/* ===========================
   CarPilot Landing Page Styles
   =========================== */

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

:root {
    /* Color Palette */
    --primary-color: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #3B82F6;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;

    /* Grayscale */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Semantic Colors */
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    box-sizing: border-box;
    vertical-align: middle;
    min-height: 44px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    /* keep button visually interactive but do not shift layout */
    transform: none;
    box-shadow: 0 6px 18px rgba(30, 64, 175, 0.12);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--primary-color);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
    min-height: 56px;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:not(.btn-primary):hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
	padding-left: 10px;
	padding-right: 10px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.05;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    margin: 0 auto;
    background: var(--gray-900);
    border-radius: 2.5rem;
    padding: 1rem;
    box-shadow: var(--shadow-xl);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 2rem;
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-preview {
    text-align: center;
    width: 100%;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.status-good {
    background: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

.preview-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.preview-issues {
    font-size: 1rem;
    color: var(--gray-600);
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .phone-mockup {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

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

/* Trust Section */
.trust-section {
    padding: var(--spacing-xl) 0;
    background: white;
    border-bottom: 1px solid var(--gray-200);
}

.trust-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
}

.trust-icon {
    width: 24px;
    height: 24px;
    color: var(--success-color);
    stroke-width: 2;
}

/* Features Section */
.features-section {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: white;
}

.feature-icon {
    width: 48px;
    height: 48px;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    stroke-width: 2;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works-section {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

.steps-container {
    max-width: 800px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 30px;
    top: 70px;
    width: 2px;
    height: calc(100% + var(--spacing-xl));
    background: var(--gray-300);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

.step-content {
    flex: 1;
    padding-top: var(--spacing-xs);
}

.step-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Benefits Section */
.benefits-section {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.benefit-large {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
}

.benefit-number {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.benefit-label {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.benefit-description {
    opacity: 0.9;
    line-height: 1.6;
}

.benefit-item {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: white;
}

.benefit-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    stroke-width: 2;
}

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

.benefit-text {
    color: var(--gray-600);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* Testimonials Section */
.testimonials-section {
    padding: var(--spacing-2xl) 0;
    background: var(--gray-50);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    color: var(--accent-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.author-name {
    font-weight: 600;
    color: var(--gray-900);
}

.author-location {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Pricing Section */
.pricing-section {
    padding: var(--spacing-2xl) 0;
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.pricing-card {
    position: relative;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: var(--spacing-lg);
}

.pricing-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    margin: var(--spacing-md) 0;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price-period {
    font-size: 1rem;
    color: var(--gray-600);
}

.pricing-description {
    color: var(--gray-600);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--gray-700);
}

.pricing-features .feature-disabled {
    color: var(--gray-400);
}

.pricing-total {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    color: var(--gray-700);
}

.pricing-guarantee {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-xl);
}

.guarantee-icon {
    width: 48px;
    height: 48px;
    color: var(--success-color);
    flex-shrink: 0;
    stroke-width: 2;
}

.guarantee-text strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-900);
}

.guarantee-text p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

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

.cta-title {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-offer {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
}

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

.offer-text {
    font-size: 1.125rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

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

.cta-buttons .btn-primary:hover {
    background: var(--gray-100);
}

.cta-buttons .btn-secondary {
    background: transparent;
    border-color: white;
    color: white;
}

.cta-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.cta-feature svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

@media (max-width: 768px) {
    .cta-title {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.footer-logo .brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-description {
    line-height: 1.6;
    max-width: 300px;
}

.footer-links h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-links a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .testimonial-card,
    .pricing-card {
        opacity: 0;
        animation: fadeInUp 0.6s ease-out forwards;
    }

    .feature-card:nth-child(1) { animation-delay: 0.1s; }
    .feature-card:nth-child(2) { animation-delay: 0.2s; }
    .feature-card:nth-child(3) { animation-delay: 0.3s; }
    .feature-card:nth-child(4) { animation-delay: 0.4s; }
    .feature-card:nth-child(5) { animation-delay: 0.5s; }
    .feature-card:nth-child(6) { animation-delay: 0.6s; }
}