/* CSS Variables */
:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-lighter: #edf2f7;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

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

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav {
    display: flex;
    gap: 40px;
}

.nav-item {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.nav-item:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 120px;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    color: white;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    max-width: 800px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite ease-in-out;
}

.hero-shape.shape-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.hero-shape.shape-2 {
    width: 300px;
    height: 300px;
    bottom: -80px;
    right: 10%;
    animation-delay: 5s;
}

.hero-shape.shape-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: -50px;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

/* Section Styles */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Services Section */
.services {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background: var(--bg-white);
    padding: 40px 32px;
    border-radius: 16px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    margin-bottom: 24px;
}

.service-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    background-color: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    gap: 24px;
}

.feature-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    line-height: 1;
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Process Section */
.process {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.process .section-title,
.process .section-subtitle {
    color: white;
}

.process .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 24px;
}

.process-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.process-title {
    font-size: 22px;
    font-weight: 600;
    color: white;
    margin-bottom: 12px;
}

.process-description {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
}

/* Trust Section */
.trust {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

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

.trust-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.trust-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Testimonials Section */
.testimonials {
    background-color: var(--bg-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    flex-shrink: 0;
}

.author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.author-title {
    font-size: 14px;
    color: var(--text-light);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 60px 0;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
}

.footer-tagline {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

    .section-title {
        font-size: 36px;
    }

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

    .process-timeline {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .hero {
        padding: 120px 0 80px;
        min-height: 600px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .header-content {
        height: 64px;
    }

    .logo-text {
        font-size: 18px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
    }

    .stat-number {
        font-size: 36px;
    }

    .section-title {
        font-size: 28px;
    }

    .feature-item {
        flex-direction: column;
        gap: 16px;
    }

    .trust-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}