/* ============================================
    CSS Variables & Reset
============================================ */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0b;
    --color-bg-secondary: #111113;
    --color-bg-tertiary: #18181b;
    --color-bg-card: #1a1a1d;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-accent: #6366f1;
    --color-accent-hover: #818cf8;
    --color-accent-muted: rgba(99, 102, 241, 0.1);
    --color-border: #27272a;
    --color-border-hover: #3f3f46;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;

    /* Navbar specific */
    --navbar-bg: rgba(10, 10, 11, 0.8);

    /* Project metrics */
    --metric-text: #a7f3d0;
    --metric-bg: rgba(16, 185, 129, 0.15);
    --metric-border: rgba(16, 185, 129, 0.3);
    --metric-value: #10b981;

    /* Project overlay */
    --project-overlay-bg: linear-gradient(180deg, transparent 0%, rgba(10, 10, 11, 0.9) 100%);
}

/* ============================================
    Light Theme Variables
============================================ */
[data-theme="light"] {
    /* Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f1f3f5;
    --color-bg-card: #ffffff;
    --color-text-primary: #18181b;
    --color-text-secondary: #52525b;
    --color-text-muted: #71717a;
    --color-accent: #6366f1;
    --color-accent-hover: #4f46e5;
    --color-accent-muted: rgba(99, 102, 241, 0.08);
    --color-border: #e4e4e7;
    --color-border-hover: #d4d4d8;

    /* Shadows - más sutiles en tema claro */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

    /* Navbar specific */
    --navbar-bg: rgba(255, 255, 255, 0.8);

    /* Project metrics - colores más oscuros para mejor contraste en modo claro */
    --metric-text: #047857;
    --metric-bg: rgba(16, 185, 129, 0.1);
    --metric-border: rgba(16, 185, 129, 0.4);
    --metric-value: #065f46;

    /* Project overlay */
    --project-overlay-bg: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.95) 100%);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

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

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

ul, ol {
    list-style: none;
}

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

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

.highlight {
    color: var(--color-accent);
}

/* ============================================
    Navbar
============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background-color: var(--navbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    border-bottom-color: var(--color-border);
}

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

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

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

.logo-bracket {
    color: var(--color-accent);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

.nav-link.active {
    color: var(--color-accent);
}

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

.nav-link-cta {
    color: var(--color-accent);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
}

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

.nav-link-cta:hover {
    color: var(--color-text-primary);
    background-color: var(--color-accent-muted);
}

.nav-toggle {
    display: none;
    width: 32px;
    height: 32px;
    position: relative;
}

.hamburger, .hamburger::before, .hamburger::after {
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.hamburger {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hamburger::before, .hamburger::after {
    content: '';
    left: 0;
}

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

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

.nav-toggle.active .hamburger {
    background-color: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
    margin-right: var(--spacing-md);
}

.theme-toggle:hover {
    background-color: var(--color-accent-muted);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover svg {
    color: var(--color-accent);
    transform: rotate(15deg);
}

.theme-icon {
    display: none;
}

[data-theme="dark"] .theme-icon-sun {
    display: block;
}

[data-theme="light"] .theme-icon-moon {
    display: block;
}

/* ============================================
    Hero Section
============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-4xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    filter: blur(60px);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-greeting {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    min-height: 2em;
}

.typing-text {
    display: inline;
}

.cursor {
    animation: blink 1s infinite;
    color: var(--color-accent);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    color: var(--color-accent);
    background-color: var(--color-accent-muted);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

.hero-image-border {
    position: absolute;
    inset: -8px;
    border-radius: var(--radius-xl);
    border: 2px solid var(--color-accent);
    opacity: 0.3;
    animation: pulse-border 3s ease-in-out infinite;
}

@keyframes pulse-border {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.02); }
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
    filter: grayscale(20%);
    transition: filter var(--transition-base);
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 2px;
    animation: scroll-wheel 1.5s infinite;
}

@keyframes scroll-wheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(10px); opacity: 0; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
    Buttons
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

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

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

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

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

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-icon-right {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon-right {
    transform: translateX(4px);
}

/* ============================================
    Sections
============================================ */
.section {
    padding: var(--spacing-4xl) 0;
}

