/* ============================================================================
   NoesisDat - Apple-Style Design System
   Modern, minimalist, and elegant
   ============================================================================ */

:root {
    /* Colors - Clean & Minimal */
    --white: #ffffff;
    --black: #1d1d1f;
    --gray-50: #fbfbfd;
    --gray-100: #f5f5f7;
    --gray-200: #e8e8ed;
    --gray-300: #d2d2d7;
    --gray-400: #86868b;
    --gray-500: #6e6e73;
    --gray-600: #424245;
    --gray-700: #333336;
    --gray-800: #1d1d1f;
    
    /* Accent Colors */
    --blue: #0071e3;
    --blue-hover: #0077ed;
    --blue-light: #147ce5;
    --purple: #bf4800;
    --green: #00a852;
    --cyan: #00b4d8;
    
    /* Gradients */
    --gradient-hero: linear-gradient(180deg, #fbfbfd 0%, #f5f5f7 100%);
    --gradient-dark: linear-gradient(180deg, #1d1d1f 0%, #2c2c2e 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Typography */
    --font-sans: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
    --font-text: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
    
    /* 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);
    --shadow-glass: 0 8px 32px rgba(0,0,0,0.08), inset 0 0 0 1px rgba(255,255,255,0.1);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-spring: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-text);
    color: var(--black);
    background: var(--white);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.display-large {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

.display-medium {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.display-small {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
}

.headline {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 500;
}

.body-large {
    font-size: 1.25rem;
    line-height: 1.6;
}

.body-regular {
    font-size: 1rem;
    line-height: 1.6;
}

.body-small {
    font-size: 0.875rem;
    line-height: 1.5;
}

.caption {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
}

/* Container */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================================================
   Navigation
   ============================================================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(251, 251, 253, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    transition: all var(--transition-normal);
}

.nav.scrolled {
    background: rgba(251, 251, 253, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 48px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--black);
}

.nav-logo img {
    height: 32px;
    width: auto;
}

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

.nav-link {
    text-decoration: none;
    color: var(--black);
    font-size: 0.875rem;
    font-weight: 400;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    padding: 0.5rem 0;
}

.nav-link:hover {
    opacity: 1;
}

.nav-link.active {
    opacity: 1;
    font-weight: 500;
}

.nav-cta {
    background: var(--blue);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--blue-hover);
    transform: scale(1.02);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--black);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 48px;
        left: 0;
        right: 0;
        background: rgba(251, 251, 253, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        border-bottom: 1px solid rgba(0,0,0,0.08);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1rem;
        padding: 0.75rem 0;
    }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: var(--blue-hover);
    transform: scale(1.02);
}

.btn-secondary {
    background: transparent;
    color: var(--blue);
    border: 1px solid var(--blue);
}

.btn-secondary:hover {
    background: rgba(0, 113, 227, 0.08);
}

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

.btn-dark:hover {
    background: var(--gray-700);
    transform: scale(1.02);
}

.btn-ghost {
    background: transparent;
    color: var(--blue);
    padding: 0.5rem 0;
}

.btn-ghost:hover {
    text-decoration: underline;
}

.btn-ghost::after {
    content: '→';
    margin-left: 0.25rem;
    transition: transform var(--transition-fast);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem var(--space-md) var(--space-4xl);
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 113, 227, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--blue);
    margin-bottom: var(--space-lg);
}

.hero-title {
    margin-bottom: var(--space-md);
    color: var(--black);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
}

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

.hero-visual {
    position: absolute;
    bottom: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    max-width: 1600px;
    opacity: 0.05;
    pointer-events: none;
}

/* Animated background elements */
.hero-bg-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.hero-bg-element.blue {
    width: 400px;
    height: 400px;
    background: var(--blue);
    top: 10%;
    right: 10%;
}

.hero-bg-element.purple {
    width: 300px;
    height: 300px;
    background: #a855f7;
    bottom: 20%;
    left: 10%;
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(0, 20px) scale(0.95); }
    75% { transform: translate(-30px, -10px) scale(1.02); }
}

