@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Brand Colors (Dark Theme default) - Rojo-Granate Selección Española 2026 */
    --primary-color: #a81a3d;
    --primary-hover: #c92c53;
    --primary-rgb: 168, 26, 61;
    --primary-glow: rgba(var(--primary-rgb), 0.25);

    /* Semantic Colors - mapped to legacy variable names for seamless transition */
    --dark-bg: #0b0b0f;
    --darker-bg: #050507;
    --light-text: #f8fafc;
    --gray-text: #94a3b8;
    --card-bg: #12121a;
    --border-color: #1e1e2f;

    /* Layout styling */
    --max-width: 980px;
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --glass-bg: rgba(11, 11, 15, 0.65);
    --glass-bg-opaque: rgba(11, 11, 15, 0.92);
    --glass-border: rgba(255, 255, 255, 0.06);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --primary-color: #8c1330;
    --primary-hover: #6e0e24;
    --primary-rgb: 140, 19, 48;
    --primary-glow: rgba(var(--primary-rgb), 0.15);

    --dark-bg: #f8fafc;
    --darker-bg: #f1f5f9;
    --light-text: #0f172a;
    --gray-text: #64748b;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;

    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.06);
    --glass-bg: rgba(248, 250, 252, 0.7);
    --glass-bg-opaque: rgba(248, 250, 252, 0.95);
    --glass-border: rgba(0, 0, 0, 0.06);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

/* Reading Progress Bar */
.reading-progress-container {
    width: 100%;
    height: 4px;
    background: transparent;
    position: absolute;
    bottom: 0;
    left: 0;
}

.reading-progress-bar {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    border-radius: 0 2px 2px 0;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 8px var(--primary-glow);
}

#navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    white-space: nowrap;
    word-break: keep-all;
    overflow-wrap: normal;
    display: inline-flex;
    align-items: baseline;
}

.logo span {
    color: var(--primary-color);
    white-space: nowrap;
    display: inline-block;
    vertical-align: baseline;
}

.nav-links {
    display: flex;
    gap: 2rem;
    font-size: 0.95rem;
    font-weight: 500;
    align-items: center;
}

.nav-links a {
    position: relative;
    padding: 0.5rem 0;
    color: var(--gray-text);
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Hamburger Menu Button */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
}

.hamburger-btn:hover {
    color: var(--primary-color);
}

/* Theme Toggle Button */
#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

#theme-toggle:hover {
    background-color: var(--primary-glow);
}

.theme-toggle-inner {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle-inner i {
    position: absolute;
    font-size: 1.15rem;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
}

/* Light theme: show moon, hide sun */
[data-theme="light"] .sun-icon {
    transform: rotate(90deg) scale(0);
    opacity: 0;
}

[data-theme="light"] .moon-icon {
    transform: rotate(0deg) scale(1);
    opacity: 1;
    color: var(--primary-color);
}

/* Dark theme: show sun, hide moon */
[data-theme="dark"] .sun-icon {
    transform: rotate(0deg) scale(1);
    opacity: 1;
    color: var(--primary-color);
}

[data-theme="dark"] .moon-icon {
    transform: rotate(-90deg) scale(0);
    opacity: 0;
}

section {
    padding: 5.5rem 2.5rem 4rem 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 2.5rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background-color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    background-color: var(--primary-color);
    color: #ffffff !important;
    border-radius: 30px;
    transition: var(--transition);
    font-weight: 600;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-outline {
    background-color: transparent !important;
    border: 2px solid var(--primary-color);
    color: var(--primary-color) !important;
    box-shadow: none;
}

.btn-outline:hover {
    background-color: var(--primary-color) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 20px var(--primary-glow);
}

.resume-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 0;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cv-lang-selector {
    display: inline-flex;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px;
    gap: 2px;
    box-shadow: var(--shadow);
}

.cv-lang-btn {
    background: none;
    border: none;
    outline: none;
    color: var(--gray-text);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--transition);
}