.section-alt {
    background-color: var(--color-bg-secondary);
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--spacing-3xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--color-border) 0%, transparent 100%);
    max-width: 300px;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-accent);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-top: calc(var(--spacing-3xl) * -1);
    margin-bottom: var(--spacing-2xl);
}

/* ============================================
    About Section
============================================ */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.about-text p:last-child {
    margin-bottom: 0;
}

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

.stat-card {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
    Timeline (Experience)
============================================ */
.timeline {
    position: relative;
    padding-left: var(--spacing-2xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-border));
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-2xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(var(--spacing-2xl) * -1 - 6px);
    top: 6px;
    width: 14px;
    height: 14px;
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.timeline-item:hover .timeline-marker {
    background-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.timeline-content {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.timeline-item:hover .timeline-content {
    border-color: var(--color-border-hover);
}

.timeline-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.timeline-company {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent);
}

.timeline-date {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.timeline-description {
    margin-bottom: var(--spacing-md);
}

.timeline-description li {
    position: relative;
    padding-left: var(--spacing-lg);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.timeline-description li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-accent-muted);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
}

/* ============================================
    Education Section
============================================ */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.education-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.education-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.education-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-accent-muted);
    border-radius: var(--radius-md);
}

.education-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.education-content {
    flex: 1;
}

.education-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.education-institution {
    display: block;
    font-size: 0.875rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.education-date {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.education-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ============================================
    Skills Section
============================================ */
.skills-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.skills-category {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.skills-category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.skills-category-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.skill-name {
    min-width: 100px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.skill-name svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease-out;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.skill-tag:hover {
    background-color: var(--color-accent-muted);
    color: var(--color-accent);
}

.skill-tag svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ============================================
    Projects Section
============================================ */
.projects-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.project-filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background-color: var(--color-accent-muted);
}

.filter-btn.active {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background-color: var(--color-accent-muted);
    font-weight: 600;
}

.view-toggles {
    display: flex;
    gap: 4px;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 4px;
}

.view-toggle-btn {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-toggle-btn:hover {
    color: var(--color-accent);
    background-color: var(--color-accent-muted);
}

.view-toggle-btn.active {
    color: var(--color-accent);
    background-color: var(--color-accent-muted);
}

.view-toggle-btn svg {
    width: 20px;
    height: 20px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-xl);
    transition: all var(--transition-base);
}

.projects-grid.list-view {
    grid-template-columns: 1fr;
}

.projects-grid.list-view .project-card {
    display: grid !important;
    grid-template-columns: 280px 1fr;
    gap: 0;
    min-height: 320px;
    max-height: none;
}

.projects-grid.list-view .project-image {
    height: 100%;
    min-height: 320px;
}

.projects-grid.list-view .project-image img {
    height: 100%;
    object-fit: contain;
    padding: var(--spacing-sm);
    transform: scale(1.6);
}

.projects-grid.list-view .project-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-sm);
}

.projects-grid.list-view .project-description {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.projects-grid.list-view .project-metrics {
    flex-wrap: wrap;
}

.projects-grid.list-view .project-badges {
    flex-wrap: wrap;
}

.project-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.project-card.hidden {
    display: none !important;
}

/* Asegurar que los filtros funcionen también en vista de lista */
.projects-grid .project-card.hidden,
.projects-grid.list-view .project-card.hidden {
    display: none !important;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, var(--color-accent), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2), var(--shadow-glow);
}

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

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background-color: var(--color-bg-tertiary);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all var(--transition-slow);
    padding: var(--spacing-sm);
    filter: brightness(0.9);
}

.project-card:hover .project-image img {
    transform: scale(1.1) rotate(2deg);
    filter: brightness(1.1);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: var(--project-overlay-bg);
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.project-link svg {
    width: 20px;
    height: 20px;
}

.project-link:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}

.project-content {
    padding: var(--spacing-lg);
}

.project-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.impact-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-high-impact {
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-automation {
    background-color: rgba(168, 85, 247, 0.15);
    color: #a855f7;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-data-driven {
    background-color: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

[data-theme="light"] .badge-high-impact {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

