:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

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

.btn-primary:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

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

.btn-secondary:hover {
    background-color: var(--bg-light);
    border-color: var(--text-muted);
}

.btn-secondary:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.btn-outline-white {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

.btn-block {
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
    background-color: rgba(99, 102, 241, 0.1);
    border-radius: 9999px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.25rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-icon {
    width: 1.5rem;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-normal);
}

.menu-toggle.active .menu-icon:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .menu-icon:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-icon:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
    padding: 12rem 0 8rem;
    background: linear-gradient(135deg, #f0fdf4 0%, #e0e7ff 50%, #fef3c7 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -25%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 3rem;
    padding: 2rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.stat-divider {
    width: 1px;
    height: 4rem;
    background-color: var(--border-color);
}

.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: float 6s ease-in-out infinite;
}

.floating-card i {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.card-1 {
    top: 10%;
    right: -2rem;
    animation-delay: 0s;
}

.card-1 i {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.card-2 {
    bottom: 20%;
    left: -2rem;
    animation-delay: -2s;
}

.card-2 i {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-color);
}

.card-3 {
    bottom: 10%;
    right: 10%;
    animation-delay: -4s;
}

.card-3 i {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--secondary-color);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-1rem);
    }
}

.features {
    padding: 8rem 0;
    background-color: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

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

.feature-card:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.feature-icon.bg-blue {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.feature-icon.bg-green {
    background: linear-gradient(135deg, var(--accent-color), #059669);
}

.feature-icon.bg-purple {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.feature-icon.bg-orange {
    background: linear-gradient(135deg, var(--secondary-color), #d97706);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.services {
    padding: 8rem 0;
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.service-image-wrapper {
    position: relative;
    overflow: hidden;
}

.service-image-wrapper img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.service-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 1.5rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.service-card:hover .service-overlay {
    opacity: 1;
}

.service-content {
    padding: 1.5rem;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

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

.testimonials {
    padding: 8rem 0;
    background-color: var(--bg-white);
}

.testimonials-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonials-track {
    display: flex;
    gap: 2rem;
    transition: transform var(--transition-normal);
}

.testimonial-card {
    flex: 0 0 calc(100% - 2rem);
    padding: 2.5rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.testimonial-card:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.testimonial-rating {
    margin-bottom: 1.5rem;
}

.testimonial-rating i {
    color: var(--secondary-color);
    font-size: 1.25rem;
}

.testimonial-text {
    font-size: 1.125rem;
    color: var(--text-primary);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 2rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.author-avatar {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.author-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.author-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.testimonial-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.testimonial-nav:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.testimonial-nav:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.testimonial-nav.prev {
    left: -1.5rem;
}

.testimonial-nav.next {
    right: -1.5rem;
}

.contact {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.contact .section-header {
    color: white;
}

.contact .section-title {
    color: white;
}

.contact .section-description {
    color: rgba(255, 255, 255, 0.8);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
}

.contact-icon {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.25rem;
}

.contact-detail h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.25rem;
}

.contact-detail p {
    color: rgba(255, 255, 255, 0.8);
}

.contact-form {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

.form-group.error input,
.form-group.error textarea {
    border-color: #ef4444;
}

.error-message {
    display: none;
    font-size: 0.875rem;
    color: #ef4444;
    margin-top: 0.5rem;
}

.form-group.error .error-message {
    display: block;
}

.footer {
    background-color: var(--text-primary);
    padding: 5rem 0 2rem;
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-text {
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 99;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.back-to-top:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
    }
    
    .stat-divider {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--bg-white);
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-link {
        padding: 0.75rem 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 10rem 0 6rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-card {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-container {
        padding: 0 1.5rem;
    }
    
    .testimonial-nav.prev {
        left: 0;
    }
    
    .testimonial-nav.next {
        right: 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .testimonial-text {
        font-size: 1rem;
    }
}