.cv-lang-btn:hover {
    color: var(--light-text);
}

.cv-lang-btn.active {
    background-color: var(--primary-color);
    color: #ffffff;
}

.cv-lang-btn .flag-icon {
    font-size: 1.1rem;
}


.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
}

.hero-content {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 2.5rem;
}

.hero-intro {
    width: 100%;
    text-align: center;
}

.hero-intro h1 {
    font-size: 3.2rem;
    margin-bottom: 0.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
}

.hero-intro h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.hero-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2.5rem;
    width: 100%;
}

.hero-description {
    flex: 1.2;
    margin-top: 0;
}

.hero-bottom-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-top: 0.5rem;
}

.hero-bottom-actions .social-links {
    justify-content: center;
    margin-bottom: 1.5rem;
}

.hero-bottom-actions .btn {
    align-self: center;
    padding: 0.6rem 1.4rem;
    font-size: 0.9rem;
}

.hero-description p {
    margin-bottom: 0;
    color: var(--gray-text);
    font-size: 1.05rem;
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 2.2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--card-bg);
    color: var(--light-text);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
    font-size: 1.1rem;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px -6px var(--primary-glow);
}

.hero-image {
    flex: 0 0 250px;
    display: flex;
    justify-content: flex-start;
}

.hero-image img {
    width: 220px;
    height: 220px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px -15px var(--primary-glow), var(--shadow);
}

/* ==========================================
   RESUME SECTION (TWO COLUMNS LAYOUT)
   ========================================== */


.resume-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.resume-column-title {
    font-size: 1.4rem;
    font-weight: 850;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    letter-spacing: -0.3px;
    color: var(--light-text);
}

.resume-column-title i {
    color: var(--primary-color);
}

.resume-timeline {
    position: relative;
    border-left: 2px solid var(--border-color);
    padding-left: 1.8rem;
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.resume-item {
    position: relative;
    transition: var(--transition);
}

/* Timeline dot */
.resume-item::before {
    content: '';
    position: absolute;
    left: calc(-1.8rem - 7px);
    top: 6px;
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    border: 3.5px solid var(--dark-bg);
    transition: var(--transition);
    box-shadow: 0 0 0 1px var(--border-color);
}

.resume-item:hover::before {
    background-color: var(--light-text);
    transform: scale(1.3);
}

.resume-item .date {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background-color: var(--primary-glow);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 755;
    margin-bottom: 0.6rem;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
}

.resume-item-header {
    cursor: pointer;
    user-select: none;
}

.resume-item-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    letter-spacing: -0.2px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.resume-item-header h3 .toggle-icon {
    font-size: 0.85rem;
    color: var(--gray-text);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
}

.resume-item:hover .toggle-icon {
    color: var(--primary-color);
}

.resume-item.active .toggle-icon {
    transform: rotate(180deg);
    color: var(--primary-color);
}

.resume-collapse-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, margin-top 0.3s ease;
    margin-top: 0;
}

.resume-item.active .resume-collapse-content {
    max-height: 400px;
    opacity: 1;
    margin-top: 0.8rem;
}

.resume-item h4 {
    font-size: 0.92rem;
    color: var(--gray-text);
    font-weight: 500;
    margin-bottom: 0.6rem;
}

.resume-item p {
    font-size: 0.92rem;
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.8rem;
}

.skills li {
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    background-color: var(--darker-bg);
    color: var(--gray-text);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    font-weight: 500;
}

.projects-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.projects-actions {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: row;
    align-items: stretch;
    min-height: 280px;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px -15px var(--primary-glow), var(--shadow);
}

.project-img {
    overflow: hidden;
    position: relative;
    flex: 0 0 35%;
    border-right: 1px solid var(--border-color);
}

.project-img img {
    transition: var(--transition);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-img-light {
    display: none;
}

