/**
 * Tesla Cards Theme - Main Stylesheet
 *
 * Tesla-inspired dark theme with card-based navigation
 */

/* ===================================
   CSS Variables - Tesla Color Palette
   =================================== */
:root {
    /* Tesla Brand Colors */
    --color-black: #000000;
    --color-dark-gray: #171717;
    --color-medium-gray: #393c41;
    --color-light-gray: #5c5e62;
    --color-white: #ffffff;
    --color-tesla-red: #E82127;
    --color-accent-blue: #3B7FE0;

    /* Dark Theme Colors */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #1a1a1a;
    --bg-hover: #222222;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;

    /* Border & Divider */
    --border-color: #2a2a2a;
    --divider-color: #1a1a1a;

    /* Spacing System (8px base) */
    --spacing-xs: 0.5rem;   /* 8px */
    --spacing-sm: 1rem;     /* 16px */
    --spacing-md: 1.5rem;   /* 24px */
    --spacing-lg: 2rem;     /* 32px */
    --spacing-xl: 3rem;     /* 48px */
    --spacing-2xl: 4rem;    /* 64px */

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;
    --line-height-heading: 1.2;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 600ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
}

/* ===================================
   CSS Reset & Base Styles
   =================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow: hidden;
}

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

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-tesla-red);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--line-height-heading);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

/* ===================================
   Canvas Layout - Non-Scrollable Viewport
   =================================== */
.site {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.site-main {
    flex: 1 1 auto;
    overflow: hidden;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.content-wrapper {
    padding: var(--spacing-2xl) 0;
}

/* ===================================
   Header - Canvas Layer
   =================================== */
.site-header {
    flex-shrink: 0;
    position: relative;
    z-index: 1000;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-branding {
    display: flex;
    align-items: center;
}

.site-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-title a {
    color: var(--text-primary);
}

.site-title a:hover {
    color: var(--color-tesla-red);
}

.site-description {
    display: none;
}

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-menu li a {
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-tesla-red);
    transition: width var(--transition-base);
}

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.menu-toggle-icon {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ===================================
   Card Stack System - Canvas Content
   =================================== */
.card-stack-wrapper {
    height: 100%;
    position: relative;
    overflow: hidden;
}

.card-stack-container {
    position: relative;
    height: 100%;
    padding: var(--spacing-lg) 0;
}

.page-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 1200px;
    height: calc(100% - 4rem);
    max-height: 90%;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
    cursor: pointer;
}

.page-card:not(.active) {
    pointer-events: auto;
}

.page-card.active {
    cursor: default;
    pointer-events: auto;
    z-index: 100 !important;
}

.page-card.peeking {
    transform: translate(-50%, -50%) translateY(-30px) scale(1.02) !important;
    box-shadow: var(--shadow-xl);
}

.card-header {
    position: absolute;
    top: 0;
    left: 0;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent);
    z-index: 10;
    width: 100%;
}

.card-icon {
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

.card-content {
    height: 100%;
    overflow-y: auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
    padding-top: 100px;
}

.card-content::-webkit-scrollbar {
    width: 8px;
}

.card-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.card-content::-webkit-scrollbar-thumb {
    background: var(--color-medium-gray);
    border-radius: 4px;
}

.card-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-light-gray);
}

.card-inner {
    max-width: 1000px;
    margin: 0 auto;
}

/* Card Navigation Indicators */
.card-navigation {
    position: fixed;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1001;
}

.nav-indicator {
    position: relative;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-medium-gray);
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.nav-indicator:hover {
    background-color: var(--color-light-gray);
    transform: scale(1.2);
}

.nav-indicator.active {
    background-color: var(--color-tesla-red);
    border-color: var(--color-tesla-red);
    width: 16px;
    height: 16px;
}

.nav-indicator .indicator-label {
    position: absolute;
    right: calc(100% + var(--spacing-sm));
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.nav-indicator:hover .indicator-label {
    opacity: 1;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-tesla-red);
    color: var(--text-primary);
}

.btn-primary:hover {
    background-color: #c71d22;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ===================================
   Page Headers
   =================================== */
.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Section Styles
   =================================== */
section {
    margin-bottom: var(--spacing-2xl);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===================================
   Hero Carousel
   =================================== */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 600px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-2xl);
}

