/* Variables de tema y medidas globales. */
:root {
    color-scheme: dark;
    --bg: #000;
    --bg-alt: #0a0a0a;
    --card-bg: rgba(255, 255, 255, 0.04);
    --card-hover: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(0, 0, 0, 0.85);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text: #fff;
    --text-sub: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);
    --accent: #73DB9D;
    --accent2: #008B85;
    --glow: rgba(115, 219, 157, 0.3);
    --glow-strong: rgba(115, 219, 157, 0.6);
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);

    --font: 'Outfit', system-ui, sans-serif;
    --nav-height: 72px;
    --container: 1100px;
    --container-wide: 1200px;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-nav: 0 4px 30px rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

[data-theme="light"] {
    color-scheme: light;
    --bg: #fafafa;
    --bg-alt: #f0f5f0;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-hover: rgba(255, 255, 255, 0.95);
    --nav-bg: rgba(250, 250, 250, 0.9);
    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.15);
    --text: #1a2e1a;
    --text-sub: rgba(26, 46, 26, 0.7);
    --text-muted: rgba(26, 46, 26, 0.4);
    --accent: #008B85;
    --accent2: #73DB9D;
    --glow: rgba(0, 139, 133, 0.2);
    --glow-strong: rgba(0, 139, 133, 0.4);
    --glass: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(0, 0, 0, 0.06);
}

/* Base: reset pequeno y protecciones contra overflow horizontal. */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--bg);
}

html.orientation-restoring,
html.orientation-restoring body {
    overflow-anchor: none;
}

html.orientation-restoring {
    scroll-behavior: auto !important;
}

body {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.6;
    letter-spacing: 0;
    transition: background-color 0.4s ease, color 0.4s ease;
}

main,
.navbar,
.footer {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    overflow-x: clip;
}

html.no-scroll,
body.no-scroll,
body.menu-open {
    overflow: hidden !important;
}

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

button {
    font: inherit;
}

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

::selection {
    background: var(--accent);
    color: #000;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.container {
    width: min(100% - 48px, var(--container));
    margin-inline: auto;
}

/* Scrollbars de página y modales. */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: linear-gradient(to bottom, var(--accent), var(--accent2));
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--accent2), var(--accent));
}

:is(#modalBody, #skillModalBody) {
    scrollbar-width: thin;
    scrollbar-color: var(--accent) transparent;
}

:is(#modalBody, #skillModalBody)::-webkit-scrollbar {
    width: 8px;
}

:is(#modalBody, #skillModalBody)::-webkit-scrollbar-track {
    background: transparent;
}

:is(#modalBody, #skillModalBody)::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: linear-gradient(to bottom, var(--accent), var(--accent2));
}

:is(#modalBody, #skillModalBody)::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--accent2), var(--accent));
}

/* Pantalla de carga. */
html.loading-splash,
body.loading-splash {
    position: fixed;
    inset: 0 auto auto 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden !important;
    touch-action: none;
    overscroll-behavior: none;
}

body.loading-splash::-webkit-scrollbar {
    display: none;
}

.splash-screen {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.splash-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
    animation: pulse 2s infinite ease-in-out;
}

.splash-icon {
    width: 64px;
    height: 64px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px var(--glow));
}

[data-theme="light"] .splash-icon {
    filter: invert(0.85) drop-shadow(0 0 10px var(--glow));
}

.splash-text,
.hero-name {
    background: linear-gradient(120deg, var(--text) 20%, var(--accent) 50%, var(--accent2) 80%, var(--text) 100%);
    background-clip: text;
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.splash-text {
    color: var(--text);
    font-size: 1.5rem;
    font-weight: 700;
    animation: textGradient 3s linear infinite;
}

.splash-loader {
    position: relative;
    width: 250px;
    max-width: 80%;
    height: 4px;
    overflow: hidden;
    border-radius: 2px;
    background: var(--border);
}

.splash-loader::after {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: loadingBar 1.5s infinite linear;
}

/* Navegación fija. */
.navbar {
    position: fixed;
    inset: 0 0 auto;
    z-index: 10000;
    border-bottom: 1px solid var(--border);
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-nav);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(100% - 48px, var(--container-wide));
    height: var(--nav-height);
    margin-inline: auto;
}

.nav-logo {
    font-size: 1.45rem;
    font-weight: 800;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    gap: 2px;
    list-style: none;
}