[data-theme="light"] .project-img-dark {
    display: none;
}

[data-theme="light"] .project-img-light {
    display: block;
}

.project-card:hover .project-img img {
    transform: scale(1.05);
}

.project-info {
    padding: 2.2rem 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-info h3 {
    margin-bottom: 0.4rem;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    margin-top: 0;
}

.project-date {
    font-size: 0.85rem;
    color: var(--gray-text);
    margin-bottom: 1rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.project-info p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech span {
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    background-color: var(--darker-bg);
    color: var(--gray-text);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-weight: 500;
    transition: var(--transition);
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}

/* PUBLICATIONS */

.publications {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.publications-actions {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    grid-column: 1 / -1;
}

.publications .section-title {
    grid-column: 1 / -1;
    margin-bottom: 1rem;
}

.publication-card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2.2rem 1.8rem;
    border: 1px solid var(--border-color);
    box-sizing: border-box;
    transition: var(--transition);
    display: flex;
    flex-direction: row;
    gap: 2rem;
    align-items: flex-start;
    min-width: 0;
}

.publication-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--primary-rgb), 0.3);
    box-shadow: 0 15px 30px -10px var(--primary-glow), var(--shadow);
}

/* Columna izquierda de metadatos (año/tipo) */
.publication-meta-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0.7rem;
    min-width: 100px;
    padding-right: 1.8rem;
    border-right: 1px solid var(--border-color);
}

.pub-year {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    letter-spacing: -0.5px;
}

.pub-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
}

.badge-journal {
    background-color: var(--primary-glow);
    color: var(--primary-color);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
}

.badge-conference {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Columna derecha (contenido) */
.publication-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.publication-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    letter-spacing: -0.3px;
    line-height: 1.45;
    margin-top: 0;
}

.publication-authors {
    color: var(--light-text);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.publication-venue {
    color: var(--gray-text);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* BOTONES DE ENLACE Y CITAR */
.publication-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: auto;
}

.pub-link-btn {
    font-size: 0.85rem;
    color: var(--gray-text) !important;
    background-color: var(--darker-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    text-decoration: none;
}

.pub-link-btn:hover,
.pub-link-btn.active {
    color: var(--primary-color) !important;
    border-color: var(--primary-color);
    background-color: var(--primary-glow);
    transform: translateY(-2px);
}

/* DROPDOWN DE CITACIÓN BIBTEX */
.citation-dropdown {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, padding 0.3s ease, margin-top 0.3s ease;
    background-color: var(--darker-bg);
    border: 1px solid transparent;
    border-radius: 12px;
    margin-top: 0;
    padding: 0 1rem;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.citation-dropdown.active {
    max-height: 250px;
    opacity: 1;
    border-color: var(--border-color);
    padding: 1.2rem 1.2rem;
    margin-top: 1.2rem;
}

.citation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--gray-text);
    margin-bottom: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.copy-cite-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    transition: var(--transition);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
}

.copy-cite-btn:hover {
    background-color: var(--primary-glow);
}

.citation-dropdown pre {
    margin: 0;
    max-width: 100%;
    box-sizing: border-box;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.75rem;
    overflow-x: auto;
    color: var(--light-text);
    background-color: var(--card-bg);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    line-height: 1.5;
}

footer {
    background-color: var(--darker-bg);
    padding: 3rem 2.5rem;
    border-top: 1px solid var(--border-color);
    transition: var(--transition);
}

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

footer .social-links {
    margin-bottom: 0;
}

footer p {
    color: var(--gray-text);
    font-size: 0.95rem;
    margin: 0;
}

@media (max-width: 992px) {
    .hero-content {
        text-align: center;
        gap: 2rem;
    }

    .hero-body {
        flex-direction: column-reverse;
        gap: 2.5rem;
        align-items: center;
    }

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

    .hero-description p {
        margin-left: auto;
        margin-right: auto;
    }