/* Home Page Hero - Edge-to-Edge */
.home-page-content .home-hero-carousel {
    margin: calc(-1 * var(--spacing-2xl)) calc(-1 * var(--spacing-xl)) 0 calc(-1 * var(--spacing-xl));
    width: calc(100% + (2 * var(--spacing-xl)));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    margin-bottom: var(--spacing-2xl);
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: opacity var(--transition-slow);
}

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

.hero-slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-2xl);
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--text-primary);
}

.hero-slide-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.hero-slide-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

/* Carousel Controls */
.carousel-controls {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 10;
}

.carousel-prev,
.carousel-next {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1.5rem;
}

.carousel-prev:hover,
.carousel-next:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.carousel-indicators {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-xs);
    z-index: 10;
}

.carousel-indicator {
    width: 32px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.carousel-indicator.active {
    background-color: var(--color-tesla-red);
    width: 48px;
}

/* ===================================
   Blog Cards Grid
   =================================== */
.blog-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.blog-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-medium-gray);
}

.blog-card-image {
    width: 100%;
    height: 240px;
    overflow: hidden;
}

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

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

.blog-card-content {
    padding: var(--spacing-md);
}

.blog-card-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.blog-card-title a {
    color: var(--text-primary);
}

.blog-card-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.blog-card-link {
    color: var(--color-tesla-red);
    font-weight: 600;
    font-size: 0.9375rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===================================
   Features Grid
   =================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-medium-gray);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Projects Grid
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-medium-gray);
}

.project-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.project-title a {
    color: var(--text-primary);
}

.project-client {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.project-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.project-date {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.project-link {
    color: var(--color-tesla-red);
    font-weight: 600;
    font-size: 0.9375rem;
}

/* ===================================
   Products Grid (WooCommerce)
   =================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-medium-gray);
}

.product-image {
    position: relative;
    width: 100%;
    height: 320px;
    overflow: hidden;
}

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

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

.product-badge,
.sale-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.25rem 0.75rem;
    background-color: var(--color-accent-blue);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sale-badge {
    background-color: var(--color-tesla-red);
    left: var(--spacing-sm);
    right: auto;
}

.product-content {
    padding: var(--spacing-md);
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.product-title a {
    color: var(--text-primary);
}

.product-excerpt {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.product-filters {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.filter-group {
    text-align: center;
}

.filter-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    background-color: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background-color: var(--bg-hover);
    border-color: var(--color-medium-gray);
}

.filter-btn.active {
    background-color: var(--color-tesla-red);
    color: var(--text-primary);
    border-color: var(--color-tesla-red);
}

/* Product Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.category-item {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.category-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-medium-gray);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.category-item h3 {
    font-size: 1rem;
    margin: 0;
}

/* ===================================
   Profile/About Page
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.about-image {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background-color: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

/* Team Grid */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.team-member {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.team-member:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-medium-gray);
}

.member-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    background-color: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.member-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.member-role {
    color: var(--color-tesla-red);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.member-bio {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.value-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.value-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.value-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.value-item p {
    color: var(--text-secondary);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h4 {
    font-size: 1.125rem;
    margin: 0;
}

.contact-item a,
.contact-item p {
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form,
.tesla-contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

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

/* ===================================
   Media Gallery
   =================================== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.media-item {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.media-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-medium-gray);
}

.media-thumbnail {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.media-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.media-item:hover .media-thumbnail img {
    transform: scale(1.05);
}

.video-wrapper {
    width: 100%;
    height: 100%;
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
}

.media-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.25rem 0.75rem;
    background-color: var(--color-tesla-red);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.media-content {
    padding: var(--spacing-md);
}

.media-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.media-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.media-placeholder {
    width: 100%;
    height: 100%;
    background-color: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

/* Featured Video */
.featured-video {
    margin-top: var(--spacing-2xl);
}

.video-container {
    max-width: 900px;
    margin: var(--spacing-xl) auto 0;
}

.video-embed {
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    background-color: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    border: 2px dashed var(--border-color);
}

.play-icon {
    font-size: 3rem;
}

/* Media Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-tesla-red);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ===================================
   Thought Leadership
   =================================== */
.featured-article {
    margin-bottom: var(--spacing-2xl);
}

.featured-content {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 500px;
}

.featured-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.featured-text {
    position: relative;
    z-index: 1;
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 500px;
}

.featured-label {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-tesla-red);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    align-self: flex-start;
}

.featured-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.featured-title a {
    color: var(--text-primary);
}

.featured-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.featured-excerpt {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.article-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-medium-gray);
}