.nav-link {
    position: relative;
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-sub);
    font-size: 0.92rem;
    font-weight: 500;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: var(--card-bg);
    color: var(--text);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 18px;
    height: 2px;
    border-radius: 1px;
    background: var(--accent);
    transform: translateX(-50%);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-toggle,
.theme-toggle {
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-sub);
    cursor: pointer;
    transition: border-color var(--transition-base);
}

.lang-toggle:hover,
.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
}

.lang-label {
    opacity: 0.5;
    transition: none;
}

.lang-label.active-lang {
    opacity: 1;
    color: var(--accent);
}

.toggle-track {
    position: relative;
    width: 30px;
    height: 16px;
    border-radius: 8px;
    background: var(--text-muted);
    transition: background-color var(--transition-base);
}

.toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text);
    transition: transform var(--transition-base);
}

.lang-toggle.en .toggle-thumb {
    transform: translateX(14px);
}

.theme-toggle {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: var(--radius-md);
    font-size: 1.05rem;
}

.theme-toggle i {
    transition: none;
}

.hamburger {
    z-index: 100001;
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.hamburger span {
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--text);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero y partículas. */
.hero {
    position: relative;
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 100px 24px 60px;
}

.particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to top, transparent 0%, black 12%, black 88%, transparent 100%);
    mask-image: linear-gradient(to top, transparent 0%, black 12%, black 88%, transparent 100%);
}

.particles canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.22;
    filter: brightness(1.2) contrast(1.1);
    pointer-events: auto;
    transition: opacity var(--transition-base), filter var(--transition-base);
}

[data-theme="light"] .particles canvas {
    opacity: 0.15;
    filter: invert(0.85) brightness(0.8) contrast(1.2);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    text-align: center;
}

.avatar-wrapper {
    position: relative;
    display: inline-block;
    width: 180px;
    height: 180px;
    margin-bottom: 28px;
}

.avatar-ring,
.avatar,
.avatar-glow {
    position: absolute;
    border-radius: 50%;
}

.avatar-ring {
    inset: 0;
    z-index: 1;
    background: conic-gradient(var(--accent), var(--accent2), var(--accent));
    animation: spin 2.5s linear infinite;
}

.avatar {
    inset: 4px;
    z-index: 2;
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    transform: scale(1.65);
    transform-origin: top center;
}

.avatar-glow {
    inset: -20px;
    z-index: -1;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.hero-name {
    margin-bottom: 14px;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: 0;
    animation: textGradient 5s linear infinite;
}

.hero-subtitle {
    max-width: 540px;
    margin: 0 auto 32px;
    color: var(--text-sub);
    font-size: 1.05rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.scroll-down {
    position: absolute;
    bottom: 28px;
    left: 50%;
    z-index: 1;
    color: var(--text-muted);
    font-size: 1.1rem;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

/* Componentes compartidos. */
.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 20px;
}

.divider-line {
    width: 50px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.divider-icon,
.divider-icon-static {
    color: var(--accent);
    font-size: 0.85rem;
}

.divider-icon {
    animation: spin 8s linear infinite;
}

.section {
    position: relative;
    padding: 30px 0 70px;
}

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

.section-title {
    margin-bottom: 12px;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 0;
    text-align: center;
}

.grid {
    display: grid;
    gap: 20px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 340px));
    justify-content: center;
}

.card {
    position: relative;
    padding: 28px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: background-color var(--transition-base), border-color var(--transition-base),
        box-shadow var(--transition-base), transform var(--transition-base);
}

@media (hover: hover) {
    .card:hover {
        border-color: var(--accent);
        background: var(--card-hover);
        box-shadow: 0 10px 30px var(--glow);
        transform: translateY(-8px);
    }
}

.card h3 {
    margin-bottom: 6px;
    font-size: 1.1rem;
    font-weight: 700;
}

.card p {
    color: var(--text-sub);
    font-size: 0.9rem;
}

.card-icon {
    margin-bottom: 16px;
    color: var(--accent);
    font-size: 2.2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 26px;
    border: 0;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 600;
    transition: border-color var(--transition-base), box-shadow var(--transition-base),
        color var(--transition-base), transform var(--transition-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    box-shadow: 0 4px 20px var(--glow);
    color: #fff;
}

@media (hover: hover) {
    .btn-primary:hover {
        box-shadow: 0 8px 30px var(--glow-strong);
        transform: translateY(-2px);
    }
}

.btn-outline {
    border: 2px solid var(--border);
    background: transparent;
    color: var(--text);
}

@media (hover: hover) {
    .btn-outline:hover {
        border-color: var(--accent);
        color: var(--accent);
        transform: translateY(-2px);
    }
}

