/* Root Variables */
:root {
    /* Colors */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    
    --accent-primary: #3b82f6;
    --accent-secondary: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --accent-success: #22c55e;
    
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--accent-primary) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--accent-secondary) 0%, var(--primary-500) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-700) 50%, var(--accent-primary) 100%);
    --gradient-subtle: linear-gradient(135deg, var(--primary-50) 0%, var(--neutral-50) 100%);
    
    /* 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), 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--neutral-700);
    background-color: white;
    overflow-x: hidden;
}

/* Header and Navigation */
.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 var(--neutral-200);
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav {
    padding: 1rem 0;
}

.nav__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__brand h2 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__link {
    text-decoration: none;
    color: var(--neutral-700);
    font-weight: var(--font-weight-medium);
    position: relative;
    transition: var(--transition-fast);
}

.nav__link:hover {
    color: var(--accent-primary);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav__toggle span {
    width: 24px;
    height: 2px;
    background: var(--neutral-700);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Breadcrumb */
.breadcrumb {
    padding: 6rem 0 2rem;
    background: var(--gradient-subtle);
    margin-top: 60px;
}

.breadcrumb__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.breadcrumb__nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb__link {
    color: var(--neutral-600);
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb__link:hover {
    color: var(--accent-primary);
}

.breadcrumb__separator {
    color: var(--neutral-400);
    font-weight: var(--font-weight-medium);
}

.breadcrumb__current {
    color: var(--accent-primary);
    font-weight: var(--font-weight-semibold);
}

/* Hero Section */
.hero-development {
    padding: 4rem 0 8rem;
    background: var(--gradient-hero);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-development::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-development__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-development__content {
    max-width: 600px;
}

.hero-development__title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-development__subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
}

.hero-development__stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: white;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

/* Development Showcase */
.hero-development__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.development-showcase {
    position: relative;
    max-width: 500px;
    width: 100%;
}

.browser-mockup {
    background: white;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-15deg) rotateX(10deg);
    transition: var(--transition-slow);
}

.browser-mockup:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
}

.browser-header {
    background: var(--neutral-100);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--neutral-200);
}

.browser-controls {
    display: flex;
    gap: 0.5rem;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neutral-300);
}

.control:nth-child(1) {
    background: #ff5f57;
}

.control:nth-child(2) {
    background: #ffbd2e;
}

.control:nth-child(3) {
    background: #28ca42;
}

.browser-url {
    flex: 1;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--neutral-200);
    font-size: 0.875rem;
    color: var(--neutral-600);
}

.browser-content {
    background: white;
    min-height: 300px;
    padding: 1rem;
}

.store-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--neutral-200);
}

.store-logo {
    width: 80px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
}

.store-nav {
    flex: 1;
    height: 16px;
    background: var(--neutral-200);
    border-radius: var(--border-radius-sm);
    margin: 0 2rem;
}

.store-cart {
    width: 32px;
    height: 32px;
    background: var(--primary-100);
    border-radius: var(--border-radius-md);
}

.store-banner {
    width: 100%;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius-lg);
    margin-bottom: 1rem;
}

.store-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.product-card {
    aspect-ratio: 1;
    background: var(--neutral-100);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--neutral-200);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--neutral-600);
    line-height: 1.7;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

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

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

.btn--outline:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.btn:hover::before {
    left: 100%;
}

/* Development Process */
.development-process {
    padding: 8rem 0;
    background: white;
}

.development-process__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.process-timeline {
    position: relative;
    margin-top: 4rem;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.process-step {
    display: flex;
    align-items: center;
    margin-bottom: 6rem;
    position: relative;
}

.process-step:nth-child(even) {
    flex-direction: row-reverse;
}

.process-step:nth-child(even) .step-content {
    text-align: right;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: var(--shadow-lg);
}

.step-content {
    flex: 1;
    max-width: 500px;
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--primary-200);
    position: relative;
    margin: 0 3rem;
}

.process-step:nth-child(odd) .step-content {
    margin-right: auto;
    margin-left: calc(50% + 3rem);
}

