {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(192, 42, 42, 0.3);
    background-color: var(--primary-dark);
}

/* === PRECURSORS SECTION === */
.vehicle-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.vehicle-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition-slow);
    cursor: pointer;
    height: 500px;
}

.vehicle-card:hover,
.vehicle-card:focus-within {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.vehicle-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark);
}

.vehicle-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.vehicle-card:hover .vehicle-image img,
.vehicle-card:focus-within .vehicle-image img {
    transform: scale(1.1);
    opacity: 0.7;
}

.vehicle-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: var(--white);
    transform: translateY(calc(100% - 100px));
    transition: var(--transition-slow);
}

.vehicle-card:hover .vehicle-overlay,
.vehicle-card:focus-within .vehicle-overlay {
    transform: translateY(0);
}

.vehicle-title {
    font-family: var(--heading-font);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.vehicle-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.vehicle-card:hover .vehicle-title::after,
.vehicle-card:focus-within .vehicle-title::after {
    width: 100px;
}

.vehicle-years {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 1rem;
}

.vehicle-desc {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease 0.1s;
}

.vehicle-card:hover .vehicle-desc,
.vehicle-card:focus-within .vehicle-desc {
    opacity: 1;
    transform: translateY(0);
}

.vehicle-specs {
    display: flex;
    gap: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease 0.2s;
}

.vehicle-card:hover .vehicle-specs,
.vehicle-card:focus-within .vehicle-specs {
    opacity: 1;
    transform: translateY(0);
}

.spec {
    text-align: center;
}

.spec-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.spec-label {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* === FACTORY SECTION === */
.factory-section {
    padding: 100px 0;
    background-color: var(--secondary);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.factory-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('images/dsm_factory.webp') center/cover no-repeat fixed;
    opacity: 0.15;
    z-index: 0;
}

:root[data-theme="dark"] .factory-bg,
:root:not([data-theme="light"]) .factory-bg {
    filter: brightness(0.35) contrast(1.1);
    opacity: 0.28;
}

.factory-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.factory-section .section-title h2 {
    color: var(--white);
}

.factory-section .section-title p {
    color: rgba(255, 255, 255, 0.7);
}

.factory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.factory-card {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition-medium);
    text-align: center;
}

.factory-card:hover,
.factory-card:focus-within {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
}

.factory-icon {
    font-size: 3rem;
    color: var(--accent-on-dark);
    margin-bottom: 1.5rem;
}

.factory-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-on-dark);
    font-family: var(--heading-font);
}

.factory-card p {
    line-height: 1.7;
}

/* === LEGACY SECTION - ENHANCED === */
.legacy-section {
    padding: 100px 5%;
    background-color: var(--surface-base);
    color: var(--text-color);
}

/* Legacy Tabs Navigation */
.legacy-tabs-container {
    max-width: 1400px;
    margin: 0 auto;
}

.legacy-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.legacy-tab {
    padding: 12px 20px;
    background: transparent;
    border: 2px solid var(--secondary);
    border-radius: 30px;
    color: var(--secondary);
    font-weight: 700;
    font-family: var(--heading-font);
    cursor: pointer;
    transition: var(--transition-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.legacy-tab:hover {
    background-color: var(--secondary-light);
    color: var(--white);
}

.legacy-tab.active {
    background-color: var(--secondary);
    color: var(--white);
}

/* Tab Content Container */
.legacy-content-container {
    position: relative;
}

.legacy-tab-content {
    display: none;
    animation: fadeIn 0.5s ease forwards;
}

.legacy-tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Technical Legacy Cards */
.legacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.legacy-card {
    background-color: var(--surface-base);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    padding: 2rem;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    color: var(--text-color);
}

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

.legacy-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient);
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.legacy-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--secondary);
    font-family: var(--heading-font);
}

.legacy-card p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Engine Heritage Timeline */
.engine-heritage {
    padding: 2rem;
    background-color: var(--surface-base);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    color: var(--text-color);
}

.engine-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.engine-intro h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-family: var(--heading-font);
}

