/* ===================================
   CSS Custom Properties / Design System
   =================================== */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-text: #ffffff;
    --color-text-muted: #8b8b9e;
    --color-text-subtle: #5a5a6e;
    --color-primary: #7c3aed;
    --color-primary-light: #a78bfa;
    --color-secondary: #06b6d4;
    --color-accent: #f472b6;
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
    --gradient-accent: linear-gradient(135deg, #f472b6 0%, #7c3aed 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 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: 3.5rem;
    --font-size-6xl: 4.5rem;
    
    /* 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 rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Layout */
    --container-max: 1200px;
    --navbar-height: 80px;
}

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

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

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

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

/* ===================================
   Utility Classes
   =================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-4xl) 0;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-3xl);
}

.highlight {
    color: var(--color-primary-light);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(124, 58, 237, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-full {
    width: 100%;
}

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

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

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

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

.nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--gradient-primary);
    color: white !important;
    border-radius: var(--radius-full);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-external {
    color: var(--color-primary-light) !important;
}

.nav-external::after {
    display: none;
}

.nav-external:hover {
    color: var(--color-text) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--navbar-height);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.hero-orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -50px) scale(1.05); }
    50% { transform: translate(-30px, 30px) scale(0.95); }
    75% { transform: translate(30px, 50px) scale(1.02); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--space-xl);
}

.hero-greeting {
    font-size: var(--font-size-lg);
    color: var(--color-primary-light);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 10vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.8;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-text-muted);
    border-bottom: 2px solid var(--color-text-muted);
    transform: rotate(45deg);
}

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

/* Animation Classes */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.animate-fade-up:nth-child(1) { animation-delay: 0.1s; }
.animate-fade-up:nth-child(2) { animation-delay: 0.2s; }
.animate-fade-up:nth-child(3) { animation-delay: 0.3s; }
.animate-fade-up:nth-child(4) { animation-delay: 0.4s; }
.animate-fade-up:nth-child(5) { animation-delay: 0.5s; }
.animate-fade-up:nth-child(6) { animation-delay: 0.6s; }
.animate-fade-up:nth-child(7) { animation-delay: 0.7s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--color-bg-elevated);
}

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

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 2fr 1fr;
    }
}

.about-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}

.about-intro {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.about-text p {
    margin-bottom: var(--space-lg);
}

.about-stats {
    display: grid;
    gap: var(--space-lg);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================
   Services Section
   =================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-subtle);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.featured {
    border-color: rgba(124, 58, 237, 0.3);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.service-badge {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: var(--gradient-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-icon {
    position: relative;
    z-index: 1;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-subtle);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-lg);
    color: var(--color-primary-light);
}

.service-title {
    position: relative;
    z-index: 1;
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.service-description {
    position: relative;
    z-index: 1;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.service-features {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.service-features li::before {
    content: '✓';
    color: var(--color-secondary);
    font-weight: 600;
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio {
    background: var(--color-bg-elevated);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.portfolio-card {
    background: var(--color-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    position: relative;
    height: 240px;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-placeholder {
    color: var(--color-primary-light);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.portfolio-card:hover .portfolio-placeholder {
    transform: scale(1.1);
    opacity: 0.3;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.portfolio-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 500;
    transform: translateY(20px);
    transition: all var(--transition-base);
}

.portfolio-card:hover .portfolio-link {
    transform: translateY(0);
}

.portfolio-link:hover {
    box-shadow: var(--shadow-glow);
}

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

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

.tag {
    font-size: var(--font-size-xs);
    color: var(--color-primary-light);
    background: rgba(124, 58, 237, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portfolio-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.portfolio-description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.portfolio-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-primary-light);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.portfolio-btn:hover {
    gap: var(--space-md);
}

.portfolio-btn .arrow {
    transition: transform var(--transition-fast);
}

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

/* ===================================
   Contact Section
   =================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1.5fr;
    }
}

.contact-info h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-md);
}

.contact-info > p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.contact-link:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: rgba(124, 58, 237, 0.3);
    color: var(--color-text);
}

.contact-form {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

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

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

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

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
        text-align: left;
    }
}

.footer-brand p {
    color: var(--color-text-muted);
    max-width: 300px;
}

.footer-logo {
    display: inline-block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

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

.footer-links a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

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

@media (min-width: 768px) {
    .footer-social {
        justify-content: flex-end;
    }
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: white;
}

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

/* ===================================
   Mobile Navigation
   =================================== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--space-2xl);
        gap: var(--space-lg);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        font-size: var(--font-size-xl);
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* ===================================
   Animations on Scroll
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}