.process-step:nth-child(even) .step-content {
    margin-left: auto;
    margin-right: calc(50% + 3rem);
}

.step-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.process-step:nth-child(odd) .step-content::before {
    left: -30px;
    border-right-color: white;
    transform: translateY(-50%);
}

.process-step:nth-child(even) .step-content::before {
    right: -30px;
    border-left-color: white;
    transform: translateY(-50%);
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-900);
    margin-bottom: 1rem;
}

.step-content p {
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.step-features {
    list-style: none;
}

.step-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--neutral-700);
    font-size: 0.9rem;
}

.step-features li::before {
    content: '✓';
    color: var(--accent-success);
    font-weight: var(--font-weight-bold);
    font-size: 1rem;
}

/* Technical Architecture */
.technical-architecture {
    padding: 8rem 0;
    background: var(--gradient-subtle);
}

.technical-architecture__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.architecture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.architecture-text {
    max-width: 500px;
}

.tech-benefits {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-200);
    transition: var(--transition-normal);
}

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

.benefit-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.benefit-content h4 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-900);
    margin-bottom: 0.5rem;
}

.benefit-content p {
    color: var(--neutral-600);
    line-height: 1.6;
}

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

.tech-stack {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--primary-200);
    min-width: 350px;
}

.stack-layer {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--primary-50);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--accent-primary);
}

.stack-layer:last-child {
    margin-bottom: 0;
}

.stack-layer h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-900);
    margin-bottom: 1rem;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-item {
    padding: 0.5rem 1rem;
    background: white;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--primary-200);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--primary-700);
    transition: var(--transition-fast);
}

.tech-item:hover {
    background: var(--primary-100);
    transform: translateY(-2px);
}

/* Feature Modules */
.feature-modules {
    padding: 8rem 0;
    background: white;
}

.feature-modules__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.module-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--primary-200);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.module-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.module-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.module-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-900);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.module-card p {
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.module-features {
    list-style: none;
}

.module-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    color: var(--neutral-700);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
}

.module-features li::before {
    content: '→';
    color: var(--accent-primary);
    font-weight: var(--font-weight-bold);
}

/* Success Cases */
.success-cases {
    padding: 8rem 0;
    background: var(--primary-50);
}

.success-cases__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.case-card {
    background: white;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--primary-200);
    transition: var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.case-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.case-stats {
    display: flex;
    gap: 3rem;
    color: white;
    text-align: center;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.case-content {
    padding: 2rem;
}

.case-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-900);
    margin-bottom: 1rem;
}

.case-content p {
    color: var(--neutral-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.case-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-tag {
    padding: 0.25rem 0.75rem;
    background: var(--primary-100);
    color: var(--primary-700);
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.case-results {
    padding: 1rem;
    background: var(--primary-50);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--accent-success);
}

.result-item {
    color: var(--neutral-700);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Support Services */
.support-services {
    padding: 8rem 0;
    background: white;
}

.support-services__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.support-text {
    margin-bottom: 4rem;
}

.support-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.plan-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary-200);
    transition: var(--transition-normal);
    position: relative;
    text-align: left;
}

.plan-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.plan-featured {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

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

.plan-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-900);
    margin-bottom: 1rem;
}

.plan-price {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-primary);
    margin-bottom: 2rem;
}

.plan-price span {
    font-size: 1rem;
    color: var(--neutral-600);
    font-weight: var(--font-weight-normal);
}

.plan-features {
    list-style: none;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--neutral-700);
}

.plan-features li::before {
    content: '✓';
    color: var(--accent-success);
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
}

/* CTA Section */
.cta-development {
    padding: 8rem 0;
    background: var(--gradient-hero);
    color: white;
    text-align: center;
}

.cta-development__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.cta-development__content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-development__title {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.cta-development__subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.cta-development__actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--primary-900);
    color: white;
    padding: 4rem 0 2rem;
}

.footer__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__column h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 1.5rem;
    color: white;
}

.footer__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer__list li {
    margin-bottom: 0.75rem;
}

.footer__list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer__list a:hover {
    color: var(--accent-primary);
}

