/* ========================================
   Rocketometry — Premium Stylesheet
   Apple/Tesla-Inspired Design System
   ======================================== */

/* ========================================
   CSS Variables & Root Styles
   ======================================== */
:root {
    /* Color Palette - Apple/Tesla Inspired */
    --color-white: #FFFFFF;
    --color-gray-light: #F5F5F7;
    --color-gray-medium: #E8E8ED;
    --color-black: #1D1D1F;
    --color-gray-text: #6E6E73;
    --color-gray-border: #D2D2D7;
    
    /* Accent Colors */
    --color-accent: #0071E3;
    --color-accent-hover: #0077ED;
    --color-accent-light: rgba(0, 113, 227, 0.1);
    --color-success: #34C759;
    --color-warning: #FF9500;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --spacing-xxl: 8rem;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 2rem;
    
    /* Transitions - Smooth & Fluid */
    --transition-smooth: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    font-size: 17px;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    font-weight: 600;
}

p {
    margin-bottom: 1.25rem;
    color: var(--color-black);
}

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

ul {
    list-style: none;
}

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

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* Alternating Background Pattern */
.section-white {
    background-color: var(--color-white);
}

.section-gray {
    background-color: var(--color-gray-light);
}

/* ========================================
   Floating Icons & Decorative Elements
   ======================================== */
.floating-icon {
    position: absolute;
    opacity: 0.15;
    pointer-events: none;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(5deg); }
    50% { transform: translate(-5px, -20px) rotate(-5deg); }
    75% { transform: translate(15px, -15px) rotate(3deg); }
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: -0.03em;
    transition: var(--transition-fast);
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-text);
    position: relative;
    transition: var(--transition-fast);
    white-space: nowrap;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

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

.nav-cta-item {
    margin-left: 0.5rem;
}

.nav-cta-item .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* ========================================
   Buttons - Premium Style
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 980px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 4px 14px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-black);
    border-color: var(--color-gray-border);
}

.btn-secondary:hover {
    background-color: var(--color-gray-light);
    border-color: var(--color-black);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(70px + 4rem) var(--container-padding) 4rem;
    background: linear-gradient(135deg, #FFFFFF 0%, #F5F5F7 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 113, 227, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 1000px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    padding: 0.5rem 1.25rem;
    background: var(--color-accent-light);
    border-radius: 100px;
}

.hero-headline {
    margin-bottom: 2rem;
    color: var(--color-black);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subheadline {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.6;
    color: var(--color-gray-text);
    margin-bottom: 3rem;
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

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

/* ========================================
   Section Headers
   ======================================== */
.section-eyebrow {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-headline {
    margin-bottom: 1.5rem;
    max-width: 900px;
    line-height: 1.2;
}

.section-headline br {
    display: block;
    content: "";
    margin-bottom: 1.5rem;
}

/* ========================================
   Truth Swap Widget - Text Replacement Animation
   ======================================== */
.truth-swap-widget {
    max-width: 850px;
    margin: 0 auto;
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.swap-text {
    position: absolute;
    width: 100%;
    text-align: center;
    margin: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.swap-text-1 {
    opacity: 1;
    transform: translateY(0);
}

.swap-text-2 {
    opacity: 0;
    transform: translateY(20px);
}

/* Swapped state - hide first, show second */
.truth-swap-widget.swapped .swap-text-1 {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}

.truth-swap-widget.swapped .swap-text-2 {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.desktop-only {
    display: none;
}

@media (min-width: 769px) {
    .desktop-only {
        display: inline;
    }
}

.section-subheadline {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-gray-text);
    max-width: 800px;
    margin-bottom: 3rem;
}

/* ========================================
   Content Blocks
   ======================================== */
.content-block {
    max-width: 800px;
}

.lead-text {
    font-size: 1.375rem;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    color: var(--color-black);
}

.body-text {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-black);
    margin-bottom: 1.25rem;
}

.body-text.secondary {
    color: var(--color-gray-text);
}

.emphasis {
    font-weight: 600;
    margin-top: 2rem;
}

/* ========================================
   Feature Lists
   ======================================== */
.feature-list {
    margin: 2rem 0;
    display: grid;
    gap: 1rem;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--color-black);
    transition: var(--transition-fast);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
}

.feature-list li:hover {
    transform: translateX(5px);
}

/* ========================================
   Cards with Shimmer Effect
   ======================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-border);
    border-radius: 24px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.pricing-plans .card {
    overflow: visible;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-plans .card .btn {
    margin-top: auto !important;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    transition: left 0.6s;
}

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

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

.pricing-plans .card:hover {
    transform: translateY(-4px);
}

.card-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-accent);
    background: var(--color-accent-light);
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: block;
    line-height: 1;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-black);
    font-weight: 700;
}

.card-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-text);
    margin-bottom: 1rem;
}

.card-list {
    margin: 1.5rem 0;
    display: grid;
    gap: 0.75rem;
}

.card-list li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9375rem;
    color: var(--color-gray-text);
}

.card-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 600;
}

/* ========================================
   Testimonials Carousel
   ======================================== */
.testimonials-section {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.testimonials-carousel {
    position: relative;
    margin-top: 4rem;
    overflow: hidden;
    padding: 2rem 0;
}

.testimonials-track {
    display: flex;
    gap: 2rem;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
    flex: 0 0 400px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-border);
    border-radius: 24px;
    padding: 2.5rem;
    text-align: left;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 6rem;
    font-family: Georgia, serif;
    color: var(--color-accent-light);
    line-height: 1;
    opacity: 0.3;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-black);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

