:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-card: #1f2937;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --border: #374151;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent);
}

/* HERO SECTION (SOBRE MÍ) */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem 0;
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 40%);
}

.badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background-color: var(--accent-glow);
    color: #818cf8;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(99, 102, 241, 0.4);
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-content h1 span {
    background: linear-gradient(135deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin-bottom: 2.5rem;
}

.bio-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    max-width: 800px;
    transition: var(--transition);
}

.bio-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.bio-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    color: #a5b4fc;
    margin-bottom: 0.5rem;
}

.bio-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn.primary {
    background-color: var(--accent);
    color: white;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn.primary:hover {
    background-color: #4f46e5;
    transform: translateY(-2px);
}

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

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

/* SECTIONS */
.section {
    padding: 6rem 0;
    border-top: 1px solid var(--border);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* PROJECTS GRID */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px var(--accent-glow);
}

.card-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.project-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-card);
    color: #a5b4fc;
    border-radius: 50px;
    border: 1px solid var(--border);
}

/* CONTACT SECTION */
.contact-container {
    max-width: 800px;
}

.contact-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 1.75rem;
    color: var(--accent);
    background-color: var(--bg-card);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.contact-item h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-item a, .contact-item p {
    color: var(--text-main);
    font-size: 1.1rem;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--accent);
}

/* FOOTER */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .nav-links {
        display: none;
    }
}

/* ESTILOS PARA TARJETAS CLICKEABLES Y PÁGINAS DE DETALLE */
.project-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card {
    position: relative;
    cursor: pointer;
    height: 100%;
}

.card-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.project-card:hover .card-action {
    gap: 0.75rem;
}

/* PÁGINAS DE DETALLE */
.detail-page {
    padding: 9rem 0 5rem 0;
    min-height: 80vh;
}

.detail-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem auto;
}

.detail-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
}

.detail-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.detail-content {
    max-width: 850px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.detail-block h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.3rem;
    color: #a5b4fc;
    margin-bottom: 1rem;
}

.detail-block p, .detail-block li {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
}

.detail-block ul {
    list-style-position: inside;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.detail-actions {
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

/* ESTILOS PARA SECCIÓN DE ESTUDIOS Y CURSOS */
.section-title-left {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #f8fafc;
}

.section-title-left i {
    color: var(--accent);
}

.education-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.edu-category {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
}

.edu-category:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.edu-level {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #818cf8;
    background-color: var(--accent-glow);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

.edu-card h3 {
    font-size: 1.25rem;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.edu-place {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.edu-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.course-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    transition: var(--transition);
}

.course-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.course-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.course-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.nav-cv-btn {
    background-color: var(--accent);
    color: white !important;
    padding: 0.4rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-cv-btn:hover {
    background-color: #4f46e5 !important;
}

/* ESTILOS PARA SECCIÓN DE ESTUDIOS Y CURSOS */
.section-title-left {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #f8fafc;
}

.section-title-left i {
    color: var(--accent);
}

.education-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.edu-category {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
}

.edu-category:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.edu-level {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #818cf8;
    background-color: var(--accent-glow);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

.edu-card h3 {
    font-size: 1.25rem;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.edu-place {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.edu-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.course-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    transition: var(--transition);
}

.course-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.course-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.course-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.nav-cv-btn {
    background-color: var(--accent);
    color: white !important;
    padding: 0.4rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-cv-btn:hover {
    background-color: #4f46e5 !important;
}

/* ESTILOS PARA SECCIÓN DE EXPERIENCIA */
.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.exp-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
}

.exp-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.exp-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #38bdf8;
    background-color: rgba(56, 189, 248, 0.15);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.exp-card h3 {
    font-size: 1.3rem;
    color: var(--text-main);
    margin-bottom: 0.15rem;
}

.exp-card h4 {
    font-size: 1.05rem;
    color: #a5b4fc;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.exp-date {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

/* ESTILOS PARA HABILIDADES TÉCNICAS */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.skill-category-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: var(--transition);
}

.skill-category-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 0 20px var(--accent-glow);
}

.skill-category-card h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    color: #a5b4fc;
    margin-bottom: 0.75rem;
}

.skill-category-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}