/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
}

.logo i {
    color: var(--color-secondary);
    font-size: 28px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #fff;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.15);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.hero-title {
    font-size: var(--font-4xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.hero-description {
    font-size: var(--font-lg);
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.hero-description strong {
    color: var(--text-primary);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-base);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-base);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 40px;
    font-size: var(--font-lg);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.car-animation {
    font-size: 120px;
    color: var(--color-secondary);
    animation: float 3s ease-in-out infinite;
    position: relative;
}

.car-animation i {
    filter: drop-shadow(0 20px 60px rgba(99, 102, 241, 0.3));
}

.road {
    width: 300px;
    height: 4px;
    background: var(--gradient-primary);
    margin-top: 30px;
    border-radius: 2px;
    animation: roadPulse 2s ease-in-out infinite;
}

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

@keyframes roadPulse {
    0%, 100% { opacity: 0.3; transform: scaleX(1); }
    50% { opacity: 1; transform: scaleX(1.1); }
}

/* Problem Section */
.problem {
    padding: 100px 0;
    background: var(--bg-darker);
}

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

.section-header h2 {
    font-size: var(--font-3xl);
    font-weight: 800;
    margin-bottom: var(--space-xs);
}

.section-header p {
    color: var(--text-muted);
    font-size: var(--font-lg);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.problem-card {
    background: var(--bg-card);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-lg);
    background: var(--bg-card-hover);
}

.problem-icon {
    font-size: 40px;
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
}

.problem-card h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.problem-card p {
    color: var(--text-muted);
    font-size: var(--font-sm);
    line-height: 1.7;
}

/* Study Section */
.study {
    padding: 100px 0;
    background: var(--bg-dark);
}

.study-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.study-text .section-header {
    text-align: left;
    margin-bottom: var(--space-md);
}

.study-description {
    margin-top: var(--space-md);
}

.study-intro {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.study-intro i {
    color: var(--color-secondary);
    font-size: 24px;
    margin-top: 3px;
}

.highlight {
    color: var(--color-primary-light);
    font-weight: 600;
}

.study-points {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: var(--space-lg);
}

.study-point {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: var(--font-base);
}

.study-point i {
    color: var(--color-success);
}

.study-cta {
    margin-top: var(--space-md);
}

.form-note {
    margin-top: var(--space-sm);
    font-size: var(--font-sm);
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.study-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.study-card {
    background: var(--gradient-primary);
    padding: 50px 40px;
    border-radius: var(--radius-xl);
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-md);
}

.study-card-inner {
    text-align: center;
    color: #fff;
}

.study-card-inner i {
    font-size: 60px;
    margin-bottom: var(--space-md);
}

.study-card-inner h4 {
    font-size: var(--font-2xl);
    margin-bottom: var(--space-md);
}

.study-card-inner ul {
    list-style: none;
    text-align: left;
    padding: 0;
}

.study-card-inner ul li {
    padding: 8px 0;
    font-size: var(--font-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.study-card-inner ul li:last-child {
    border-bottom: none;
}

/* Comparison Section */
.comparison {
    padding: 100px 0;
    background: var(--bg-darker);
}

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

.comparison-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.comparison-item:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.2);
}

.company-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: var(--space-md);
}

.company-logo i {
    font-size: 32px;
    color: var(--color-secondary);
}

.company-logo h3 {
    font-size: var(--font-xl);
}

.issue-list {
    list-style: none;
    padding: 0;
}

.issue-list li {
    padding: 10px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: var(--font-sm);
}

.issue-list li:last-child {
    border-bottom: none;
}

.issue-list i {
    color: var(--color-danger);
    font-size: 16px;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: var(--bg-dark);
}

.cta-box {
    background: var(--gradient-primary);
    padding: 60px 50px;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.cta-box h2 {
    font-size: var(--font-3xl);
    font-weight: 800;
    margin-bottom: var(--space-sm);
    color: #fff;
}

.cta-box h2 .gradient-text {
    -webkit-text-fill-color: #fff;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-lg);
    margin-bottom: var(--space-md);
}

.cta-box .btn-primary {
    background: #fff;
    color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-box .btn-primary:hover {
    background: #f0f0f5;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: var(--space-xs);
}

.footer-brand p {
    color: var(--text-dark);
    font-size: 15px;
    max-width: 300px;
}

.footer-links h4,
.footer-social h4 {
    font-size: var(--font-base);
    margin-bottom: var(--space-sm);
    color: #fff;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: var(--font-sm);
}

.footer-links a:hover {
    color: #fff;
}

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    color: var(--text-dark);
    font-size: 22px;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    color: var(--color-secondary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    color: var(--text-dark);
    font-size: var(--font-sm);
}

/* Counter Container */
.counter-container {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-light);
}

.counter-box {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    max-width: 340px;
    position: relative;
    overflow: hidden;
}

.counter-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05), transparent 70%);
    animation: glowPulse 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}

.counter-box:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.counter-box i {
    font-size: 32px;
    color: var(--color-secondary);
    animation: pulseIcon 2s ease-in-out infinite;
}

@keyframes pulseIcon {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.counter-box div {
    display: flex;
    flex-direction: column;
}

.counter-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    transition: all 0.3s ease;
}

.counter-number.animate {
    animation: countUp 0.4s ease forwards;
}

@keyframes countUp {
    0% {
        opacity: 0.5;
        transform: scale(0.8);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.counter-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--gradient-primary);
    color: #fff;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.5s ease;
    z-index: 9999;
    font-family: 'Inter', sans-serif;
    max-width: 400px;
}

.toast-notification.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-notification i {
    margin-right: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: var(--font-3xl);
    }
    .hero-container,
    .study-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .study-text .section-header {
        text-align: center;
    }
    .study-intro {
        justify-content: center;
    }
    .study-point {
        justify-content: center;
    }
    .hero-buttons {
        justify-content: center;
    }
    .car-animation {
        font-size: 80px;
    }
    .road {
        width: 200px;
    }
    .counter-container {
        display: flex;
        justify-content: center;
    }
    .counter-box {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 15, 0.98);
        padding: 30px 20px;
        gap: 20px;
        border-bottom: 1px solid var(--border-light);
    }
    .nav-links.active {
        display: flex;
    }
    .hamburger {
        display: flex;
    }
    .hero-title {
        font-size: var(--font-2xl);
    }
    .hero {
        padding: 120px 0 60px;
    }
    .section-header h2 {
        font-size: var(--font-2xl);
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-brand p {
        margin: 0 auto;
    }
    .social-icons {
        justify-content: center;
    }
    .cta-box {
        padding: 40px 20px;
    }
    .cta-box h2 {
        font-size: var(--font-2xl);
    }
    .study-card {
        padding: 30px 20px;
    }
    .problem-grid,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    .counter-box {
        max-width: 100%;
        justify-content: center;
        padding: 14px 20px;
    }
    .counter-number {
        font-size: 26px;
    }
    .counter-box i {
        font-size: 28px;
    }
}