/* ===================================
   CUSTOM PROPERTIES & THEMES
   =================================== */
:root {
    /* Colors - Dark Theme (default) */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1a1f2e;
    --bg-glass: rgba(255, 255, 255, 0.05);
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(255, 255, 255, 0.2);
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 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;
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

    :root[data-theme="light"] {
        /* Text */
        --text-primary: #0f172a;
        --text-secondary: #334155;
        --text-tertiary: #475569;
        --text-muted: #64748b;
        /* Backgrounds */
        --bg-primary: #ffffff;
        --bg-secondary: #f8fafc;
        --bg-tertiary: #e2e8f0;
        --bg-glass: rgba(248, 250, 252, 0.7);
        --bg-card: rgba(255, 255, 255, 0.9);
        /* Borders */
        --border-primary: rgba(51, 65, 85, 0.1);
        --border-secondary: rgba(51, 65, 85, 0.2);
        /* Colors */
        --color-primary: #2563eb;
        --color-secondary: #7c3aed;
    }

    :root[data-theme="dark"] {
    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-muted: #64748b;

    /* Backgrounds */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-glass: rgba(30, 41, 59, 0.7);
    --bg-card: rgba(30, 41, 59, 0.9);

    /* Borders */
    --border-primary: rgba(148, 163, 184, 0.1);
    --border-secondary: rgba(148, 163, 184, 0.2);

    /* Colors */
    --color-primary: #3b82f6;
    --color-secondary: #8b5cf6;
}

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

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

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

/* ===================================
   ANIMATED BACKGROUND
   =================================== */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: radial-gradient( ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent );
    animation: gradientShift 15s ease infinite;
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: linear-gradient(var(--border-color) 1px, transparent 1px), linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes gridMove {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(50px);
    }
}

/* ===================================
   TYPOGRAPHY
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

    a:hover {
        color: var(--accent-secondary);
    }

code, .code {
    font-family: var(--font-mono);
    background: var(--bg-glass);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    border: 1px solid var(--border-color);
}

/* ===================================
   LAYOUT
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

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

    .navbar .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

.logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all var(--transition-base);
}

.logo-bracket {
    color: var(--accent-primary);
    font-weight: 700;
}

.logo-name {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo:hover {
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

    .mobile-menu-toggle span {
        width: 24px;
        height: 2px;
        background: var(--text-primary);
        transition: all var(--transition-base);
        border-radius: 2px;
    }

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

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
    padding: var(--spacing-sm) 0;
}

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

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

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

.social-links-nav {
    display: flex;
    gap: var(--spacing-md);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--border-color);
}

.social-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

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

.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .theme-toggle:hover {
        background: var(--bg-secondary);
        border-color: var(--border-hover);
        color: var(--accent-primary);
        transform: rotate(15deg);
    }

/* Mobile Navigation */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg-card);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-base);
        pointer-events: none;
    }

        .nav-menu.active {
            transform: translateY(0);
            opacity: 1;
            pointer-events: all;
        }

    .social-links-nav {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: var(--spacing-md);
        width: 100%;
        justify-content: center;
    }
}

/* ===================================
   MAIN CONTENT
   =================================== */
main {
    margin-top: 73px;
    min-height: calc(100vh - 73px);
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

    .btn-secondary:hover {
        background: var(--bg-secondary);
        border-color: var(--accent-primary);
        color: var(--accent-primary);
    }

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

    .btn-ghost:hover {
        background: var(--bg-glass);
    }

/* ===================================
   CARDS
   =================================== */
.card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

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

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

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

.footer-section h3 {
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

    .footer-section ul li {
        margin-bottom: var(--spacing-sm);
    }

        .footer-section ul li a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

            .footer-section ul li a:hover {
                color: var(--accent-primary);
            }

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.footer-stack {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-social-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.social-links-footer {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-xl);
    text-align: center;
}

