/* ========================================
   AIStarterLab - Premium Landing Page Styles
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: #161620;
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6b6b7b;
    
    --color-accent-primary: #6366f1;
    --color-accent-secondary: #8b5cf6;
    --color-accent-tertiary: #ec4899;
    --color-accent-success: #10b981;
    --color-accent-warning: #f59e0b;
    
    --color-gradient-start: #6366f1;
    --color-gradient-mid: #8b5cf6;
    --color-gradient-end: #ec4899;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========================================
   Typography
   ======================================== */

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

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-primary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-size: var(--font-size-base);
    font-weight: 600;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-xl);
}

.btn-nav {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
}

.btn-full {
    width: 100%;
}

/* ========================================
   Header
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 800;
    font-size: var(--font-size-xl);
}

.logo-icon {
    font-size: 1.5rem;
}

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

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

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

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

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-accent-primary);
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-accent-secondary);
    bottom: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--color-accent-tertiary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.2;
    animation: pulse 10s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(30px, -30px); }
    50% { transform: translate(-20px, 20px); }
    75% { transform: translate(20px, 10px); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.2; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.3; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent-success);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Services Section
   ======================================== */

.services {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

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

.service-card {
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    color: var(--color-accent-primary);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.service-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   Modules Section
   ======================================== */

.modules {
    padding: var(--space-3xl) 0;
}

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

.module-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.module-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
}

.module-card.featured {
    border-color: var(--color-accent-primary);
    background: linear-gradient(180deg, var(--color-bg-card), rgba(99, 102, 241, 0.05));
}

.module-badge {
    position: absolute;
    top: -1px;
    right: var(--space-lg);
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
}

.module-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.module-price {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-accent-primary);
}

.module-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.module-features {
    margin-bottom: var(--space-md);
}

.module-features li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.module-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent-success);
    border-radius: 50%;
    flex-shrink: 0;
}

.module-benefit {
    padding: var(--space-sm);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.module-benefit strong {
    color: var(--color-accent-success);
}

/* ========================================
   Portfolio Section
   ======================================== */

.portfolio {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-lg);
}

.portfolio-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    color: var(--color-accent-primary);
}

.portfolio-content {
    padding: var(--space-lg);
}

.portfolio-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.portfolio-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-accent-primary);
}

.portfolio-result {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent-success);
}

.portfolio-result svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   Why Choose Us Section
   ======================================== */

.why-us {
    padding: var(--space-3xl) 0;
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.why-us-content .section-title {
    text-align: left;
}

.why-us-content .section-subtitle {
    margin-bottom: var(--space-xl);
}

.value-points {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.value-point {
    display: flex;
    gap: var(--space-md);
}

.value-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border-radius: var(--radius-lg);
    color: var(--color-accent-primary);
}

.value-icon svg {
    width: 24px;
    height: 24px;
}

.value-text h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.value-text p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.why-us-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    width: 100%;
    max-width: 400px;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.visual-header {
    display: flex;
    gap: 6px;
    padding: var(--space-sm);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.visual-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.visual-dot:nth-child(1) { background: #ff5f57; }
.visual-dot:nth-child(2) { background: #febc2e; }
.visual-dot:nth-child(3) { background: #28c840; }

.visual-content {
    padding: var(--space-lg);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.metric-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.metric-bar {
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.metric-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.metric-fill.accent {
    background: linear-gradient(90deg, var(--color-accent-success), #34d399);
}

/* ========================================
   Reviews Section
   ======================================== */

.reviews {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.review-card {
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.review-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
}

.review-stars {
    display: flex;
    gap: 4px;
    margin-bottom: var(--space-md);
}

.review-stars svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent-warning);
}

.review-text {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.review-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.author-avatar {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    padding: var(--space-3xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.1));
    pointer-events: none;
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.cta-note {
    margin-top: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
}

.contact-info .section-subtitle {
    margin-bottom: var(--space-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: var(--color-accent-primary);
}

.method-icon svg {
    width: 22px;
    height: 22px;
}

.method-text {
    display: flex;
    flex-direction: column;
}

.method-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.method-value {
    font-weight: 600;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

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

.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.alert {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-sm);
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--color-accent-success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: all var(--transition-fast);
}

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

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

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

/* ========================================
   Footer
   ======================================== */

.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--color-bg-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: white;
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

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

@media (max-width: 1024px) {
    .why-us-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .why-us-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-bg-primary);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .btn-nav {
        display: none;
    }
    
    .hero-stats {
        gap: var(--space-lg);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .footer-desc {
        max-width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .services-grid,
    .modules-grid,
    .portfolio-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: var(--color-text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}