.engine-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto 3rem;
    padding: 2rem 0;
}

.engine-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    margin-left: -2px;
    background-color: var(--primary);
}

.engine-timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.engine-timeline-item:last-child {
    margin-bottom: 0;
}

.engine-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    text-align: center;
    padding: 0.5rem 1rem;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 30px;
    font-weight: 700;
    font-family: var(--heading-font);
    z-index: 2;
}

.engine-detail {
    width: 42%;
    padding: 1.5rem;
    background-color: var(--surface-alt);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: var(--text-color);
}

.engine-timeline-item:nth-child(odd) .engine-detail {
    margin-left: auto;
    margin-right: 0%;
}

.engine-timeline-item:nth-child(even) .engine-detail {
    margin-right: auto;
    /* margin-left: 8%; */
}

.engine-timeline-item .engine-detail {
    margin-right: 28%;
}



.engine-detail h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
    font-family: var(--heading-font);
}

/* Engine Specs Grid */
.engine-specs {
    background-color: var(--secondary);
    color: var(--white);
    padding: 2rem;
    border-radius: 10px;
}

.engine-specs h3 {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: var(--white);
    font-family: var(--heading-font);
    text-align: center;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.spec-item {
    text-align: center;
}

.spec-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-on-dark);
}

.spec-value {
    font-size: 1.2rem;
}

/* Global Impact Section */
.global-impact {
    padding: 2rem;
}

.global-impact h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-family: var(--heading-font);
    text-align: center;
}

.impact-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.7;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.impact-card {
    background-color: var(--surface-base);
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    transition: var(--transition-medium);
    color: var(--text-color);
}

.impact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.impact-card h4 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary);
    font-family: var(--heading-font);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.quote-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.quote-container blockquote {
    font-size: 1.2rem;
    font-style: italic;
    line-height: 1.7;
    color: var(--text-color);
    position: relative;
    padding: 0 2rem;
}

.quote-container blockquote::before,
.quote-container blockquote::after {
    content: '"';
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.3;
    position: absolute;
}

.quote-container blockquote::before {
    top: -20px;
    left: -10px;
}

.quote-container blockquote::after {
    bottom: -40px;
    right: -10px;
}

/* Community Section Styles */
.community-section {
    padding: 100px 0;
    background-color: var(--secondary);
    color: var(--community-text);
    position: relative;
    overflow: hidden;
}

.community-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/s-l1600.webp') center/cover no-repeat fixed;
    opacity: 0.1;
    z-index: 0;
}

.community-content {
    position: relative;
    z-index: 1;
    padding: 0 5%;
}

.community-section .section-title h2,
.community-section .section-title p {
    color: var(--community-text);
}

.testimonials {
    display: flex;
    overflow-x: auto;
    gap: 2rem;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    max-width: 1400px;
    margin: 0 auto;
}

.testimonials::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.testimonial {
    flex: 0 0 350px;
    scroll-snap-align: start;
    background-color: var(--community-card-bg);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    color: var(--community-card-text);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    margin: 0 0 5px 0;
    font-size: 1.1rem;
    color: var(--accent);
}

.author-info p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .engine-timeline::before {
        left: 30px;
    }
    
    .engine-year {
        left: 30px;
        /* transform: translateX(-50%); //set above */
        /* transform: none; */
    }
    
    .engine-detail {
        width: 80%;
        margin-left: 80px !important;
        margin-right: 0 !important;
    }
    
    .legacy-tabs {
        gap: 0.5rem;
    }
    
    .legacy-tab {
        padding: 10px 15px;
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .impact-card,
    .legacy-card {
        padding: 1.5rem;
    }
    
    .engine-heritage {
        padding: 1.5rem;
    }
    
    .engine-timeline-item {
        margin-bottom: 2.5rem;
    }
    
    .engine-intro h3,
    .global-impact h3 {
        font-size: 1.6rem;
    }
    
    .impact-intro {
        font-size: 1rem;
    }
    
    .quote-container blockquote {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 576px) {
    .legacy-tab {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .legacy-tabs {
        flex-direction: column;
        width: 100%;
    }
    
