/* ===================================
   Professional Website Template - Styles
   Premium Professional Design
   =================================== */

/* CSS Variables - Design System */
:root {
    /* Colors */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #14b8a6;
    --color-secondary-dark: #0d9488;
    --color-accent: #f43f5e;
    --color-bg-dark: #0f172a;
    --color-bg-medium: #1e293b;
    --color-bg-light: #334155;
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Spacing */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
    --space-3xl: 96px;
    --space-4xl: 128px;
    
    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Layout */
    --max-width: 1200px;
    --max-width-text: 720px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    z-index: 1001;
    transition: width 0.1s ease;
}

/* Splash Screen */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background: var(--color-bg-dark);
    transition: opacity 0.6s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

#splash-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.splash-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.splash-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.8) 0%, 
        rgba(20, 184, 166, 0.6) 50%, 
        rgba(244, 63, 94, 0.4) 100%);
    animation: gradientShift 8s ease-in-out infinite;
}

.splash-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: 2s;
    animation-duration: 6s;
}

.particle:nth-child(3) {
    top: 80%;
    left: 40%;
    animation-delay: 4s;
    animation-duration: 10s;
}

.particle:nth-child(4) {
    top: 40%;
    left: 60%;
    animation-delay: 1s;
    animation-duration: 7s;
}

.particle:nth-child(5) {
    top: 10%;
    left: 90%;
    animation-delay: 3s;
    animation-duration: 9s;
}

@keyframes gradientShift {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) translateX(0px) scale(1);
        opacity: 0.6;
    }
    25% { 
        transform: translateY(-20px) translateX(10px) scale(1.1);
        opacity: 0.8;
    }
    50% { 
        transform: translateY(10px) translateX(-15px) scale(0.9);
        opacity: 1;
    }
    75% { 
        transform: translateY(-5px) translateX(5px) scale(1.05);
        opacity: 0.7;
    }
}

.splash-content {
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.splash-logo {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 700;
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.5s forwards;
}

.enter-prompt {
    padding: 18px 48px;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-base);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 2s forwards;
    backdrop-filter: blur(10px);
}

.enter-prompt:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

/* Main Content */
#main-content {
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}

#main-content.show {
    opacity: 1;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

nav.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-primary-light);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background: url('https://images.unsplash.com/photo-1516589178581-6cd7833ae3b2?w=1920&q=80') center/cover no-repeat;
    transform: translateZ(0);
    will-change: transform;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.88) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    padding: var(--space-3xl) var(--space-md);
    text-align: center;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, #6366f1 0%, #14b8a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 22px);
    color: var(--color-text-secondary);
    max-width: var(--max-width-text);
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

/* Buttons */
.btn {
    padding: 16px 32px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    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:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-bg-light);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Section Styles */
section {
    padding: var(--space-4xl) var(--space-md);
    position: relative;
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: clamp(18px, 3vw, 20px);
    color: var(--color-text-secondary);
    max-width: var(--max-width-text);
    margin: 0 auto;
}

/* Why Section */
.why-section {
    background: var(--color-bg-medium);
    position: relative;
}

.why-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.02)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)" /></svg>');
    opacity: 0.5;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
    position: relative;
    z-index: 1;
}

.why-card {
    padding: var(--space-xl);
    background: var(--color-bg-dark);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background-size: cover;
    background-position: center;
    opacity: 0.08;
    transition: opacity var(--transition-base);
}

.why-card:nth-child(1)::before {
    background-image: url('https://images.unsplash.com/photo-1559827260-dc66d52bef19?w=600&q=80');
}

.why-card:nth-child(2)::before {
    background-image: url('https://images.unsplash.com/photo-1501594907352-04cda38ebc29?w=600&q=80');
}

.why-card:nth-child(3)::before {
    background-image: url('https://images.unsplash.com/photo-1507413245164-6160d8298b31?w=600&q=80');
}

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

.why-card:hover::before {
    opacity: 0.15;
}

.why-card h3 {
    font-family: var(--font-display);
    font-size: 28px;
    margin-bottom: var(--space-sm);
    color: var(--color-primary);
    position: relative;
    z-index: 1;
}

.why-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.stat {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
    position: relative;
    z-index: 1;
}

/* How It Works Section */
.how-it-works-section {
    background: var(--color-bg-dark);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
}