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

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--color-accent);
    font-size: 1.25rem;
}

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

.testimonial-name {
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.25rem;
}

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

.testimonial-rating {
    margin-top: 1rem;
    color: var(--color-warning);
    font-size: 1.125rem;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-gray-border);
    background: var(--color-white);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-black);
}

.carousel-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    transform: scale(1.1);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ========================================
   Case Studies Section
   ======================================== */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.case-study-card {
    background: var(--color-white);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--color-gray-border);
    transition: var(--transition-smooth);
    position: relative;
}

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

.case-study-image {
    width: 100%;
    height: 240px;
    background: var(--color-gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.case-study-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-success));
}

.case-study-content {
    padding: 2rem;
}

.case-study-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.375rem 0.875rem;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.case-study-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.case-study-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-text);
    margin-bottom: 1.5rem;
}

.case-study-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-accent);
    display: block;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--color-gray-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.case-study-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-accent);
    transition: var(--transition-fast);
}

.case-study-link:hover {
    gap: 0.75rem;
}

/* ========================================
   Portfolio Showcase
   ======================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.portfolio-card {
    background: var(--color-white);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--color-gray-border);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.portfolio-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.portfolio-image {
    width: 100%;
    height: 220px;
    background: var(--color-gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.portfolio-content {
    padding: 2rem;
}

.portfolio-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.portfolio-url {
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    display: block;
}

.portfolio-description {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-gray-text);
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-text);
    background: var(--color-gray-light);
    padding: 0.375rem 0.75rem;
    border-radius: 100px;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, var(--color-black) 0%, #2D2D30 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(0, 113, 227, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-section .section-headline,
.cta-section .body-text {
    color: white;
}

.cta-section .body-text {
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-black);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
}

.footer-logo a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.75rem;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.footer-nav a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-nav a:hover {
    color: white;
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 968px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-lg: 2.5rem;
        --spacing-xl: 4rem;
        --spacing-xxl: 5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 2rem;
        gap: 2rem;
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .card-grid,
    .case-studies-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .testimonial-card {
        flex: 0 0 320px;
    }
}

@media (max-width: 640px) {
    :root {
        --container-padding: 1rem;
    }
    
    body {
        font-size: 16px;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .hero {
        padding-top: calc(70px + 2rem);
    }
    
    .card,
    .testimonial-card,
    .case-study-content,
    .portfolio-content {
        padding: 1.75rem;
    }
    
    .testimonials-carousel {
        margin-left: -1rem;
        margin-right: -1rem;
    }
}

/* ========================================
   Animations & Effects
   ======================================== */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

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

/* ========================================
   Platform Page Layouts
   ======================================== */
.platform-section-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.platform-section-layout.reverse {
    direction: rtl;
}

.platform-section-layout.reverse > * {
    direction: ltr;
}

.platform-content {
    max-width: 600px;
}

.platform-visual {
    position: relative;
}

.screenshot-frame {
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

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

.screenshot-mini {
    background: linear-gradient(135deg, #F5F5F7 0%, #E8E8EA 100%);
    border-radius: 16px;
    padding: 2rem 1rem;
    text-align: center;
    border: 1px solid var(--color-gray-border);
    transition: var(--transition-smooth);
}

.onboarding-card {
    text-align: center;
    transition: var(--transition-smooth);
}

.onboarding-card:hover .screenshot-mini {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-card {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--color-gray-border);
    text-align: center;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

/* Responsive Platform Layouts */
@media (max-width: 968px) {
    .platform-section-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .platform-section-layout.reverse {
        direction: ltr;
    }
    
    .platform-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .platform-section-layout {
        gap: 2rem;
    }
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Smooth reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

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

.text-accent {
    color: var(--color-accent);
}

.mt-4 {
    margin-top: 2rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

/* ========================================
   Pre-Launch Modal
   ======================================== */
.prelaunch-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.prelaunch-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.prelaunch-modal-content {
    background: var(--color-white);
    border-radius: 24px;
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.prelaunch-modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--color-gray-text);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-fast);
    line-height: 1;
    padding: 0;
}

.prelaunch-modal-close:hover {
    background: var(--color-gray-light);
    color: var(--color-black);
    transform: rotate(90deg);
}

.prelaunch-modal-body {
    padding: 4rem 3rem 3rem;
    text-align: center;
}

.prelaunch-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

.prelaunch-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    font-family: var(--font-display);
    letter-spacing: -1px;
}

.prelaunch-message {
    font-size: 1.25rem;
    color: var(--color-gray-text);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.prelaunch-submessage {
    font-size: 1.125rem;
    color: var(--color-gray-text);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.prelaunch-contact {
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray-border);
}

.prelaunch-email {
    display: inline-flex;
    align-items: center;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-fast);
}

.prelaunch-email:hover {
    color: var(--color-accent-hover);
    transform: translateY(-2px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

@media (max-width: 768px) {
    .prelaunch-modal-content {
        width: 95%;
    }
    
    .prelaunch-modal-body {
        padding: 3rem 2rem 2rem;
    }
    
    .prelaunch-title {
        font-size: 2rem;
    }
    
    .prelaunch-message {
        font-size: 1.125rem;
    }
    
    .prelaunch-submessage {
        font-size: 1rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header,
    .nav-toggle,
    .footer,
    .carousel-controls,
    .prelaunch-modal {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}