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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: #0f0f0f;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 15, 15, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.nav-logo h2 {
    color: #00ff88;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
}

.nav-logo span {
    color: #888;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: #ffffff;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 10px 0;
}

.nav-link:hover,
.nav-link.active {
    color: #00ff88;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00ff88, #00cc6a);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #ffffff;
    margin: 3px 0;
    transition: 0.3s;
}

/* Breadcrumb */
.breadcrumb {
    background: rgba(15, 15, 15, 0.9);
    padding: 20px 0;
    margin-top: 80px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.breadcrumb-content {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-link {
    color: #00ff88;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.breadcrumb-link:hover {
    color: #00cc6a;
}

.breadcrumb-current {
    color: #888;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 50%, #0f0f0f 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(0, 255, 136, 0.1), rgba(0, 204, 106, 0.05));
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, #ffffff 0%, #00ff88 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #cccccc;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #00ff88;
    display: block;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #888;
    font-weight: 500;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #00ff88 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #cccccc;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tire Series Section */
.tire-series-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
}

.tire-series-content {
    margin-top: 60px;
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.series-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.series-card:hover {
    transform: translateY(-10px);
    border-color: #00ff88;
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.1);
}

.series-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.series-icon i {
    font-size: 1.5rem;
    color: #0f0f0f;
}

.series-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 12px;
}

.series-info p {
    color: #cccccc;
    margin-bottom: 20px;
    line-height: 1.6;
}

.series-specs {
    margin-bottom: 20px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.spec-label {
    color: #888;
    font-weight: 500;
}

.spec-value {
    color: #00ff88;
    font-weight: 600;
}

.series-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    background: rgba(0, 255, 136, 0.1);
    color: #00ff88;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

/* Load Performance Section */
.load-performance-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #0f0f0f 100%);
}

.performance-content {
    margin-top: 60px;
}

.performance-table-wrapper {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 40px;
}

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

.performance-table th,
.performance-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.performance-table th {
    background: rgba(0, 255, 136, 0.1);
    color: #00ff88;
    font-weight: 600;
    font-size: 14px;
}

.performance-table tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

.performance-table td {
    color: #cccccc;
}

.performance-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: #00ff88;
}

.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.info-icon i {
    font-size: 1.5rem;
    color: #0f0f0f;
}

.info-card h3 {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.info-card p {
    color: #cccccc;
    line-height: 1.6;
}

/* Durability Section */
.durability-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
}

.durability-content {
    margin-top: 60px;
}

.test-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.test-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
}

.test-card:hover {
    transform: translateY(-5px);
    border-color: #00ff88;
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.1);
}

.test-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.test-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.test-icon i {
    font-size: 1.3rem;
    color: #0f0f0f;
}

.test-header h3 {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
}

.test-data {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.data-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-item:last-child {
    border-bottom: none;
}

.data-label {
    color: #cccccc;
    font-weight: 500;
}

.data-value {
    color: #00ff88;
    font-weight: 600;
}

.result-excellent {
    color: #00ff88 !important;
    font-weight: 700;
}

.durability-summary {
    margin-top: 40px;
}

.summary-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
}

.summary-card h3 {
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 30px;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #00ff88;
    display: block;
    margin-bottom: 8px;
}

.stat-label {
    color: #888;
    font-size: 14px;
}

.summary-card p {
    color: #cccccc;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* Cost-Benefit Section */
.cost-benefit-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #0f0f0f 100%);
}

.analysis-content {
    margin-top: 60px;
}

.comparison-table-wrapper {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 40px;
}

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

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table th {
    background: rgba(0, 255, 136, 0.1);
    color: #00ff88;
    font-weight: 600;
    font-size: 14px;
}

.comparison-table tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

.comparison-table td {
    color: #cccccc;
}

.difference {
    color: #ff6b6b;
    font-weight: 600;
}

.difference.positive {
    color: #00ff88;
}

.savings-calculator {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
}

.savings-calculator h3 {
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.calculator-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

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

.form-group label {
    color: #cccccc;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input {
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.2);
}

.calculate-btn {
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    color: #0f0f0f;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 20px;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 255, 136, 0.3);
}

.savings-result {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: 10px;
    padding: 20px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    color: #cccccc;
    font-weight: 500;
}

.result-value {
    color: #00ff88;
    font-weight: 700;
    font-size: 1.1rem;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
    text-align: center;
}

.cta-content h2 {
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-content p {
    color: #cccccc;
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    color: #0f0f0f;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 255, 136, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #00ff88;
    border: 2px solid #00ff88;
}

.btn-secondary:hover {
    background: #00ff88;
    color: #0f0f0f;
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background: #0a0a0a;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: #00ff88;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-section h4 {
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.footer-section p {
    color: #cccccc;
    line-height: 1.6;
    margin-bottom: 15px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f0f0f;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 255, 136, 0.3);
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #00ff88;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.contact-info i {
    color: #00ff88;
    width: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #888;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-container {
        padding: 0 20px;
    }
    
    .nav-logo {
        gap: 8px;
    }
    
    .logo-image {
        width: 32px;
        height: 32px;
    }
    
    .nav-logo h2 {
        font-size: 20px;
    }
    
    .nav-logo span {
        font-size: 10px;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .test-results-grid {
        grid-template-columns: 1fr;
    }

    .performance-info {
        grid-template-columns: 1fr;
    }

    .calculator-form {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .series-card,
    .test-card,
    .info-card {
        padding: 20px;
    }

    .performance-table th,
    .performance-table td,
    .comparison-table th,
    .comparison-table td {
        padding: 10px;
        font-size: 12px;
    }

    .summary-stats {
        grid-template-columns: 1fr;
    }
}