.step {
    position: relative;
    padding: var(--space-xl);
    background: var(--color-bg-medium);
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all var(--transition-base);
    overflow: hidden;
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 180px;
    background-size: cover;
    background-position: center;
    opacity: 0.12;
    transition: all var(--transition-base);
}

.step:nth-child(1)::before {
    background-image: url('https://images.unsplash.com/photo-1512941937669-90a1b58e7e9c?w=800&q=80');
}

.step:nth-child(2)::before {
    background-image: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?w=800&q=80');
}

.step:nth-child(3)::before {
    background-image: url('https://images.unsplash.com/photo-1529156069898-49953e39b3ac?w=800&q=80');
}

.step:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step:hover::before {
    opacity: 0.2;
    transform: scale(1.05);
}

.step-number {
    display: inline-flex;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.step h3 {
    font-family: var(--font-display);
    font-size: 24px;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.step p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* Features Section */
.features-section {
    background: var(--color-bg-medium);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.feature-card {
    padding: var(--space-xl);
    background: var(--color-bg-dark);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.06;
    transition: all var(--transition-base);
}

.feature-card:nth-child(1)::before {
    background-image: url('https://images.unsplash.com/photo-1484480974693-6ca0a78fb36b?w=600&q=80');
}

.feature-card:nth-child(2)::before {
    background-image: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?w=600&q=80');
}

.feature-card:nth-child(3)::before {
    background-image: url('https://images.unsplash.com/photo-1677442136019-21780ecad995?w=600&q=80');
}

.feature-card:nth-child(4)::before {
    background-image: url('https://images.unsplash.com/photo-1529156069898-49953e39b3ac?w=600&q=80');
}

.feature-card:nth-child(5)::before {
    background-image: url('https://images.unsplash.com/photo-1434494878577-86c23bcb06b9?w=600&q=80');
}

.feature-card:nth-child(6)::before {
    background-image: url('https://images.unsplash.com/photo-1569025743873-ea3a9ade89f9?w=600&q=80');
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.feature-card:hover::before {
    opacity: 0.12;
    transform: scale(1.05);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon i {
    color: white;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* Social Proof Section */
.social-proof-section {
    background: var(--color-bg-dark);
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.testimonial {
    padding: var(--space-xl);
    background: var(--color-bg-medium);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

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

.testimonial-quote {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    font-style: italic;
    position: relative;
}

.testimonial-quote::before {
    content: '"';
    font-size: 48px;
    color: var(--color-primary);
    opacity: 0.3;
    position: absolute;
    top: -10px;
    left: -10px;
    font-family: Georgia, serif;
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-text-primary);
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.stat-card {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(99, 102, 241, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    background: rgba(99, 102, 241, 0.08);
    border-color: rgba(99, 102, 241, 0.3);
}

.stat-card .stat {
    color: var(--color-secondary);
}

.stat-card .stat-label {
    color: var(--color-text-secondary);
    font-size: 16px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1573497620053-ea5300f94f21?w=1920&q=80') center/cover no-repeat;
    opacity: 0.15;
    mix-blend-mode: overlay;
}

.cta-section .section-header {
    position: relative;
    z-index: 1;
}

.cta-section .section-title {
    color: white;
}

.cta-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-primary {
    background: white;
    color: var(--color-primary);
    position: relative;
    z-index: 1;
}

.cta-section .btn-primary:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background: var(--color-bg-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-2xl) var(--space-md);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h4 {
    font-family: var(--font-display);
    font-size: 16px;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

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

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 14px;
    line-height: 2;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 14px;
}

/* 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);
    }
}

/* Scroll Reveal Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-slow);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all var(--transition-slow);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* Staggered animations */
.reveal:nth-child(1) { transition-delay: 0.1s; }
.reveal:nth-child(2) { transition-delay: 0.2s; }
.reveal:nth-child(3) { transition-delay: 0.3s; }
.reveal:nth-child(4) { transition-delay: 0.4s; }
.reveal:nth-child(5) { transition-delay: 0.5s; }
.reveal:nth-child(6) { transition-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --space-3xl: 80px;
        --space-4xl: 96px;
    }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 64px;
        --space-4xl: 80px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        min-height: 80vh;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .features-grid,
    .steps,
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .splash-logo {
        font-size: 36px;
    }
    
    .enter-prompt {
        padding: 14px 32px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
}