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

@media (max-width: 992px) {
    .project-card {
        flex-direction: column;
        min-height: auto;
    }

    .project-img {
        flex: 0 0 auto;
        width: 100%;
        height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .project-img img {
        height: 200px;
    }

    .project-info {
        padding: 1.8rem;
    }

    #navbar {
        padding: 1rem 1.5rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .hamburger-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--glass-bg-opaque);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        flex-direction: column;
        gap: 1.5rem;
        padding: 2rem 0;
        border-bottom: 1px solid var(--glass-border);
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .resume-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2.5rem;
    }

    .publication-card {
        flex-direction: column;
        gap: 1.2rem;
    }

    .publication-meta-left {
        flex-direction: row;
        align-items: center;
        width: 100%;
        padding-right: 0;
        padding-bottom: 0.8rem;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        justify-content: flex-start;
        gap: 1rem;
    }

    .pub-year {
        font-size: 1.5rem;
    }

    section {
        padding: 5rem 5% 3rem 5%;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-image img {
        width: 220px;
        height: 220px;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    section {
        padding-top: 2.5rem;
    }

    .resume-timeline {
        padding-left: 1.2rem;
    }

    .resume-item::before {
        left: calc(-1.2rem - 5px);
    }
}

/* ==========================================
   NUEVAS CARACTERÍSTICAS (ADVANCED PORTFOLIO)
   ========================================== */

/* 1. ANIMACIÓN SCROLL REVEAL */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 2. SKILLS DASHBOARD */


.skills-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.skills-category-card {
    flex: 0 0 calc(33.333% - 1.333rem);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.6rem 1.4rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skills-category-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px -10px var(--primary-glow), var(--shadow);
}

.skills-category-header {
    cursor: pointer;
}

.skills-category-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background-color: var(--primary-glow);
    color: var(--primary-color);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.8rem auto;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    transition: var(--transition);
}

.skills-category-card:hover .skills-category-icon {
    transform: scale(1.08) rotate(5deg);
    background-color: var(--primary-color);
    color: #ffffff;
}

.skills-category-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.skills-category-card h3 .toggle-icon {
    font-size: 0.8rem;
    color: var(--gray-text);
    margin-left: 0.5rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
}

.skills-category-card:hover .toggle-icon {
    color: var(--primary-color);
}

.skills-category-card.active .toggle-icon {
    transform: rotate(180deg);
    color: var(--primary-color);
}

.skills-collapse-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, margin-top 0.3s ease;
    margin-top: 0;
}

.skills-category-card.active .skills-collapse-content {
    max-height: 350px;
    opacity: 1;
    margin-top: 1.2rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.skills-list li {
    font-size: 0.75rem;
    padding: 0.35rem 0.8rem;
    background-color: var(--darker-bg);
    color: var(--gray-text);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    font-weight: 500;
}

/* 3. FILTRO DE PUBLICACIONES */
.filter-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0;
    grid-column: 1 / -1;
    /* Cubrir todo el ancho en el grid de publicaciones */
}

.filter-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--gray-text);
    padding: 0.6rem 1.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.filter-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

/* Transición suave para filtrado de publicaciones */
.publication-card {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease !important;
}

/* 4. SECCIÓN DE CONTACTO */


.contacto-subtitle {
    text-align: center;
    color: var(--gray-text);
    max-width: 600px;
    margin: -1.5rem auto 2.5rem auto;
    font-size: 1.05rem;
    line-height: 1.6;
}

.contacto-container {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.contacto-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.3px;
}

.contacto-info>p {
    color: var(--gray-text);
    margin-bottom: 2.2rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.contacto-details {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.contacto-detail-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.contacto-detail-item i {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: var(--primary-glow);
    color: var(--primary-color);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    flex-shrink: 0;
}

.contacto-detail-item span {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-text);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 0.2rem;
}

.contacto-detail-item p,
.contacto-detail-item a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--light-text);
    transition: var(--transition);
}