/* Sobre mi. */
.about-card {
    max-width: 750px;
    margin-inline: auto;
}

.about-card p {
    margin-bottom: 14px;
    color: var(--text-sub);
    font-size: 1.02rem;
    line-height: 1.8;
    text-align: center;
}

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

/* Formación. */
.edu-list {
    display: flex;
    max-width: 700px;
    flex-direction: column;
    gap: 20px;
    margin-inline: auto;
}

.edu-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    text-align: center;
}

.edu-badge {
    display: grid;
    flex: 0 0 52px;
    width: 52px;
    height: 52px;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
    font-size: 1.3rem;
}

.edu-info {
    flex: 1;
}

.edu-info h3 {
    margin-bottom: 3px;
    font-size: 1.05rem;
    font-weight: 700;
}

.edu-school {
    margin-bottom: 6px;
}

.edu-school a {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.edu-school a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.edu-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.edu-grade {
    color: var(--accent);
    font-weight: 600;
}

/* Proyectos. */
.projects-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: center;
}

.projects-grid>.project-card {
    flex: 1 1 280px;
    max-width: 340px;
}

.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    cursor: pointer;
}

.project-img,
.cert-img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    background: var(--bg-alt);
    object-fit: contain;
    transition: transform var(--transition-base);
}

.project-info {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 14px;
    text-align: center;
}

.project-info h3 {
    margin-bottom: 2px;
}

.project-info p {
    margin-bottom: 6px;
}

.project-info .cert-link {
    padding: 4px 0 0;
    text-align: center;
}

.project-stats {
    position: absolute;
    inset: 14px 14px auto;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
    pointer-events: auto;
}

.stat-badge[hidden] {
    display: none;
}

.stat-stars {
    margin-left: auto;
}

.stat-stars i {
    color: #fbbf24;
}

.stat-forks i {
    color: var(--accent);
}

/* Habilidades. */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(145px, 100%), 1fr));
    gap: 20px;
    max-width: 900px;
    margin-inline: auto;
}

.skills-grid .skill-card {
    display: flex;
    width: 100%;
    min-width: 0;
    min-height: 160px;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    margin: 0;
    padding: 24px 12px;
    text-align: center;
    word-break: break-word;
    cursor: pointer;
}

.skills-grid .skill-card .card-icon {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-bottom: 0;
}

.skills-grid .skill-card h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    min-height: 3em;
    margin-bottom: 0;
    overflow-wrap: break-word;
    line-height: 1.5;
    text-align: center;
}

@media (hover: hover) {
    .skills-grid .skill-card:hover {
        border-color: var(--accent);
        box-shadow: 0 10px 30px var(--glow);
        transform: translateY(-4px);
    }
}

.skill-item {
    display: flex;
    flex: 1 1 calc(20% - 10px);
    align-items: center;
    justify-content: center;
    min-width: 80px;
    max-width: calc(20% - 10px);
    padding: 20px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    background: var(--glass);
    text-align: center;
    transition: background-color var(--transition-base), border-color var(--transition-base),
        box-shadow var(--transition-base), transform var(--transition-base);
}

@media (hover: hover) {
    .skill-item:hover {
        border-color: var(--accent);
        background: var(--accent);
        box-shadow: 0 0 20px var(--glow);
        transform: translateY(-4px);
    }
}

.skill-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    transition: filter var(--transition-base), transform var(--transition-base);
}

.skill-icon--wordmark {
    width: min(132px, 100%);
}

[data-theme="light"] img.skill-icon {
    filter: invert(0.85);
}

.skill-item:hover .skill-icon,
[data-theme="light"] .skill-item:hover img.skill-icon {
    filter: brightness(0) invert(1);
}

.skill-item:hover .skill-icon {
    color: #fff;
    transform: scale(1.18);
}

/* Certificados. */
.cert-card {
    display: flex;
    height: 100%;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    text-align: center;
}

.cert-card h3 {
    padding: 16px 20px 4px;
    font-size: 1rem;
}

.cert-card p {
    padding-inline: 20px;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.cert-link {
    display: block;
    margin-top: auto;
    padding: 12px 20px 18px;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
}

/* Contacto. */
.contact-location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
    color: var(--text-sub);
    font-size: 0.95rem;
    text-align: center;
}

.contact-location i {
    color: var(--accent);
}

.contact-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    max-width: var(--container);
    margin-inline: auto;
}

