/* ========================================
   AWS AI Experts - Landing Page Styles
   Paleta de cores: AWS Orange (#FF9900), AWS Blue (#232F3E)
   ======================================== */

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

:root {
    /* AWS Color Palette */
    --aws-orange: #FF9900;
    --aws-orange-dark: #EC7211;
    --aws-orange-light: #FFB347;
    --aws-blue: #232F3E;
    --aws-blue-dark: #161E2D;
    --aws-blue-light: #37475A;
    --aws-gray-light: #F5F5F5;
    --aws-gray: #EAEDED;
    --aws-gray-dark: #AAAAAA;
    
    /* Semantic Colors */
    --primary: var(--aws-orange);
    --primary-dark: var(--aws-orange-dark);
    --primary-light: var(--aws-orange-light);
    --secondary: var(--aws-blue);
    --secondary-dark: var(--aws-blue-dark);
    --secondary-light: var(--aws-blue-light);
    --background: #FFFFFF;
    --background-alt: var(--aws-gray-light);
    --text-primary: var(--aws-blue);
    --text-secondary: #546E7A;
    --text-light: #FFFFFF;
    --border: #E0E0E0;
    --shadow: rgba(35, 47, 62, 0.1);
    --shadow-hover: rgba(35, 47, 62, 0.2);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--aws-orange) 0%, var(--aws-orange-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--aws-blue) 0%, var(--aws-blue-light) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

strong {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xxl) 0;
}

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

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--background);
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.logo i {
    color: var(--primary);
    font-size: 1.75rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary);
    background-color: rgba(255, 153, 0, 0.1);
}

.nav-link-cta {
    background: var(--gradient-primary);
    color: var(--text-light) !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
}

.nav-link-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.3);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    overflow: hidden;
}

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

.code-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--secondary);
    opacity: 0.95;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 153, 0, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 153, 0, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(35, 47, 62, 0.9) 0%, rgba(55, 71, 90, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-light);
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: clamp(2.5rem, 6vw, 4rem);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

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

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

.hero-wave svg {
    display: block;
    width: 100%;
    height: 80px;
    fill: var(--background);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn i {
    font-size: 1.125rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 153, 0, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

/* ========================================
   Social Proof
   ======================================== */
.social-proof {
    margin-top: var(--spacing-xl);
}

.proof-stats {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
}

.stat-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

.stat-item span {
    font-size: 0.9rem;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials-section {
    background: var(--background-alt);
    padding: var(--spacing-xl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 6px var(--shadow);
    transition: transform var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--shadow-hover);
}

.testimonial-icon {
    color: var(--primary);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    border-top: 2px solid var(--border);
    padding-top: var(--spacing-sm);
}

.testimonial-author strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Services Section
   ======================================== */
.service-category {
    margin-bottom: var(--spacing-xxl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary);
}

.category-header i {
    font-size: 2rem;
    color: var(--primary);
}

.category-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px var(--shadow);
    transition: all var(--transition-base);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
    border-color: var(--primary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon i {
    font-size: 1.75rem;
    color: var(--text-light);
}

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

.feature-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ========================================
   Differentials Section
   ======================================== */
.differentials-section {
    background: var(--background-alt);
}

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

.differential-card {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px var(--shadow);
    transition: all var(--transition-base);
}

.differential-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.differential-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.differential-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

.differential-title {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.differential-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ========================================
   Integrations Section
   ======================================== */
.integrations-section {
    background: var(--secondary);
    color: var(--text-light);
}

.integrations-section .section-title,
.integrations-section .section-description {
    color: var(--text-light);
}

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

.integration-category {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    font-size: 1.25rem;
}

.category-title i {
    color: var(--primary);
    font-size: 1.5rem;
}

.integration-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: rgba(255, 153, 0, 0.2);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    border: 1px solid rgba(255, 153, 0, 0.3);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: rgba(255, 153, 0, 0.3);
    border-color: var(--primary);
}

.integration-example {
    margin-top: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary);
}

.example-title {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.example-content p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

/* ========================================
   Methodology Section
   ======================================== */
.methodology-section {
    background: var(--background-alt);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 20px;
    bottom: 20px;
    width: 3px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-xl);
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-light);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.3);
}

.timeline-content {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px var(--shadow);
}

.timeline-title {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-duration {
    color: var(--primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.timeline-list {
    list-style: none;
    padding: 0;
}

.timeline-list li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--text-secondary);
}

.timeline-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: var(--font-weight-bold);
}

/* ========================================
   Cases Section
   ======================================== */
.cases-section {
    background: var(--background);
}

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

.case-card {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
    border-color: var(--primary);
}

.case-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.case-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

.case-title {
    font-size: 1.375rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.case-industry {
    color: var(--primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.case-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.case-results {
    border-top: 2px solid var(--border);
    padding-top: var(--spacing-md);
}

.result-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: 0.5rem;
}

.result-item i {
    color: var(--primary);
    margin-top: 0.25rem;
}

.result-item span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   Plans Section
   ======================================== */
.plans-section {
    background: var(--background-alt);
}

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

.plan-card {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px var(--shadow);
    border: 2px solid var(--border);
    position: relative;
    transition: all var(--transition-base);
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-hover);
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(255, 153, 0, 0.2);
}

.plan-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
}

.plan-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.plan-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

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

.plan-duration {
    color: var(--primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.plan-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.plan-features li {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.plan-features i {
    color: var(--primary);
    margin-top: 0.25rem;
}

.plans-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background: rgba(255, 153, 0, 0.1);
    border-radius: var(--radius-lg);
}

.plans-cta p {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.125rem;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-section {
    background: var(--background);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--background);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--background);
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--background-alt);
}

.faq-question i {
    color: var(--primary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-section {
    background: var(--background-alt);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

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

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px var(--shadow);
}

.info-item i {
    font-size: 2rem;
    color: var(--primary);
    flex-shrink: 0;
}

.info-item h4 {
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.info-item p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-form-container {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px var(--shadow);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--secondary);
    color: var(--text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-section {
    color: var(--text-light);
}

.footer-title {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

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

.footer-links i {
    margin-right: 0.5rem;
    color: var(--primary);
}

.footer-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.9);
}

.badge-item i {
    color: var(--primary);
    font-size: 1.25rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    color: rgba(255, 255, 255, 0.7);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
}

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

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(255, 153, 0, 0.3);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(255, 153, 0, 0.4);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
    text-align: center;
}

.mb-5 {
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    /* Navigation */
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--background);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 12px var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    /* Hero */
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .proof-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    /* Grids */
    .features-grid,
    .differentials-grid,
    .cases-grid,
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .integrations-categories {
        grid-template-columns: 1fr;
    }
    
    /* Timeline */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: 1.125rem;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xxl: 3rem;
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-xxl) 0;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .navbar,
    .hero-cta,
    .back-to-top,
    .contact-section {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    section {
        page-break-inside: avoid;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline-offset: 4px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: var(--text-light);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}