@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;600&family=Manrope:wght@300;400;500&display=swap');

:root {
    /* Light theme (default) */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.15);
    --border: #e2e8f0;
    --spacing-unit: 8px;
}

[data-theme="dark"] {
    --bg-primary: #0b1221;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-muted: #cbd5e1;
    --accent: #60a5fa;
    --accent-glow: rgba(96, 165, 250, 0.25);
    --border: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Gradient glow background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-glow), transparent),
        radial-gradient(ellipse 60% 40% at 80% 50%, rgba(37, 99, 235, 0.1), transparent),
        radial-gradient(ellipse 40% 30% at 20% 80%, rgba(29, 78, 216, 0.08), transparent);
    pointer-events: none;
    z-index: -1;
}

/* Subtle grid overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 64px 64px;
    background-position: 0 0;
    opacity: 0.05;
    pointer-events: none;
    z-index: -1;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

[data-theme="dark"] nav {
    background: rgba(10, 10, 10, 0.8);
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    border-color: var(--text-muted);
    background: var(--bg-tertiary);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: var(--text-secondary);
    stroke-width: 2;
}

/* Language Selector */
.lang-selector {
    position: relative;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    border-color: var(--text-muted);
    background: var(--bg-tertiary);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 0;
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    padding: 10px 16px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-option:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.lang-option.active {
    color: var(--accent);
}

.lang-flag {
    font-size: 14px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    gap: 64px;
}

.hero-content {
    flex: 1.2;
    max-width: 800px;
}

.hero-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.2s forwards;
}

.hero-title {
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.4s forwards;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title span {
    font-weight: 500;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.6s forwards;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 500px;
    height: 400px;
    opacity: 0;
    animation: fadeIn 1s ease 0.8s forwards;
}

.hero-visual svg circle:nth-child(2),
.hero-visual svg circle:nth-child(3) {
    transform-origin: center;
    animation: rotateSlow 20s linear infinite;
}

.hero-visual svg path {
    transform-origin: center;
    animation: rotateSlow 10s linear infinite reverse;
}

.hero-visual svg {
    width: 100%;
    height: 100%;
}

.hero-visual svg circle[stroke="var(--border)"] {
    /* Mejora de contraste en modo light */
    stroke: var(--text-muted);
    stroke-opacity: 0.4;
}

[data-theme="dark"] .hero-visual svg circle[stroke="var(--border)"] {
    /* Contraste optimizado para modo dark */
    stroke: var(--border);
    stroke-opacity: 0.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    opacity: 0;
    animation: fadeIn 0.8s ease 1s forwards;
}

@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: 120px;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        max-width: 100%;
    }
}

.btn {
    padding: 14px 28px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    text-decoration: none;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: #2563eb;
    border-color: #2563eb;
    box-shadow: 0 0 24px var(--accent-glow);
}

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

.btn-secondary:hover {
    border-color: var(--text-muted);
}

/* Section Styles */
section {
    padding: 128px 48px;
    border-top: 1px solid var(--border);
}

.section-header {
    margin-bottom: 80px;
}

.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.section-title {
    font-size: 56px;
    font-weight: 300;
    letter-spacing: -1px;
}

/* Experience Section */
.experience-timeline {
    max-width: 900px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* Education Section */
.education-grid {
    max-width: 900px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.experience-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 32px;
    transition: all 0.3s ease;
}

.experience-item:hover {
    border-color: var(--text-muted);
    transform: translateX(4px);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    gap: 24px;
    flex-wrap: wrap;
}

.experience-role {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.experience-company {
    font-size: 14px;
    color: var(--text-secondary);
}

.experience-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.experience-period {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
}

.experience-location {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
}

.experience-responsibilities {
    list-style: none;
    padding-left: 0;
}

.experience-responsibilities li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

.experience-responsibilities li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Education Section */
.education-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 24px 32px;
    transition: all 0.3s ease;
}

.education-item:hover {
    border-color: var(--text-muted);
    transform: translateX(4px);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    flex-wrap: wrap;
}

.education-degree {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.education-institution {
    font-size: 14px;
    color: var(--text-secondary);
}

.education-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.education-period {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
}

.education-location {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    max-width: 1200px;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 32px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.project-card:hover {
    border-color: var(--text-muted);
    transform: translateY(-4px);
}

.project-card:hover .project-arrow {
    opacity: 1;
    transform: translate(4px, -4px);
}

.project-arrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 24px;
    opacity: 0;
    transition: all 0.3s ease;
}

.project-title {
    font-size: 32px;
    font-weight: 400;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.project-period {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.project-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tech-tag i {
    width: 14px;
    height: 14px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-tag i svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* Skills Section */
.skills-container {
    max-width: 1000px;
}

.skill-group {
    margin-bottom: 40px;
}

.skill-group-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-item {
    font-size: 14px;
    padding: 20px 16px 24px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    min-width: 120px;
    text-align: center;
}

.skill-item i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin: 0 auto 12px auto;
}

/* Para iconos SVG */
.skill-item i svg {
    width: 40px;
    height: 40px;
    fill: var(--text-primary);
}

/* Para font-icons (cuando no hay SVG) */
.skill-item i:not(:has(svg))::before {
    font-size: 40px !important;
    color: var(--text-primary);
}

.skill-bar-container {
    position: absolute;
    bottom: 8px;
    left: 12px;
    right: 12px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width 1s ease-out;
}

.skill-item:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Soft Skills Section */
.soft-skills-section {
    margin-top: 64px;
}

.soft-skills-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.soft-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    max-width: 800px;
}

.soft-skill-item {
    font-size: 16px;
    padding: 14px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    text-align: center;
}

.soft-skill-item:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Contact Section */
.contact-content {
    max-width: 600px;
}

.contact-text {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.contact-link:hover {
    padding-left: 16px;
}

.contact-link-text {
    font-size: 16px;
}

.contact-link-arrow {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 32px 48px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
}

.footer-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
}

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

@keyframes rotateSlow {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 20px 24px;
    }

    .nav-right {
        gap: 12px;
    }

    .nav-links {
        display: none;
    }

    .hero, section {
        padding: 80px 24px;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}