    .footer-bottom p {
        color: var(--text-muted);
        font-size: 0.875rem;
        margin: 0;
    }

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

    .reveal.active {
        opacity: 1;
        transform: translateY(0);
    }

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    min-height: calc(100vh - 73px);
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    font-weight: 800;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

    .hero-subtitle strong {
        color: var(--accent-primary);
        font-weight: 600;
    }

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: var(--font-mono);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

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

.hero-intro-expand {
    margin-top: var(--spacing-2xl);
}

.expand-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-size: 0.9375rem;
}

    .expand-toggle:hover {
        color: var(--accent-primary);
        background: var(--bg-glass);
    }

.expanded-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    margin-top: var(--spacing-md);
}

    .expanded-content.show {
        max-height: 200px;
    }

    .expanded-content p {
        color: var(--text-secondary);
        font-style: italic;
    }

/* ===================================
   SECTIONS
   =================================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

    .section-header h2 {
        margin-bottom: var(--spacing-md);
    }

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin: 0;
}

/* ===================================
   FILOSOFÍA SECTION
   =================================== */
.section-filosofia {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.filosofia-content {
    max-width: 800px;
    margin: 0 auto;
}

.filosofia-text .lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
}

.approach-list {
    margin: var(--spacing-3xl) 0;
}

    .approach-list h3 {
        text-align: center;
        margin-bottom: var(--spacing-xl);
        font-size: 1.5rem;
    }

.approach-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.approach-item {
    position: relative;
    padding: var(--spacing-xl);
    text-align: center;
}

.approach-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-md);
}

.approach-item h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.approach-item p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin: 0;
}

.filosofia-highlight {
    padding: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-primary);
}

.filosofia-final {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

/* ===================================
   PROYECTOS SECTION
   =================================== */
.project-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

    .filter-btn.active {
        background: var(--accent-gradient);
        border-color: transparent;
        color: white;
    }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.project-card {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

    .project-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--accent-gradient);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-base);
    }

    .project-card:hover::before {
        transform: scaleX(1);
    }

/* Project Logo */
.project-logo {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    position: relative;
}

    .project-logo::before {
        content: '';
        position: absolute;
        inset: -4px;
        background: var(--accent-gradient);
        border-radius: var(--radius-md);
        opacity: 0;
        transition: opacity var(--transition-base);
        z-index: -1;
    }

.project-card:hover .project-logo::before {
    opacity: 0.3;
}

.project-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.project-card:hover .project-logo img {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.project-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.8125rem;
    margin-bottom: 10px;
    font-weight: 600;
    width: fit-content;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

    .status-active .status-dot {
        background: var(--success);
    }

.status-development {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

    .status-development .status-dot {
        background: var(--warning);
    }

.status-mvp {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-primary);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

    .status-mvp .status-dot {
        background: var(--accent-primary);
    }

.status-closed {
    background: rgba(107, 114, 128, 0.1);
    color: var(--text-muted);
    border: 1px solid rgba(107, 114, 128, 0.2);
}

    .status-closed .status-dot {
        background: var(--text-muted);
    }

.project-header h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-pitch {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

.project-problem,
.project-solution,
.project-tech,
.project-learning {
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

    .project-problem h4,
    .project-solution h4,
    .project-tech h4 {
        font-size: 0.875rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--text-muted);
        margin-bottom: var(--spacing-sm);
        font-weight: 600;
    }

    .project-problem p,
    .project-solution p {
        color: var(--text-secondary);
        margin: 0;
        font-size: 0.9375rem;
    }

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.project-learning {
    background: rgba(139, 92, 246, 0.05);
    border-color: rgba(139, 92, 246, 0.2);
}

    .project-learning p {
        color: var(--text-secondary);
        font-size: 0.9375rem;
        margin: 0;
    }

    .project-learning strong {
        color: var(--accent-secondary);
    }

.project-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
    flex-wrap: wrap;
}

