/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* Colors - Professional Blue & Purple Theme */
    --primary-color: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #3B82F6;
    --secondary-color: #7C3AED;
    --secondary-dark: #6D28D9;

    /* Accent Colors */
    --accent-green: #059669;
    --accent-amber: #D97706;
    --accent-pink: #DB2777;

    /* Neutral Colors */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-gray-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border-color: #E5E7EB;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --section-padding: 6rem 0;
    --container-padding: 0 1.5rem;
    --container-max: 1200px;

    /* 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;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.header.scrolled {
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-content {
    padding: 1.25rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo svg {
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    padding: 10rem 0 8rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 50%, #FEF3C7 100%);
    opacity: 0.6;
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 4rem;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-display);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    margin-bottom: 1.5rem;
}

.service-title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

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

/* ========================================
   Process Section
   ======================================== */
.process {
    background: var(--bg-gray-light);
}

.process-timeline {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.process-step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.process-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    flex-shrink: 0;
    line-height: 1;
}

.process-content {
    flex: 1;
    padding-top: 0.5rem;
}

.process-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.process-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.features-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-check {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.25rem;
}

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

.feature-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.features-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1.5rem;
    padding: 3rem 2.5rem;
    text-align: center;
    color: white;
    box-shadow: var(--shadow-xl);
    max-width: 400px;
}

.visual-icon {
    margin-bottom: 1.5rem;
}

.visual-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.visual-text {
    font-size: 1rem;
    opacity: 0.9;
}

/* ========================================
   Trust Section
   ======================================== */
.trust {
    background: var(--bg-gray-light);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

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

.trust-icon {
    margin: 0 auto 1.5rem;
    width: 56px;
    height: 56px;
}

.trust-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.trust-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.testimonial-card {
    background: var(--bg-gray-light);
    border-radius: 1rem;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.testimonial-quote {
    opacity: 0.5;
}

.testimonial-text {
    color: var(--text-primary);
    font-size: 1.0625rem;
    line-height: 1.7;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
}

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

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

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo-text {
    font-size: 1.375rem;
    font-weight: 700;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

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

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

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 0;
    }

    .hero {
        padding: 8rem 0 6rem;
        min-height: auto;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

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

    .process-step {
        gap: 1.5rem;
    }

    .process-number {
        font-size: 2.5rem;
    }

    .features-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .trust-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
    }

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

/* Mobile */
@media (max-width: 480px) {
    :root {
        --section-padding: 3rem 0;
        --container-padding: 0 1rem;
    }

    .hero {
        padding: 7rem 0 5rem;
    }

    .hero-stats {
        gap: 1.5rem;
        flex-direction: column;
    }

    .stat-number {
        font-size: 2rem;
    }

    .section-header {
        margin-bottom: 3rem;
    }

    .services-grid {
        gap: 1.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .process-step {
        flex-direction: column;
        gap: 1rem;
    }

    .process-number {
        font-size: 2rem;
    }

    .features-title {
        font-size: 1.75rem;
        margin-bottom: 2rem;
    }

    .feature-list {
        gap: 1.5rem;
    }

    .visual-card {
        padding: 2rem 1.5rem;
    }

    .trust-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .testimonial-card {
        padding: 2rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header {
        position: static;
    }

    .hero-background {
        opacity: 0.3;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }
}