/* ============================================================================
   Sections
   ============================================================================ */

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

.section-dark {
    background: var(--gradient-dark);
    color: white;
}

.section-light {
    background: var(--gray-100);
}

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

.section-header .caption {
    margin-bottom: var(--space-sm);
}

.section-header .display-medium {
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-dark .section-header p {
    color: rgba(255,255,255,0.7);
}

/* ============================================================================
   Cards
   ============================================================================ */

.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

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

.card-glass {
    background: var(--gradient-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
}

.card-dark {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
}

.card-dark:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    background: var(--gray-100);
}

.card-dark .card-icon {
    background: rgba(255,255,255,0.1);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.card p {
    color: var(--gray-500);
    line-height: 1.7;
}

.card-dark p {
    color: rgba(255,255,255,0.7);
}

/* Card Grid */
.card-grid {
    display: grid;
    gap: var(--space-lg);
}

.card-grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.card-grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* ============================================================================
   Product Cards (SaaS)
   ============================================================================ */

.product-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-spring);
    border: 1px solid var(--gray-200);
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.product-card-image {
    height: 240px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-card-image img {
    transform: scale(1.05);
}

.product-card-image .product-icon {
    font-size: 4rem;
}

.product-card-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: 0.375rem 0.75rem;
    background: var(--blue);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

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

.product-card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.product-card-subtitle {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-bottom: var(--space-sm);
}

.product-card-description {
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.product-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--blue);
    font-weight: 500;
    font-size: 0.9375rem;
}

.product-card-link::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.product-card:hover .product-card-link::after {
    transform: translateX(4px);
}

/* Product Colors */
.product-fallas .product-card-image {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
}

.product-subastas .product-card-image {
    background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
}

.product-financial .product-card-image {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

/* ============================================================================
   Features List
   ============================================================================ */

.features-list {
    list-style: none;
    display: grid;
    gap: var(--space-sm);
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: var(--space-xs) 0;
}

.features-list li::before {
    content: '';
    width: 20px;
    height: 20px;
    min-width: 20px;
    background: var(--green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
    background-size: 12px;
    background-repeat: no-repeat;
    background-position: center;
}

/* ============================================================================
   Stats
   ============================================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    text-align: center;
}

.stat-item {
    padding: var(--space-lg);
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--blue);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

/* ============================================================================
   Founder/Team
   ============================================================================ */

.founder-section {
    text-align: center;
}

.founder-card {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--space-2xl);
    background: var(--white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--gray-200);
}

.founder-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
    overflow: hidden;
    border: 4px solid var(--gray-200);
}

.founder-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
}

.founder-name {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.founder-title {
    font-size: 1rem;
    color: var(--blue);
    margin-bottom: var(--space-md);
}

.founder-bio {
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.founder-social {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--blue);
    color: white;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

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

.contact-info {
    display: grid;
    gap: var(--space-lg);
}

.contact-card {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--gray-100);
    border-radius: var(--radius-lg);
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.contact-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.contact-card a {
    color: var(--blue);
    text-decoration: none;
    font-weight: 500;
}

.contact-card a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--black);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

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

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

.footer {
    background: var(--gray-100);
    padding: var(--space-3xl) 0 var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--black);
}

.footer-brand img {
    height: 24px;
}

.footer-description {
    color: var(--gray-500);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-column h5 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    margin-bottom: var(--space-md);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--space-xs);
}

.footer-column a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--black);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
    font-size: 0.8125rem;
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }
}

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

.footer-links a {
    color: var(--gray-500);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ============================================================================
   Utilities
   ============================================================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-gradient {
    background: linear-gradient(90deg, var(--blue) 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Scroll animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================================================
   Loading & Page Transitions
   ============================================================================ */

.page-transition {
    opacity: 0;
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#page-content {
    min-height: 100vh;
}

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}