    .project-actions .btn {
        flex: 1;
        min-width: fit-content;
        justify-content: center;
    }

/* Otros experimentos */
.otros-experimentos {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 1px solid var(--border-color);
}

    .otros-experimentos h3 {
        text-align: center;
        margin-bottom: var(--spacing-xl);
    }

.experimentos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.experimento-item {
    text-align: center;
    padding: var(--spacing-xl);
}

    .experimento-item i {
        color: var(--accent-primary);
        margin-bottom: var(--spacing-md);
    }

    .experimento-item h4 {
        margin-bottom: var(--spacing-md);
    }

    .experimento-item p {
        color: var(--text-muted);
        font-size: 0.9375rem;
        margin: 0;
    }

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

    .hero-cta {
        flex-direction: column;
    }

        .hero-cta .btn {
            width: 100%;
        }

    .approach-items {
        grid-template-columns: 1fr;
    }

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

    .project-actions {
        flex-direction: column;
    }

        .project-actions .btn {
            width: 100%;
        }
}


/* ===================================
   TOAST NOTIFICATIONS
   =================================== */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
    transform: translateX(400px);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 9999;
    max-width: 300px;
}

    .toast.show {
        transform: translateX(0);
        opacity: 1;
    }

    .toast::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: var(--accent-gradient);
        border-radius: var(--radius-md) 0 0 var(--radius-md);
    }

@media (max-width: 768px) {
    .toast {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
    }
}

/* ===================================
   GALLERY MODAL
   =================================== */
.gallery-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

    .gallery-modal.active {
        opacity: 1;
        pointer-events: all;
    }

.gallery-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.gallery-modal-content {
    position: relative;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10;
}

    .gallery-close:hover {
        background: var(--error);
        border-color: var(--error);
        color: white;
        transform: rotate(90deg);
    }

.gallery-header {
    margin-bottom: var(--spacing-xl);
    padding-right: var(--spacing-3xl);
}

    .gallery-header h3 {
        margin: 0;
        font-size: 1.75rem;
    }

.gallery-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.gallery-image-wrapper {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

    .gallery-image-wrapper:hover {
        border-color: var(--accent-primary);
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }

    .gallery-image-wrapper img {
        width: 100%;
        height: auto;
        border-radius: var(--radius-md);
        display: block;
        margin-bottom: var(--spacing-md);
    }

.gallery-caption {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin: 0;
}

/* Responsive Gallery */
@media (max-width: 768px) {
    .gallery-modal-content {
        width: 95%;
        max-height: 95vh;
        padding: var(--spacing-lg);
    }

    .gallery-images {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .gallery-header {
        padding-right: var(--spacing-2xl);
    }

        .gallery-header h3 {
            font-size: 1.25rem;
        }
}

/* ===================================
   PROCESO SECTION
   =================================== */
.section-proceso {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.proceso-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.proceso-step {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
    position: relative;
}

.step-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 80px;
    text-align: center;
}

.step-content {
    flex: 1;
}

    .step-content h3 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }

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

/* Step Examples */
.step-examples {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.example-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
}

    .example-item.wrong {
        background: rgba(239, 68, 68, 0.1);
        border: 1px solid rgba(239, 68, 68, 0.2);
        color: var(--error);
    }

        .example-item.wrong i {
            color: var(--error);
        }

    .example-item.right {
        background: rgba(16, 185, 129, 0.1);
        border: 1px solid rgba(16, 185, 129, 0.2);
        color: var(--success);
    }

        .example-item.right i {
            color: var(--success);
        }

    .example-item span {
        color: var(--text-primary);
    }

/* Validation Examples */
.validation-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.validation-item {
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

    .validation-item strong {
        color: var(--accent-primary);
        font-size: 0.9375rem;
        display: block;
        margin-bottom: var(--spacing-xs);
    }

    .validation-item p {
        color: var(--text-muted);
        font-size: 0.875rem;
        margin: 0;
    }

