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

:root {
    /* Designer's Color Palette */
    --primary-color: #273287;        /* Azul púrpura principal */
    --primary-light: #88A2FF;        /* Azul claro vibrante */
    --primary-dark: #17184B;         /* Azul marino muy oscuro */
    --secondary-color: #AB9DFF;      /* Púrpura claro */
    --secondary-light: #C4CBFF;      /* Lavanda suave */
    --accent-color: #E3FC87;         /* Verde lima (acento) */
    --accent-light: #F0EEE9;         /* Beige muy claro */
    
    /* Neutral Colors */
    --text-primary: #17184B;         /* Texto principal en azul oscuro */
    --text-secondary: #273287;       /* Texto secundario */
    --text-light: #88A2FF;           /* Texto claro */
    --background-primary: #F0EEE9;   /* Fondo principal beige claro */
    --background-alt: #D3DDE7;       /* Fondo alternativo gris azulado */
    --background-dark: #17184B;      /* Fondo oscuro */
    --border-color: #C4CBFF;         /* Bordes en lavanda */
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #273287, #88A2FF);
    --gradient-secondary: linear-gradient(135deg, #AB9DFF, #C4CBFF);
    --gradient-accent: linear-gradient(135deg, #E3FC87, #D3DDE7);
    
    /* Shadows with new colors */
    --shadow-light: 0 2px 4px rgba(23, 24, 75, 0.1);
    --shadow-medium: 0 4px 8px rgba(23, 24, 75, 0.15);
    --shadow-large: 0 8px 16px rgba(23, 24, 75, 0.2);
    
    /* Typography - Buvera-VF alternatives */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Sora', 'Inter', Georgia, serif;
    --font-accent: 'Work Sans', 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 5rem 0;
    --container-padding: 0 1.5rem;
    --border-radius: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.nav-logo h2 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin: 0;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

/* Special styling for CTA link in navbar */
.nav-cta {
    background: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-dark);
    color: white !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(39, 50, 135, 0.8), rgba(136, 162, 255, 0.6)), 
                linear-gradient(45deg, var(--background-primary), var(--background-alt));
    position: relative;
    overflow: hidden;
    color: var(--text-primary);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(227, 252, 135, 0.1), rgba(196, 203, 255, 0.1));
    opacity: 0.3;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-shadow: none;
}

.highlight {
    background: linear-gradient(120deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
    text-shadow: none;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.hero-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.hero-card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-large);
    background: rgba(255, 255, 255, 1);
}

.card-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
}

.hero-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero-card p {
    color: var(--text-secondary);
    margin: 0;
}

/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background: var(--background-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    align-items: start;
}

.service-card {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-large);
}

.service-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.service-badge {
    position: absolute;
    top: -0.5rem;
    right: 2rem;
    background: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.service-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: white;
    font-size: 1.5rem;
}

.service-title {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-description {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.service-features i {
    color: var(--accent-color);
    font-size: 1rem;
}

.service-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.service-cta:hover {
    gap: 1rem;
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-large);
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--background-alt), var(--border-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--text-light);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(99, 102, 241, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

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

.portfolio-overlay h4 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.portfolio-overlay p {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.portfolio-link {
    width: 3rem;
    height: 3rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.portfolio-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* About Section */
.about {
    background: var(--background-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

.about-image-placeholder {
    height: 400px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.about-image-placeholder p {
    font-size: 1.125rem;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

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

.contact-details p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    margin-bottom: 1rem;
    color: white;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-social h4 {
    margin-bottom: 1rem;
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 3rem 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 4rem;
        left: -100%;
        width: 100%;
        height: calc(100vh - 4rem);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition);
        box-shadow: var(--shadow-large);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-visual {
        grid-template-columns: 1fr;
    }
    
    .hero-card:nth-child(2) {
        transform: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card.featured {
        transform: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-visual,
.service-card,
.portfolio-item,
.about-content {
    animation: fadeInUp 0.8s ease-out;
}

/* Smooth scrolling offset for fixed navbar */
section {
    scroll-margin-top: 4rem;
}

/* Loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Portfolio Section */
.portfolio {
    background: var(--background-alt);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: white;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-medium);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.portfolio-item {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    opacity: 1;
    transform: scale(1);
}

.portfolio-item:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-large);
}

.portfolio-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.portfolio-image {
    position: relative;
    min-height: 250px;
    max-height: 350px;
    overflow: hidden;
    background: var(--background-alt);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-image img {
    width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(138, 43, 226, 0.9),
        rgba(30, 144, 255, 0.9)
    );
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 2rem;
    text-align: center;
}

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

.portfolio-content {
    color: white;
    margin-bottom: 1rem;
}

.portfolio-content h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.portfolio-content p {
    font-size: 1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.portfolio-link {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.portfolio-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Video specific styles */
.portfolio-video-player {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    background: #000;
}

.portfolio-video-player:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* TikTok Embed Styles */
.portfolio-tiktok {
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tiktok-embed-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff0050, #00f2ea);
}

.tiktok-embed {
    margin: 0 !important;
    border-radius: var(--border-radius);
    overflow: hidden;
    max-width: 100% !important;
    min-width: 280px !important;
    height: 100%;
    display: flex;
    align-items: center;
}

.tiktok-embed section {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    text-align: center;
    width: 100%;
}

.tiktok-embed a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.tiktok-embed p {
    margin: 1rem 0;
    color: var(--text-primary);
    font-size: 1rem;
}

/* Fullscreen button styles */
.video-fullscreen {
    border: none;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
}

.video-fullscreen:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Video overlay adjustments */
.portfolio-video .portfolio-overlay {
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.7),
        rgba(138, 43, 226, 0.8)
    );
}

.portfolio-tiktok .portfolio-overlay {
    background: linear-gradient(
        135deg,
        rgba(255, 0, 80, 0.9),
        rgba(0, 242, 234, 0.9)
    );
}

/* Portfolio View More Button */
.portfolio-view-more {
    text-align: center;
    margin: 3rem 0;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Portfolio Page Styles */
.portfolio-header {
    background: var(--gradient-primary);
    padding: 8rem 0 4rem;
    text-align: center;
    color: var(--text-primary);
}

.portfolio-header-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.portfolio-header-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.portfolio-full {
    padding: 4rem 0;
    background: var(--background-primary);
}

.portfolio-grid-full {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-cta-section {
    background: var(--background-alt);
    padding: 4rem 0;
}

/* Portfolio CTA */
.portfolio-cta {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
}

.portfolio-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.portfolio-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-visual {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-card {
        padding: 1.5rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .portfolio-overlay {
        padding: 1.5rem;
    }
    
    .portfolio-content h4 {
        font-size: 1.3rem;
    }
    
    .portfolio-cta {
        padding: 2rem;
    }
    
    .portfolio-cta h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .portfolio-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.3);
        --shadow-large: 0 8px 16px rgba(0, 0, 0, 0.3);
    }
}