/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a73e8;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --dark-color: #202124;
    --light-color: #f8f9fa;
    --gray-color: #5f6368;
    --border-color: #dadce0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Language Selector */
.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: white;
    padding: 8px 12px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.language-selector select {
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--gray-color);
    cursor: pointer;
    outline: none;
}

/* Header */
header {
    background: white;
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .tagline {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-top: 5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--gray-color);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: var(--transition);
}

nav a:hover {
    color: var(--primary-color);
    background-color: #f0f7ff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a73e8 0%, #34a853 100%);
    color: white;
    padding: 4rem 2rem;
    border-radius: 15px;
    margin: 2rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.search-box {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.search-box input {
    flex: 1;
    min-width: 300px;
    padding: 15px 20px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: var(--shadow);
}

.search-box button {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

#searchButton {
    background: var(--accent-color);
    color: white;
}

#searchButton:hover {
    background: #d32f2f;
    transform: translateY(-2px);
}

#advancedSearchToggle {
    background: white;
    color: var(--primary-color);
}

#advancedSearchToggle:hover {
    background: #f0f7ff;
    transform: translateY(-2px);
}

/* Advanced Search */
.advanced-search {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.filter-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-row select {
    padding: 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    min-width: 200px;
    background: white;
    cursor: pointer;
}

/* Brands Section */
.brands-section {
    margin: 3rem 0;
}

.brands-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark-color);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.brand-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.brand-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.brand-card img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 10px;
}

.brand-card h3 {
    font-size: 1rem;
    color: var(--dark-color);
}

/* EVs Section */
.evs-section {
    margin: 3rem 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.view-controls {
    display: flex;
    gap: 10px;
}

.view-btn {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.view-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Results Container */
.results-container {
    display: grid;
    gap: 25px;
}

.results-container.grid-view {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.results-container.list-view {
    grid-template-columns: 1fr;
}

.ev-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.ev-card .card-content {
    padding: 20px;
}

.ev-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.ev-card .specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin: 15px 0;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.spec-item i {
    color: var(--primary-color);
}

.card-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.btn-details, .btn-compare {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-details:hover {
    background: #0d62d9;
}

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

.btn-compare:hover {
    background: #2d8c47;
}

/* Loading Indicator */
.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.page-btn {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn:hover {
    background: #f0f7ff;
}

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

/* Demo Section */
.demo-section {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    margin: 3rem 0;
    box-shadow: var(--shadow);
}

.demo-search {
    display: flex;
    gap: 10px;
    margin-bottom: 2rem;
}

.demo-search input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 1rem;
}

.demo-search button {
    padding: 15px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.demo-search button:hover {
    background: #0d62d9;
    transform: translateY(-2px);
}

.demo-result {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    min-height: 200px;
}

/* Compare Section */
.compare-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 3rem;
    border-radius: 15px;
    margin: 3rem 0;
}

.compare-slots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 2rem;
}

.compare-slot {
    background: white;
    border: 3px dashed var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.compare-slot:hover {
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.compare-btn {
    display: block;
    margin: 0 auto;
    padding: 15px 40px;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.compare-btn:hover:not(:disabled) {
    background: #2d8c47;
    transform: translateY(-2px);
}

.compare-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #bdc1c6;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #3c4043;
    color: #bdc1c6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background: white;
    margin: 50px auto;
    padding: 30px;
    border-radius: 15px;
    max-width: 800px;
    width: 90%;
    position: relative;
}

.close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-color);
    transition: var(--transition);
}

.close:hover {
    color: var(--dark-color);
}

.compare-modal {
    max-width: 1200px;
}

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

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

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: #f8f9fa;
    font-weight: 600;
}

.comparison-table tr:hover {
    background: #f0f7ff;
}

/* Responsive Design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        min-width: 100%;
    }
    
    .brands-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .results-container.grid-view {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .demo-section,
    .compare-section {
        padding: 2rem 1rem;
    }
    
    .compare-slots {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
        margin: 20px auto;
    }
}