/* ============================================
   Marcelo Ponce Ortiz - Professional Landing Page
   Responsive CSS Stylesheet
   Mobile-first approach
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1e3a5f;
    --color-primary-dark: #152a45;
    --color-primary-light: #2c5282;
    --color-secondary: #d4af37;
    --color-secondary-dark: #c9a227;
    --color-accent: #4a6fa5;
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-background: #ffffff;
    --color-background-alt: #f7fafc;
    --color-border: #e2e8f0;
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Layout */
    --container-max: 1200px;
    --border-radius: 8px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.main-nav {
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.logo-text {
    font-family: var(--font-heading);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    position: relative;
    transition: background 0.3s;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    transition: transform 0.3s;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Navigation Menu */
.nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-md);
    list-style: none;
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
}

.nav-menu.active {
    display: flex;
}

.nav-menu a {
    display: block;
    padding: var(--spacing-xs) 0;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a:focus {
    color: var(--color-primary);
    border-bottom-color: var(--color-secondary);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: flex;
        position: static;
        flex-direction: row;
        box-shadow: none;
        padding: 0;
        background: transparent;
    }
    
    .nav-menu a {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    padding-top: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-photo {
    text-align: center;
}

.hero-photo img {
    width: 280px;
    height: 350px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.hero-text {
    text-align: center;
}

.hero-text h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.hero-location {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.hero-specialty {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.btn-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.btn-primary {
    background: var(--color-secondary);
    color: var(--color-primary-dark);
    border-color: var(--color-secondary);
}

.btn-primary:hover {
    background: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1rem;
}

/* Social Links */
.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: white;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.social-icon {
    width: 24px;
    height: 24px;
}

.cv-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.cv-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.cv-link {
    font-weight: 600;
}

/* Tablet Hero */
@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xxl);
    }
    
    .hero-text {
        text-align: left;
    }
    
    .hero-photo img {
        width: 350px;
        height: 440px;
    }
    
    .hero-text h1 {
        font-size: 3rem;
    }
    
    .hero-cta {
        flex-direction: row;
    }
    
    .hero-social {
        justify-content: flex-start;
    }
}

/* Desktop Hero */
@media (min-width: 1024px) {
    .hero-text h1 {
        font-size: 3.5rem;
    }
    
    .hero-photo img {
        width: 400px;
        height: 500px;
    }
}

/* ============================================
   PROFILE SECTION
   ============================================ */

.profile-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background);
}

.profile-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.profile-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.profile-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.profile-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.profile-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-secondary);
}

.profile-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    color: var(--color-primary);
}

.profile-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.profile-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.profile-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Tablet Profile */
@media (min-width: 768px) {
    .profile-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop Profile */
@media (min-width: 1024px) {
    .profile-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */

.experience-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background-alt);
}

.experience-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.experience-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.experience-category {
    margin-bottom: var(--spacing-xxl);
}

.experience-category h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.experience-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-secondary);
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: var(--spacing-sm);
    width: 14px;
    height: 14px;
    background: var(--color-secondary);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--color-secondary-dark);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-content {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-primary);
}

.timeline-content h4 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.timeline-company {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.timeline-content p:last-child {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Desktop Timeline */
@media (min-width: 768px) {
    .timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .timeline-item {
        padding-left: 0;
        width: 50%;
    }
    
    .timeline-item:nth-child(odd) {
        margin-left: 0;
        padding-right: var(--spacing-xl);
        text-align: right;
    }
    
    .timeline-item:nth-child(even) {
        margin-left: 50%;
        padding-left: var(--spacing-xl);
    }
    
    .timeline-item::before {
        left: auto;
    }
    
    .timeline-item:nth-child(odd)::before {
        right: -6px;
    }
    
    .timeline-item:nth-child(even)::before {
        left: -6px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content {
        border-left: none;
        border-right: 4px solid var(--color-primary);
    }
}

/* ============================================
   EDUCATION SECTION
   ============================================ */

.education-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background);
}

.education-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.education-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.education-container {
    max-width: 900px;
    margin: 0 auto;
}

.education-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--border-radius);
    color: white;
}

.institution-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: white;
}

.institution-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.education-details h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.education-location {
    opacity: 0.9;
    font-size: 1rem;
}

.education-list {
    display: grid;
    gap: var(--spacing-md);
}

.education-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-secondary);
    transition: all var(--transition-fast);
}

.education-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.education-year {
    font-weight: 700;
    color: var(--color-secondary-dark);
    font-size: 0.9rem;
}

.education-degree h4 {
    font-size: 1.1rem;
    color: var(--color-primary);
}

/* Desktop Education */
@media (min-width: 768px) {
    .education-item {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .education-year {
        min-width: 140px;
        flex-shrink: 0;
    }
}

/* ============================================
   CLIENTS SECTION
   ============================================ */

.clients-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background-alt);
}

.clients-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.clients-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.clients-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    color: var(--color-text-light);
    font-size: 1.1rem;
    line-height: 1.6;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    min-height: 120px;
}

.client-logo:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.client-logo img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: filter var(--transition-fast);
}

.client-logo:hover img {
    filter: grayscale(0%);
}

/* Tablet Clients */
@media (min-width: 768px) {
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   PUBLICATIONS SECTION
   ============================================ */

.publications-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-background);
}

.publications-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.publications-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.publication-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.publication-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.publication-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.publication-content h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.publication-meta {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-primary);
}

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

.link-icon {
    transition: transform var(--transition-fast);
}

.publication-link:hover .link-icon {
    transform: translateX(3px);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.contact-section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-xl);
    color: white;
    position: relative;
    padding-bottom: var(--spacing-md);
}

.contact-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.contact-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

.contact-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    color: var(--color-secondary);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.contact-card h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-link {
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 1rem;
    word-break: break-word;
}

.contact-link:hover {
    color: var(--color-secondary-dark);
}

.contact-text {
    color: rgba(255, 255, 255, 0.9);
}

.cv-download-section {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.cv-download-section h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.cv-download-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* Tablet Contact */
@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop Contact */
@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    background: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-info {
    text-align: center;
}

.footer-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-title {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.footer-location {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-contact a:hover {
    color: var(--color-secondary);
}

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

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.8rem !important;
    opacity: 0.6 !important;
}

/* Tablet Footer */
@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .footer-info {
        text-align: left;
    }
    
    .footer-contact {
        text-align: right;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

/* Print styles */
@media print {
    .site-header,
    .hero-cta,
    .hero-social,
    .cv-download-section {
        display: none;
    }
    
    .hero-section {
        background: white;
        color: black;
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero-text h1 {
        color: black;
    }
    
    section {
        break-inside: avoid;
        padding: 1rem 0;
    }
}