[data-theme="light"] .badge-automation {
    background-color: rgba(168, 85, 247, 0.1);
    color: #9333ea;
}

[data-theme="light"] .badge-data-driven {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.project-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: var(--spacing-sm) 0;
}

.project-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.project-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.metric {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--metric-text);
    background-color: var(--metric-bg);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    border: 1px solid var(--metric-border);
}

.metric-value {
    font-weight: 600;
    color: var(--metric-value);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.projects-cta {
    margin-top: var(--spacing-2xl);
    text-align: center;
}

/* ============================================
    Hobbies Section
============================================ */
.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.hobby-card {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.hobby-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.hobby-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-accent-muted);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
}

.hobby-card:hover .hobby-icon {
    background-color: var(--color-accent);
}

.hobby-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.hobby-card:hover .hobby-icon svg {
    color: var(--color-text-primary);
}

.hobby-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.hobby-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ============================================
    Project Modal
============================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 2000;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.modal-header-content {
    flex: 1;
}

.modal-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.modal-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.modal-close:hover {
    background-color: var(--color-accent-muted);
    color: var(--color-accent);
}

.modal-close svg {
    width: 24px;
    height: 24px;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-section {
    margin-bottom: var(--spacing-2xl);
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-section-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.modal-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.modal-list {
    list-style: none;
    padding: 0;
}

.modal-list li {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    color: var(--color-text-secondary);
}

.modal-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.2em;
}

.modal-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.modal-metric-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
}

.modal-metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.modal-metric-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.project-details-btn {
    background-color: var(--color-accent-muted);
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-md);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.project-details-btn:hover {
    background-color: var(--color-accent);
    color: #ffffff;
    transform: translateX(4px);
}

.project-details-btn svg {
    width: 16px;
    height: 16px;
}

/* ============================================
    Contact Section
============================================ */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-heading {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.contact-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.contact-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-accent-muted);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-card:hover .contact-icon {
    background-color: var(--color-accent);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.contact-card:hover .contact-icon svg {
    color: var(--color-text-primary);
}

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

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.contact-value {
    font-size: 0.9375rem;
    color: var(--color-text-primary);
}

/* ============================================
    Footer
============================================ */
.footer {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ============================================
    Animations
============================================ */
.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-delay-1 {
    opacity: 0;
    animation: fadeIn 0.6s ease 0.2s forwards;
}

.animate-fade-in-delay-2 {
    opacity: 0;
    animation: fadeIn 0.6s ease 0.4s forwards;
}

.animate-fade-in-delay-3 {
    opacity: 0;
    animation: fadeIn 0.6s ease 0.6s forwards;
}

.animate-fade-in-delay-4 {
    opacity: 0;
    animation: fadeIn 0.6s ease 0.8s forwards;
}

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

/* Scroll Animations */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

/* ============================================
    Responsive Design
============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-social {
        justify-content: center;
    }

    .hero-image {
        order: -1;
        margin-top: 60px;
    }

    .hero-image-wrapper {
        width: 250px;
        height: 250px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .nav-toggle {
        display: block;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 300px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        background-color: var(--color-bg-secondary);
        border-left: 1px solid var(--color-border);
        padding: var(--spacing-2xl);
        transition: right var(--transition-base);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.125rem;
        padding: var(--spacing-md) 0;
    }

    .nav-link-cta {
        margin-top: var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-3xl) 0;
        padding-top: 100px;
    }

    .hero-title {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0;
        min-height: 4em;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .timeline {
        padding-left: var(--spacing-lg);
    }

    .timeline-marker {
        left: calc(var(--spacing-lg) * -1 - 6px);
    }

    .education-card {
        flex-direction: column;
        text-align: center;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .hobbies-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }

    .scroll-indicator {
        display: none;
    }

    /* List view responsive: stack vertically on mobile */
    .projects-grid.list-view .project-card {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .projects-grid.list-view .project-image {
        min-height: 180px;
        max-height: 200px;
    }

    .projects-grid.list-view .project-description {
        -webkit-line-clamp: 5;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 120px;
    }

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

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .hobbies-grid {
        grid-template-columns: 1fr;
    }

    .skill-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .skill-name {
        min-width: auto;
    }

    .skill-bar {
        width: 100%;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}