/* MVP Highlight */
.mvp-highlight {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

    .mvp-highlight i {
        font-size: 2rem;
        color: var(--accent-primary);
    }

    .mvp-highlight p {
        margin: 0;
        color: var(--text-secondary);
    }

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

/* Iteration Example */
.iteration-example {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.iteration-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

    .iteration-header i {
        color: var(--accent-secondary);
        font-size: 1.5rem;
    }

    .iteration-header strong {
        font-size: 1.125rem;
        color: var(--text-primary);
    }

.iteration-timeline {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.iteration-phase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    min-width: 150px;
}

.phase-label {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--accent-primary);
}

.phase-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

.iteration-timeline > i {
    color: var(--text-muted);
}

/* Decision Matrix */
.decision-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

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

    .decision-item:hover {
        transform: translateY(-4px);
        border-color: var(--accent-primary);
    }

    .decision-item i {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }

    .decision-item strong {
        font-size: 1rem;
        color: var(--text-primary);
    }

    .decision-item span {
        font-size: 0.875rem;
        color: var(--text-muted);
    }

/* Quote Final */
.proceso-quote {
    margin-top: var(--spacing-3xl);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

    .proceso-quote blockquote {
        padding: var(--spacing-2xl);
        background: var(--bg-glass);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        border-left: 4px solid var(--accent-primary);
        position: relative;
    }

.quote-text {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.proceso-quote footer {
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-style: normal;
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .proceso-step {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .step-number {
        font-size: 2.5rem;
        min-width: auto;
    }

    .validation-examples,
    .decision-matrix {
        grid-template-columns: 1fr;
    }

    .iteration-timeline {
        flex-direction: column;
    }

        .iteration-timeline > i {
            transform: rotate(90deg);
        }
}

/* ===================================
   STACK SECTION
   =================================== */
.section-stack {
    background: var(--bg-primary);
}

.stack-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.stack-category {
    padding: var(--spacing-2xl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

    .category-header i {
        font-size: 2rem;
        color: var(--accent-primary);
    }

    .category-header h3 {
        margin: 0;
        font-size: 1.5rem;
        flex: 1;
    }

.category-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-primary);
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

    .tech-item:hover {
        border-color: var(--accent-primary);
        transform: translateX(4px);
    }

    .tech-item > i {
        font-size: 2rem;
        color: var(--accent-primary);
        min-width: 40px;
        text-align: center;
    }

.tech-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

    .tech-info strong {
        color: var(--text-primary);
        font-size: 1rem;
        font-weight: 600;
    }

    .tech-info span {
        color: var(--text-muted);
        font-size: 0.875rem;
    }

/* Soft Skills */
.soft-skills {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

    .soft-skills h3 {
        text-align: center;
        margin-bottom: var(--spacing-xl);
        font-size: 1.75rem;
    }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.skill-item {
    text-align: center;
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

    .skill-item:hover {
        transform: translateY(-8px);
    }

    .skill-item i {
        font-size: 2.5rem;
        color: var(--accent-secondary);
        margin-bottom: var(--spacing-md);
    }

    .skill-item h4 {
        margin-bottom: var(--spacing-sm);
        font-size: 1.125rem;
    }

    .skill-item p {
        color: var(--text-muted);
        font-size: 0.9375rem;
        margin: 0;
    }

/* ===================================
   CONTACTO SECTION
   =================================== */
.section-contacto {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.contacto-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.contacto-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.contacto-col {
    padding: var(--spacing-2xl);
}

.contacto-col-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

    .contacto-col-header i {
        font-size: 2rem;
    }

.contacto-col:first-child .contacto-col-header i {
    color: var(--success);
}

.contacto-col:last-child .contacto-col-header i {
    color: var(--error);
}

.contacto-col-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.contacto-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

    .contacto-list li {
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        background: var(--bg-glass);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        transition: all var(--transition-base);
    }