.contact-item {
    flex: 1 1 0;
    min-width: 0;
    padding: 24px 8px;
    text-align: center;
}

.contact-icon {
    display: grid;
    width: 50px;
    height: 50px;
    place-items: center;
    margin: 0 auto 12px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--accent);
    font-size: 1.4rem;
    transition: background-color var(--transition-base), border-color var(--transition-base),
        box-shadow var(--transition-base), color var(--transition-base);
}

@media (hover: hover) {
    .contact-item:hover .contact-icon {
        border-color: var(--accent);
        background: var(--accent);
        box-shadow: 0 0 20px var(--glow);
        color: #fff;
    }
}

.contact-item h3 {
    margin-bottom: 4px;
    font-size: 0.9rem;
    font-weight: 700;
}

.contact-item p {
    overflow: hidden;
    color: var(--text-sub);
    font-size: 0.72rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Pie. */
.footer {
    border-top: 1px solid var(--border);
    background: var(--bg);
    padding: 28px 0;
    text-align: center;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* Modales. */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 20px;
    background: rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    backdrop-filter: blur(5px);
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    z-index: 1;
    display: flex;
    width: min(100%, 800px);
    max-width: 800px;
    max-height: 90vh;
    max-height: min(90vh, 90dvh);
    flex-direction: column;
    overflow: hidden;
    padding: 40px;
    text-align: center;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal-content::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: var(--modal-bg);
    background-position: top;
    background-size: cover;
    opacity: 0.15;
    pointer-events: none;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--text);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast),
        color var(--transition-fast), transform var(--transition-fast);
}

.modal-close:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
    transform: rotate(90deg);
}

#modalBody,
#skillModalBody {
    flex: 1;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    padding-right: 5px;
    scrollbar-gutter: stable;
}

#skillModalBody {
    overflow-x: clip;
}

.modal-body-title,
.skill-modal-title {
    font-size: 1.8rem;
    font-weight: 800;
    text-align: center;
}

.modal-body-title {
    margin-bottom: 12px;
    color: var(--accent);
}

.skill-modal-title {
    margin-bottom: 20px;
}

.modal-body-desc {
    margin-bottom: 24px;
    color: var(--text-sub);
    font-size: 1.05rem;
}

.modal-tech {
    margin-bottom: 24px;
}

.modal-tech h4 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.modal-tech-list,
.modal-skills-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.modal-tech-list {
    gap: 12px;
}

.modal-skills-row {
    width: 100%;
    gap: 10px;
    padding: 10px;
}

.modal-skills-row .skill-item {
    display: flex;
    flex: 0 0 64px;
    align-items: center;
    justify-content: center;
    max-width: 64px;
    min-width: 0;
    aspect-ratio: 1;
    margin: 0;
    padding: 10px;
}

.modal-skills-row .skill-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.modal-tech-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    font-size: 0.9rem;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.modal-tech-item:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.modal-tech-item img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    transition: filter var(--transition-base);
}

.modal-tech-item:hover img,
[data-theme="light"] .modal-tech-item:hover img {
    filter: brightness(0) invert(1);
}

[data-theme="light"] .modal-tech-item img {
    filter: invert(0.85);
}

.modal-actions {
    margin-top: 20px;
}

/* Animaciones de entrada y movimiento. */
.fade-up {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@keyframes loadingBar {
    0% {
        left: -50%;
    }

    100% {
        left: 100%;
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.5;
        transform: scale(1);
    }

    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

@keyframes textGradient {
    0% {
        background-position: 200% center;
    }

    50% {
        background-position: 100% center;
    }

    100% {
        background-position: 0% center;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Responsive. */
@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        right: 0;
        left: 0;
        z-index: 100000;
        display: none;
        height: calc(100vh - var(--nav-height));
        height: calc(100dvh - var(--nav-height));
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 20px;
        overflow-y: auto;
        padding: 40px;
        background: var(--bg);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-link {
        padding: 10px 20px;
        font-size: 1rem;
    }

    .hamburger {
        display: flex;
    }
}

@media (max-width: 900px) {
    .contact-item {
        padding: 20px 6px;
    }

    .contact-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .contact-item h3 {
        font-size: 0.82rem;
    }

    .contact-item p {
        font-size: 0.65rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 16px 50px;
    }

    .hero-name {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .avatar-wrapper {
        width: 130px;
        height: 130px;
    }

    .section {
        padding: 30px 0 70px;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .projects-grid>.project-card {
        max-width: 100%;
    }

