/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Prevent horizontal scroll on all elements */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

/* Ensure all images and media respect container width */
img, 
video, 
iframe, 
svg {
    max-width: 100%;
    height: auto;
}

:root {
    /* Light Mode Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --text-primary: #111111;
    --text-secondary: #666666;
    --accent-primary: #dd2076;
    --accent-hover: #b91a61;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 2.5rem;
    --font-size-3xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: #111111;
    --bg-secondary: #1A1A1A;
    --text-primary: #EEEEEE;
    --text-secondary: #AAAAAA;
    --accent-primary: #dd2076;
    --accent-hover: #ff3d8f;
    --border-color: #333333;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
}

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

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

/* Custom Scrollbar */
/* Light Mode Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Dark Mode Scrollbar */
[data-theme="dark"] ::-webkit-scrollbar-track {
    background: #0a0a0a;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 6px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #888 #f1f1f1;
}

[data-theme="dark"] * {
    scrollbar-color: #555 #0a0a0a;
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #888 #f1f1f1;
}

[data-theme="dark"] * {
    scrollbar-color: #555 #0a0a0a;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.logo a:hover {
    color: var(--accent-primary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation Links */
.mobile-nav-links {
    display: none;
}

/* Header Controls (Languages, Theme, Contact button) */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 0.25rem;
    background-color: var(--bg-secondary);
    border: none;
    border-radius: 10px;
    padding: 0.35rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 0.6rem 0.9rem;
    cursor: pointer;
    border-radius: 8px;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
    opacity: 0.5;
}

.lang-btn:hover {
    opacity: 0.9;
    background-color: rgba(221, 32, 118, 0.1);
    transform: scale(1.05);
}

.lang-btn.active {
    background-color: var(--accent-primary);
    opacity: 1;
    box-shadow: 0 2px 6px rgba(221, 32, 118, 0.3);
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 50px;
    height: 50px;
    background-color: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 8px rgba(221, 32, 118, 0.3);
}

.theme-toggle i {
    position: absolute;
    font-size: 1.2rem;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle .fa-sun {
    opacity: 1;
}

.theme-toggle .fa-moon {
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    opacity: 1;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

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

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: var(--font-size-md);
    width: 100%;
    justify-content: center;
}

.btn-spotify {
    background-color: #1DB954;
    color: white;
}

.btn-spotify:hover {
    background-color: #1ED760;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-md);
}

.hero-image {
    position: relative;
    width: 200px;
    height: 200px;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-primary);
    box-shadow: var(--shadow-lg);
    animation: fadeInScale 0.8s ease;
    transition: all var(--transition-normal);
}

.profile-img:hover {
    transform: scale(1.05) rotate(2deg);
    box-shadow: 0 15px 50px rgba(221, 32, 118, 0.3);
    border-width: 6px;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.6s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-sm);
    animation: fadeInUp 0.8s ease 0.8s both;
}

.social-links a {
    width: 50px;
    height: 50px;
    background-color: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.social-links a:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: translateY(-5px);
}

/* ========================================
   SECTIONS
   ======================================== */
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.project-card {
    background-color: var(--bg-primary);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.project-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.project-title-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.project-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    opacity: 0.6;
    transition: all 0.3s ease;
    filter: grayscale(50%);
    flex-shrink: 0;
}

.project-card:hover .project-logo {
    opacity: 1;
    filter: grayscale(0%);
    animation: vibrate 0.3s ease-in-out;
}

@keyframes vibrate {
    0%, 100% { transform: translate(0, 0); }
    10%, 30%, 50%, 70%, 90% { transform: translate(-2px, 0); }
    20%, 40%, 60%, 80% { transform: translate(2px, 0); }
}

.project-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin: 0;
}

.project-role {
    font-size: var(--font-size-xs);
    color: var(--accent-primary);
    background-color: var(--bg-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 500;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.project-ctas {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.project-ctas .btn {
    width: 100%;
    justify-content: center;
    white-space: nowrap;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 44px;
    padding: 0.75rem 1rem;
    line-height: 1.4;
}

@media (max-width: 767px) {
    .project-ctas .btn {
        white-space: normal;
        word-break: keep-all;
        hyphens: none;
    }
}

/* ========================================
   TIMELINE SECTION
   ======================================== */
.experience {
    padding: var(--spacing-lg) 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--accent-primary);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: 11px;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
}

.timeline-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.timeline-content:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.timeline-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.timeline-duration {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--accent-primary);
    background-color: var(--bg-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
}

.timeline-role {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   SKILLS SECTION
   ======================================== */
.skills {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-secondary);
}

/* Top Row: Business & Idiomas */
.skills-top-row {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* Tech Stack Section */
.tech-stack-section {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.tech-stack-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.tech-main-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.tech-stack-grid {
    display: grid;
    gap: var(--spacing-md);
}

.tech-category {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.tech-category:hover {
    background-color: var(--accent-primary);
    transform: translateY(-3px);
}

.tech-category:hover .tech-category-title {
    color: white;
}

.tech-category:hover .skills-list-compact li {
    color: white;
    opacity: 0.95;
}

[data-theme="light"] .tech-category .tech-category-title {
    color: var(--accent-primary);
}

[data-theme="light"] .tech-category .skills-list-compact li {
    color: #666;
}

[data-theme="light"] .tech-category:hover .tech-category-title {
    color: #1a1a1a;
}

[data-theme="light"] .tech-category:hover .skills-list-compact li {
    color: #1a1a1a;
    opacity: 1;
}