.footer__contact {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer__contact strong {
    color: white;
    display: block;
    margin-bottom: 0.5rem;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-development__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .architecture-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .tech-stack {
        min-width: 300px;
    }
}

@media (max-width: 992px) {
    .section__title {
        font-size: 2.5rem;
    }

    .hero-development__title {
        font-size: 2.5rem;
    }

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

    .process-step:nth-child(odd) .step-content,
    .process-step:nth-child(even) .step-content {
        margin-left: 3rem;
        margin-right: 3rem;
    }

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

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

    .support-plans {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

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

@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: var(--transition-normal);
        z-index: 1000;
    }

    .nav__menu.active {
        left: 0;
    }

    .nav__toggle {
        display: flex;
        flex-direction: column;
        gap: 4px;
        cursor: pointer;
        z-index: 1001;
    }

    .nav__toggle span {
        width: 25px;
        height: 3px;
        background: var(--primary-700);
        border-radius: 2px;
        transition: var(--transition-fast);
    }

    .nav__toggle.active span:first-child {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:last-child {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .breadcrumb {
        padding: 1rem 0;
    }

    .breadcrumb__container {
        padding: 0 1rem;
    }

    .hero-development {
        padding: 4rem 0;
    }

    .hero-development__title {
        font-size: 2rem;
    }

    .hero-development__subtitle {
        font-size: 1rem;
    }

    .hero-development__stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .development-process,
    .technical-architecture,
    .feature-modules,
    .success-cases,
    .support-services,
    .cta-development {
        padding: 4rem 0;
    }

    .section__title {
        font-size: 2rem;
    }

    .section__subtitle {
        font-size: 1rem;
    }

    .process-timeline::before {
        left: 2rem;
    }

    .process-step {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 4rem;
    }

    .process-step:nth-child(even) {
        flex-direction: column;
    }

    .step-number {
        position: relative;
        left: 2rem;
        transform: none;
        margin-bottom: 1.5rem;
        width: 60px;
        height: 60px;
        font-size: 1.25rem;
    }

    .step-content {
        margin-left: 0;
        margin-right: 0;
        max-width: 100%;
    }

    .step-content::before {
        display: none;
    }

    .process-step:nth-child(even) .step-content {
        text-align: left;
        margin-left: 0;
        margin-right: 0;
    }

    .tech-benefits {
        gap: 1.5rem;
    }

    .benefit-item {
        padding: 1rem;
    }

    .tech-stack {
        min-width: auto;
        width: 100%;
    }

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

    .module-card {
        padding: 1.5rem;
    }

    .case-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .cta-development__title {
        font-size: 2rem;
    }

    .cta-development__actions {
        flex-direction: column;
        align-items: center;
    }

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

@media (max-width: 480px) {
    .container,
    .development-process__container,
    .technical-architecture__container,
    .feature-modules__container,
    .success-cases__container,
    .support-services__container,
    .cta-development__container,
    .footer__container {
        padding: 0 1rem;
    }

    .hero-development__title {
        font-size: 1.75rem;
    }

    .section__title {
        font-size: 1.75rem;
    }

    .hero-development__stats {
        gap: 1rem;
    }

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

    .stat-label {
        font-size: 0.875rem;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1rem;
        left: 1.5rem;
    }

    .process-timeline::before {
        left: 1.75rem;
    }

    .step-content {
        padding: 1.5rem;
    }

    .benefit-item {
        flex-direction: column;
        text-align: center;
    }

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

    .module-card {
        padding: 1rem;
    }

    .module-icon {
        width: 50px;
        height: 50px;
    }

    .case-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .plan-card {
        padding: 1.5rem;
    }

    .plan-price {
        font-size: 2.5rem;
    }

    .cta-development__title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Animation Classes */
.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Print Styles */
@media print {
    .header,
    .breadcrumb,
    .cta-development,
    .footer {
        display: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
        color: black;
        background: white;
    }

    .section__title {
        font-size: 18pt;
        color: black;
    }

    .module-card,
    .case-card,
    .plan-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}