    .engine-detail {
        width: calc(100% - 80px);
    }
    
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    /* Ensure proper touch targets for mobile */
    .nav-links a, 
    .btn, 
    .social-icon, 
    .gallery-item,
    .scroll-indicator {
        min-height: 44px; /* Minimum Apple recommended touch target size */
        min-width: 44px;
    }
    
    .scroll-indicator {
        bottom: 15px;
        font-size: 1.8rem;
    }
    
    .hero {
        height: 90vh; /* Slightly shorter on small devices */
    }
    
    .testimonial {
        flex: 0 0 90%; /* Almost full width on very small screens */
        padding: 15px;
    }
    
    /* Adjust spacing for better mobile reading */
    h3 {
        margin-bottom: 0.8rem;
    }
    
    p {
        margin-bottom: 1.2rem;
    }
    
    /* Override button styles for mobile */
    .btn {
        display: block;
        text-align: center;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .about-text .btn, .legacy-text .btn {
        margin: 0;
    }
}

@media (min-width: 769px) {
    /* Fix vehicle card height on desktop */
    .vehicle-card {
        height: 500px !important; /* Ensure consistent height on desktop */
    }
    
    /* Keep desktop flexbox layouts */
    .about-content, .legacy-content {
        display: flex;
        flex-wrap: wrap;
    }
    
    /* Restore button styles on desktop */
    .btn {
        display: inline-block;
        width: auto;
        max-width: none;
        margin: initial;
    }
    
    .about-text .btn, .legacy-text .btn {
        display: inline-block;
        width: auto;
    }
    
    /* Ensure vehicle cards are in a grid on desktop */
    .vehicle-cards {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)) !important;
    }
    
    /* Gallery grid should remain wide on desktop */
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
        grid-auto-rows: 300px !important;
    }
    
    /* Ensure proper gallery item spans on desktop */
    ::slotted(dsm-gallery-item:nth-child(3n+1)) {
        grid-row: span 2 !important;
    }
    
    /* Ensure factory grid remains wide */
    .factory-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)) !important;
    }
    
    /* Keep testimonials at proper width */
    .testimonial {
        flex: 0 0 350px !important;
    }
}

/* Handle notched phones and safe areas */
@supports (padding: max(0px)) {
    body, .navbar, .footer {
        padding-left: max(5%, env(safe-area-inset-left));
        padding-right: max(5%, env(safe-area-inset-right));
    }
    
    .back-to-top, dsm-back-to-top {
        bottom: max(30px, env(safe-area-inset-bottom, 30px));
        right: max(30px, env(safe-area-inset-right, 30px));
    }
    
    /* Remove safe area padding on desktop */
    @media (min-width: 992px) {
        body, .navbar, .footer {
            padding:0
        }
        
        .back-to-top, dsm-back-to-top {
            bottom: 30px;
            right: 30px;
        }
    }
}

/* === ACCESSIBILITY ENHANCEMENTS === */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Add high contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary: #b01010;
        --secondary: #1d1d40;
        --accent: #e29300;
    }
    
    .btn {
        border: 2px solid black;
    }
    
    .nav-links a {
        text-decoration: underline;
    }
}

/* Ensure reduced motion is respected */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Footer link styles - consistent colors */
.footer-links a, .footer-links a:visited {
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-social a, .footer-social a:visited {
    color: white;
}

.footer-spacer {
    height: 50px;
}
/* Sub-tabs styling for engine heritage section */
.legacy-subtab-content {
    display: none;
    margin-top: 2rem;
}

.legacy-subtab-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.platform-card {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.platform-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.platform-content {
    padding: 1.5rem;
}

.platform-content h4 {
    color: var(--secondary);
    margin-bottom: 0.75rem;
}

.platform-content p {
    font-size: 0.9rem;
    line-height: 1.6;
}

.info-box {
    background-color: var(--secondary);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    margin: 2rem 0;
}

.info-box h4 {
    color: var(--accent-on-dark);
    margin-bottom: 1rem;
}