.contacto-detail-item a:hover {
    color: var(--primary-color);
}

/* Formulario */
.contacto-form-wrapper {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.contacto-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    background-color: var(--darker-bg);
    border: 1px solid var(--border-color);
    color: var(--light-text);
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-top: 0.5rem;
    padding: 0.9rem 2rem;
}

/* Responsividad para las nuevas secciones */
@media (max-width: 992px) {
    .skills-grid {
        max-width: 700px;
    }

    .skills-category-card {
        flex: 0 0 calc(50% - 1rem);
    }

    .contacto-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        max-width: 600px;
    }
}

@media (max-width: 600px) {
    .skills-grid {
        max-width: 400px;
    }

    .skills-category-card {
        flex: 0 0 100%;
    }

    .form-group-row {
        grid-template-columns: 1fr;
    }

    .contacto-form-wrapper {
        padding: 1.8rem;
    }
}

/* 5. BOTÓN FLOTANTE VOLVER ARRIBA */
#back-to-top {
    position: fixed;
    bottom: 2.2rem;
    right: 2.2rem;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #ffffff;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    cursor: pointer;
    box-shadow: 0 8px 20px -6px var(--primary-glow), var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    pointer-events: none;
    z-index: 99;
    font-size: 0.95rem;
}

#back-to-top.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

#back-to-top:hover {
    background-color: var(--light-text);
    color: var(--dark-bg);
    transform: translateY(-3px) scale(1.05);
}

/* 6. HERO MINI STATS */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 0;
    margin-bottom: 1.2rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
    width: 100%;
    max-width: 600px;
}

.hero-stat-item {
    text-align: center;
}

.hero-stat-item .stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1.1;
    margin-bottom: 0.2rem;
}

.hero-stat-item .stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.3;
}


/* 7. PUBLICATIONS SEARCH BAR & CONTROLS */
.publications-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.search-toggle-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--gray-text);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.search-toggle-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--primary-glow);
}

.search-container.active .search-toggle-btn {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.search-input-wrapper {
    overflow: hidden;
    width: 0;
    opacity: 0;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
    display: flex;
    align-items: center;
    position: relative;
}

.search-container.active .search-input-wrapper {
    width: 280px;
    opacity: 1;
    margin-left: 0.5rem;
}

.search-input-wrapper input {
    width: 100%;
    padding: 0.6rem 2.2rem 0.6rem 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    color: var(--light-text);
    font-size: 0.85rem;
    font-family: inherit;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
}

#clear-search-btn {
    position: absolute;
    right: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-text);
    cursor: pointer;
    font-size: 0.85rem;
    display: none;
    padding: 0;
    transition: var(--transition);
}

#clear-search-btn:hover {
    color: var(--primary-color);
}


/* Responsividad para Estadísticas en Hero */
@media (max-width: 768px) {
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ==========================================
   PRINT STYLES (PDF OPTIMIZATION)
   ========================================== */
.print-only {
    display: none;
}

@media print {

    /* Esconder todo lo no relevante */
    header,
    footer,
    #home,
    #stats,
    #projects,
    #publications,
    #contacto,
    #back-to-top,
    .resume-actions,
    .section-title::after,
    .search-container,
    .reading-progress-container {
        display: none !important;
    }

    /* Configuración básica de página e impresión */
    html,
    body {
        background: #ffffff !important;
        color: #111111 !important;
        font-size: 10pt !important;
        width: 100% !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    main {
        width: 100% !important;
        padding: 0 !important;
    }

    section {
        padding: 0 !important;
        margin: 0 !important;
        max-width: 100% !important;
        opacity: 1 !important;
        transform: none !important;
    }

    .section-title {
        font-size: 16pt !important;
        margin-top: 1.5rem !important;
        margin-bottom: 1.5rem !important;
        text-align: left !important;
        padding-bottom: 0.2rem !important;
        border-bottom: 2px solid #e2e8f0;
    }