        .contacto-list li:hover {
            border-color: var(--accent-primary);
            transform: translateX(4px);
        }

        .contacto-list li i {
            color: var(--success);
            margin-top: 0.25rem;
        }

    .contacto-list.not-list li i {
        color: var(--error);
    }

    .contacto-list li span {
        color: var(--text-secondary);
        font-size: 0.9375rem;
        line-height: 1.6;
    }

/* Contact Methods */
.contacto-methods h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: 1.75rem;
}

.contact-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    text-decoration: none;
    transition: all var(--transition-base);
}

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

    .contact-method i {
        font-size: 2.5rem;
        color: var(--accent-primary);
        min-width: 50px;
        text-align: center;
    }

.contact-method-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

    .contact-method-info strong {
        color: var(--text-primary);
        font-size: 1.125rem;
    }

    .contact-method-info span {
        color: var(--text-muted);
        font-size: 0.875rem;
    }

/* Responsive */
@media (max-width: 768px) {
    .contacto-row {
        grid-template-columns: 1fr;
    }

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

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

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

/* ===================================
   SOCIAL BUBBLES MOBILE
   ================================== */

.social-bubbles-mobile {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: none; /* Oculto por defecto */
    flex-direction: row;
    gap: 12px;
    z-index: 998; /* Por debajo del navbar (999) */
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
    padding: 10px 16px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Mostrar solo en móvil */
@media (max-width: 768px) {
    .social-bubbles-mobile {
        display: flex;
    }
}

/* Ocultar cuando el menú está activo */
.social-bubbles-mobile.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
}

/* Burbujas individuales */
.social-bubble {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    flex-shrink: 0;
}

    .social-bubble::before {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 50%;
        background: inherit;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .social-bubble:hover {
        transform: scale(1.15) translateY(-4px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    }

    .social-bubble:active {
        transform: scale(0.95);
    }

    /* Colores específicos por red social */
    .social-bubble.tiktok {
        background: linear-gradient(135deg, #000000, #00f2ea);
    }

    .social-bubble.instagram {
        background: linear-gradient(135deg, #405de6, #5851db, #833ab4, #c13584, #e1306c, #fd1d1d);
    }

    .social-bubble.linkedin {
        background: linear-gradient(135deg, #0077b5, #00a0dc);
    }

    .social-bubble.youtube {
        background: linear-gradient(135deg, #ff0000, #cc0000);
    }

/* Animación de entrada */
@keyframes bubbleIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.social-bubble {
    animation: bubbleIn 0.4s ease backwards;
}

    .social-bubble:nth-child(1) {
        animation-delay: 0.1s;
    }

    .social-bubble:nth-child(2) {
        animation-delay: 0.15s;
    }

    .social-bubble:nth-child(3) {
        animation-delay: 0.2s;
    }

    .social-bubble:nth-child(4) {
        animation-delay: 0.25s;
    }

    /* Efecto ripple al hacer click */
    .social-bubble::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.3);
        opacity: 0;
        transform: scale(0);
        transition: transform 0.6s ease, opacity 0.6s ease;
    }

    .social-bubble:active::after {
        transform: scale(1.5);
        opacity: 0;
    }

/* Dark mode adjustments */
html[data-theme="dark"] .social-bubbles-mobile {
    background: rgba(15, 23, 42, 0.9);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

html[data-theme="dark"] .social-bubble {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

    html[data-theme="dark"] .social-bubble:hover {
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    }

/* Light mode adjustments */
html[data-theme="light"] .social-bubbles-mobile {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

html[data-theme="light"] .social-bubble {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

    html[data-theme="light"] .social-bubble:hover {
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    }

/* Ajuste para pantallas muy pequeñas */
@media (max-width: 380px) {
    .social-bubbles-mobile {
        gap: 8px;
        padding: 8px 12px;
    }

    .social-bubble {
        width: 44px;
        height: 44px;
        font-size: 1.125rem;
    }
}