.article-image {
    width: 100%;
    height: 240px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.article-content {
    padding: var(--spacing-md);
}

.article-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-hover);
    color: var(--color-tesla-red);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.article-title a {
    color: var(--text-primary);
}

.article-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.article-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.article-link {
    color: var(--color-tesla-red);
    font-weight: 600;
    font-size: 0.9375rem;
}

/* Quotes Section */
.quotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0 var(--spacing-2xl);
}

.insight-quote {
    padding: var(--spacing-xl);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-tesla-red);
    font-style: italic;
}

.insight-quote p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.insight-quote cite {
    display: block;
    font-style: normal;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Topics Grid */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0 var(--spacing-2xl);
}

.topic-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    text-align: center;
}

.topic-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-medium-gray);
    box-shadow: var(--shadow-md);
}

.topic-item h3 {
    font-size: 1.125rem;
    margin: 0;
}

.topic-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Newsletter Section */
.newsletter-section {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
    border-radius: var(--radius-lg);
    text-align: center;
}

.newsletter-content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-tesla-red);
}

/* ===================================
   Call-to-Action Sections
   =================================== */
.cta-section {
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-2xl);
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

/* ===================================
   Empty States
   =================================== */
.no-posts,
.no-projects,
.no-products,
.no-media,
.no-articles {
    grid-column: 1 / -1;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ===================================
   Lightbox
   =================================== */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity var(--transition-base);
    padding: var(--spacing-md);
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-md);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 40px;
    height: 40px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background-color: var(--color-tesla-red);
    transform: rotate(90deg);
}

.lightbox-title {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--text-primary);
}

/* ===================================
   Footer - Canvas Layer (Minimal)
   =================================== */
.site-footer {
    flex-shrink: 0;
    position: relative;
    z-index: 1000;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.site-info {
    padding: var(--spacing-sm) 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.copyright {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-legal-links {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    font-size: 0.875rem;
}

.footer-legal-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
    color: var(--text-primary);
}

.footer-legal-links .separator {
    color: var(--text-muted);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .page-card {
        width: 95%;
        height: 85vh;
    }

    .card-navigation {
        right: var(--spacing-sm);
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }

    .page-title {
        font-size: 2.25rem;
    }

    /* Header */
    .menu-toggle {
        display: flex;
    }

    .main-navigation .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        padding: var(--spacing-md);
        border-top: 1px solid var(--border-color);
    }

    .main-navigation.toggled .nav-menu {
        display: flex;
    }

    /* Canvas Footer - Stack on Mobile */
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xs);
    }

    /* Card Stack */
    .card-content {
        padding: var(--spacing-md);
        padding-top: 80px;
    }

    /* Home Hero - Adjust for Mobile Padding */
    .home-page-content .home-hero-carousel {
        margin: calc(-1 * var(--spacing-md)) calc(-1 * var(--spacing-md)) 0 calc(-1 * var(--spacing-md));
        width: calc(100% + (2 * var(--spacing-md)));
    }

    /* Grids */
    .blog-cards-grid,
    .projects-grid,
    .products-grid,
    .articles-grid,
    .media-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .features-grid,
    .team-grid,
    .values-grid,
    .categories-grid,
    .stats-grid,
    .quotes-grid,
    .topics-grid {
        grid-template-columns: 1fr;
    }

    /* Hero Carousel */
    .hero-carousel {
        height: 400px;
    }

    .hero-slide-content {
        padding: var(--spacing-md);
    }

    .hero-slide-title {
        font-size: 1.75rem;
    }

    /* Newsletter Form */
    .newsletter-form {
        flex-direction: column;
    }

    /* Featured Article */
    .featured-text {
        padding: var(--spacing-md);
        min-height: 400px;
    }

    .featured-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .page-card {
        width: 100%;
        height: calc(100% - 2rem);
        border-radius: var(--radius-md);
    }

    .card-navigation {
        display: none;
    }

    h1 { font-size: 1.875rem; }
    .page-title {
        font-size: 1.875rem;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .site-header,
    .site-footer,
    .card-navigation,
    .btn,
    .menu-toggle {
        display: none;
    }

    .page-card {
        position: static;
        transform: none;
        box-shadow: none;
    }
}

/* ===================================
   Accessibility
   =================================== */
.screen-reader-text {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.skip-link:focus {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100000;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    text-decoration: none;
}

/* Focus styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-tesla-red);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}