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

    .btn {
        width: 100%;
        max-width: 260px;
    }

    .skills-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .skills-grid .skill-card {
        min-height: 172px;
    }

    .skills-grid .skill-card:nth-child(5) {
        grid-column: 1 / -1;
    }

    .skill-item {
        flex-basis: calc(33.33% - 8px);
        max-width: calc(33.33% - 8px);
        padding: 16px;
    }

    .contact-row {
        flex-wrap: wrap;
    }

    .contact-item {
        flex: 1 1 calc(50% - 8px);
        min-width: calc(50% - 8px);
        max-width: calc(50% - 8px);
    }

    .contact-item:last-child {
        flex-basis: 100%;
        min-width: 100%;
        max-width: 100%;
    }

    .contact-item p {
        font-size: 0.72rem;
    }

    .modal-overlay {
        padding: 12px;
    }

    .modal-content {
        width: 100%;
        max-width: calc(100vw - 24px);
        max-width: calc(100dvw - 24px);
        max-height: calc(100vh - 24px);
        max-height: calc(100dvh - 24px);
        padding: 48px 14px 16px;
    }

    .modal-close {
        top: 10px;
        right: 10px;
    }

    .modal-skills-row {
        gap: 12px;
        padding: 0;
    }

    .modal-skills-row .skill-item {
        flex-basis: calc((100% - 36px) / 4);
        max-width: calc((100% - 36px) / 4);
        padding: 10px;
    }

    .skill-modal-title,
    .modal-body-title {
        font-size: 1.45rem;
        line-height: 1.2;
    }

    .skill-modal-title {
        margin-bottom: 16px;
    }

    .modal-body-desc {
        font-size: 0.92rem;
    }

    .modal-tech-list {
        gap: 8px;
    }

    .modal-tech-item {
        max-width: 100%;
        min-width: 0;
        padding: 7px 10px;
        overflow-wrap: anywhere;
        font-size: 0.82rem;
    }
}

@media (orientation: landscape) and (max-height: 560px) {
    .modal-content {
        max-height: calc(100vh - 24px);
        max-height: calc(100dvh - 24px);
        padding: 48px 56px 16px;
    }

    .modal-close {
        top: 10px;
        right: 10px;
    }

    #modalBody,
    #skillModalBody {
        padding-right: 12px;
    }
}

@media (max-width: 400px) {
    :root {
        --nav-height: 64px;
    }

    .nav-container,
    .container {
        width: min(100% - 32px, var(--container));
    }

    .hero {
        padding: 70px 12px 40px;
    }

    .hero-name {
        font-size: 1.6rem;
    }

    .hero-subtitle {
        margin-bottom: 24px;
        font-size: 0.85rem;
    }

    .avatar-wrapper {
        width: 110px;
        height: 110px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .divider {
        margin-bottom: 30px;
    }

    .card {
        padding: 20px 16px;
    }

    .project-card {
        padding: 0;
    }

    .modal-content {
        padding: 48px 14px 16px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.82rem;
    }

    .edu-badge {
        flex-basis: 44px;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-lg);
        font-size: 1.1rem;
    }

    .skills-grid {
        gap: 12px;
    }

    .skills-grid .skill-card {
        min-height: 148px;
        padding: 18px 10px;
    }

    .skills-grid .skill-card h3 {
        font-size: 1rem;
        line-height: 1.45;
    }

    .skill-item {
        flex-basis: calc(50% - 6px);
        min-width: 0;
        max-width: calc(50% - 6px);
        padding: 14px;
    }

    .contact-item {
        flex: 1 1 calc(50% - 6px);
        min-width: calc(50% - 6px);
        max-width: calc(50% - 6px);
    }

    .contact-item:last-child {
        flex-basis: 100%;
        min-width: 100%;
        max-width: 100%;
    }

    .contact-icon {
        width: 42px;
        height: 42px;
        font-size: 1.2rem;
    }
}

/* Estados globales que deben ganar al hover normal. */
@media (hover: hover) {

    .about-card:hover,
    .edu-card:hover,
    .project-card:hover,
    .cert-card:hover,
    .contact-item:hover {
        transform: translateY(-4px);
    }
}

body.no-scroll .card:not(.modal-content) {
    border-color: var(--glass-border) !important;
    background: var(--glass) !important;
    box-shadow: none !important;
    transform: none !important;
    pointer-events: none !important;
}

body.particle-dragging * {
    pointer-events: none !important;
}

body.particle-dragging .particles canvas {
    pointer-events: auto !important;
}