    /* Mostrar cabecera de impresión */
    .print-only.print-header {
        display: block !important;
        margin-top: 1rem;
        margin-bottom: 2rem;
        padding-bottom: 1rem;
        border-bottom: 2px solid #1a202c;
    }

    .print-header h1 {
        font-size: 24pt !important;
        font-weight: 800;
        color: #1a202c;
        margin-bottom: 0.5rem;
    }

    .print-contact {
        display: flex;
        flex-wrap: wrap;
        gap: 1.5rem;
        font-size: 10pt;
        color: #4a5568;
    }

    .print-contact span {
        display: flex;
        align-items: center;
        gap: 0.4rem;
    }

    /* Grilla de Resume a dos columnas en papel */
    .resume-grid {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 2.5rem !important;
        opacity: 1 !important;
    }

    .resume-column-title {
        font-size: 12pt !important;
        color: #1a202c;
        margin-bottom: 1.2rem !important;
        border-bottom: 1px solid #e2e8f0;
        padding-bottom: 0.3rem;
    }

    .resume-timeline {
        border-left: none !important;
        padding-left: 0 !important;
    }

    .resume-item {
        margin-bottom: 1.5rem !important;
        page-break-inside: avoid;
    }

    .resume-item::before {
        display: none !important;
    }

    .resume-item .date {
        position: static !important;
        display: inline-block;
        font-weight: 700;
        color: var(--primary-color);
        font-size: 9pt !important;
        margin-bottom: 0.3rem;
        background: none !important;
        padding: 0 !important;
        border: none !important;
    }

    .resume-collapse-content {
        max-height: none !important;
        opacity: 1 !important;
        overflow: visible !important;
        margin-top: 0.8rem !important;
    }

    .toggle-icon {
        display: none !important;
    }

    .resume-item h3 {
        font-size: 11pt !important;
        font-weight: 700;
        margin-bottom: 0.1rem;
    }

    .resume-item h4 {
        font-size: 10pt !important;
        color: #4a5568;
        margin-bottom: 0.5rem;
    }

    .resume-item p {
        font-size: 9pt !important;
        line-height: 1.5 !important;
        color: #2d3748 !important;
    }

    .resume-item ul.skills {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 0.4rem !important;
        margin-top: 0.5rem !important;
    }

    .resume-item ul.skills li {
        font-size: 8pt !important;
        background: #f7fafc !important;
        color: #4a5568 !important;
        border: 1px solid #e2e8f0 !important;
        padding: 0.15rem 0.5rem !important;
        border-radius: 4px !important;
    }

    /* Skills Dashboard en impresión */
    .skills-dashboard {
        page-break-inside: avoid;
        margin-top: 2rem !important;
    }

    .skills-grid {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 1.5rem !important;
        opacity: 1 !important;
    }

    .skills-category-card {
        padding: 1.2rem !important;
        background: #ffffff !important;
        border: 1px solid #e2e8f0 !important;
        box-shadow: none !important;
        text-align: left !important;
    }

    .skills-category-icon {
        display: none !important;
    }

    .skills-category-card h3 {
        font-size: 11pt !important;
        margin-bottom: 0.8rem !important;
        text-align: left !important;
        color: #1a202c;
    }

    .skills-category-card h3 .toggle-icon {
        display: none !important;
    }

    .skills-collapse-content {
        max-height: none !important;
        opacity: 1 !important;
        overflow: visible !important;
        margin-top: 0.8rem !important;
    }

    .skills-list {
        justify-content: flex-start !important;
        gap: 0.3rem !important;
    }

    .skills-list li {
        font-size: 8pt !important;
        background: #f7fafc !important;
        color: #2d3748 !important;
        border: 1px solid #e2e8f0 !important;
        padding: 0.15rem 0.4rem !important;
        border-radius: 4px !important;
    }
}