.tech-category-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
    text-align: center;
    transition: color var(--transition-fast);
}

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

.skills-column {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.skills-column:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.skills-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.skills-list {
    list-style: none;
}

.skills-list li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background-color: var(--bg-secondary);
    border-radius: 8px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.skills-list-compact li {
    padding: 0.5rem;
    font-size: var(--font-size-xs);
    margin-bottom: 0.25rem;
}

.skills-list li:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: translateX(8px) scale(1.05);
    box-shadow: var(--shadow-md);
}

.skills-list i {
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}

.skills-list-compact i {
    font-size: 1.2rem;
    width: 25px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background-color: var(--bg-primary);
}

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

.footer-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

/* Newsletter */
.newsletter-section {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.newsletter-text {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    position: relative;
    z-index: 10;
}

.newsletter-input {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(221, 32, 118, 0.1);
}

/* Email autocomplete dropdown */
.email-autocomplete {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 10000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    display: none;
}

.email-autocomplete.active {
    display: block;
}

.email-suggestion {
    padding: 0.9rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
}

.email-suggestion:last-child {
    border-bottom: none;
}

.email-suggestion:hover,
.email-suggestion.selected {
    background: var(--accent-primary);
    color: white;
}

.email-suggestion .domain {
    color: var(--accent-primary);
    font-weight: 600;
}

.email-suggestion:hover .domain,
.email-suggestion.selected .domain {
    color: white;
}

/* Footer Social */
.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-social a {
    width: 60px;
    height: 60px;
    background-color: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.75rem;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.footer-social a:hover {
    background-color: var(--accent-primary);
    color: white;
    transform: translateY(-5px) scale(1.1);
}

/* Footer Legal */
.footer-legal {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
}

.footer-credit {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.footer-credit a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ========================================
   RESPONSIVE DESIGN (Desktop)
   ======================================== */
@media (max-width: 767px) {
    /* Prevent horizontal scroll on mobile */
    html, body {
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    /* Ensure container doesn't overflow */
    .container {
        max-width: 100%;
        padding: 0 1rem;
        overflow-x: hidden;
    }
    
    /* Ensure all sections don't overflow */
    section {
        max-width: 100%;
        overflow-x: hidden;
    }
    
    /* Show hamburger menu */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hide desktop contact button on mobile */
    .btn-contact-header {
        display: none;
    }
    
    /* Mobile Nav */
    .header-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-primary);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 2rem;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
        z-index: 1000;
        overflow-y: auto;
    }
    
    .header-nav.active {
        right: 0;
    }
    
    .mobile-nav-links {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .nav-link {
        color: var(--text-primary);
        text-decoration: none;
        font-weight: 600;
        font-size: 1.125rem;
        padding: 1rem;
        border-radius: 8px;
        background-color: var(--bg-secondary);
        transition: all var(--transition-fast);
        text-align: center;
    }
    
    .nav-link:hover,
    .nav-link:active {
        background-color: var(--accent-primary);
        color: white;
        transform: translateX(5px);
    }
    
    .header-controls {
        flex-direction: column;
        width: 100%;
        gap: 1.25rem;
        padding: 0 0.5rem;
    }
    
    .language-selector {
        width: 100%;
        justify-content: center;
        padding: 0.5rem;
    }
    
    .lang-btn {
        padding: 0.75rem 1.2rem;
        font-size: 1.3rem;
    }
    
    .theme-toggle {
        width: 100%;
        height: 55px;
        border-radius: 12px;
    }
    
    .theme-toggle i {
        font-size: 1.4rem;
    }
    
    /* Hero Section Mobile - Image as Background */
    .hero {
        position: relative;
        min-height: 85vh;
        padding: var(--spacing-md) 0;
    }
    
    .hero-content {
        position: relative;
        z-index: 2;
        align-items: flex-start;
        text-align: left;
    }
    
    .hero-image {
        position: absolute;
        left: -50px;
        top: 20%;
        transform: translateY(0);
        width: 300px;
        height: 300px;
        z-index: 1;
        opacity: 0.15;
        pointer-events: none;
    }
    
    .profile-img {
        filter: grayscale(20%);
        border: none;
        box-shadow: none;
    }
    
    .profile-img:hover {
        transform: none;
        box-shadow: none;
        border-width: 0;
    }
    
    .hero-text {
        position: relative;
        z-index: 2;
        width: 100%;
    }
    
    .hero-title {
        font-size: 2rem;
        text-align: left;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        text-align: left;
        margin-bottom: 1rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
        text-align: left;
        max-width: 100%;
    }
    
    .social-links {
        justify-content: flex-start;
    }
    
    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card {
        max-width: 100%;
        width: 100%;
        padding: 1.5rem;
    }
    
    .project-logo {
        width: 40px;
        height: 40px;
    }
    
    .project-header {
        gap: 0.75rem;
    }
    
    .project-title-wrapper {
        gap: 0.75rem;
    }
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-lg);
    }
    
    .hero-image {
        width: 300px;
        height: 300px;
        flex-shrink: 0;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-ctas {
        flex-direction: row;
    }
    
    /* Skills responsive layout */
    .skills-top-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-stack-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .newsletter-form {
        flex-direction: row;
    }
    
    .newsletter-input {
        flex: 1;
    }
    
    .btn-large {
        width: auto;
    }
}

@media (min-width: 1024px) {
    .hero {
        min-height: 90vh;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    /* Tech Stack 4 columnas en desktop */
    .tech-stack-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========================================
   ANIMATIONS (AOS)
   ======================================== */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}