/* =============================================================
   ESTILOS — Página personal de Víctor Cázares Lira
   ============================================================= */

:root {
    --color-bg: #f7f2ea;
    --color-bg-alt: #efe6da;
    --color-surface: #fbf8f3;
    --color-text: #211d1a;
    --color-text-soft: #5f554d;
    --color-accent: #7a3f26;
    --color-border: #d5c7b6;
    --color-border-strong: #b7a48f;
    --shadow-soft: 0 18px 40px rgba(33, 29, 26, 0.07);

    --font-serif: 'Cormorant Garamond', 'Georgia', serif;
    --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;

    --max-width: 1180px;
    --space-2xs: 0.4rem;
    --space-xs: 0.7rem;
    --space-sm: 1rem;
    --space-md: 1.6rem;
    --space-lg: 2.8rem;
    --space-xl: 4.5rem;
    --space-2xl: 6.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 17px;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--color-text);
    background:
        radial-gradient(circle at top right, rgba(122, 63, 38, 0.06), transparent 30%),
        linear-gradient(180deg, #fbf7f1 0%, var(--color-bg) 100%);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease, border-color 0.2s ease;
}

a:hover {
    opacity: 0.82;
}

ul {
    list-style: none;
}

[data-lang="en"] {
    display: inline;
}

[data-lang="es"] {
    display: none;
}

nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: rgba(247, 242, 234, 0.72);
    border-bottom: 1px solid rgba(213, 199, 182, 0.5);
    backdrop-filter: blur(12px);
    transition: background-color 0.25s ease, border-color 0.25s ease;
}

nav.scrolled {
    background: rgba(247, 242, 234, 0.95);
    border-bottom-color: var(--color-border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.78rem var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.nav-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.12rem;
    min-width: 0;
}

.nav-name {
    font-family: var(--font-serif);
    font-size: 1.08rem;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.015em;
    white-space: nowrap;
}

.nav-email {
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--color-text-soft);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.nav-links a {
    font-size: 0.76rem;
    font-weight: 500;
    color: var(--color-text-soft);
    text-transform: lowercase;
    letter-spacing: 0.08em;
    padding-bottom: 0.2rem;
    border-bottom: 1px solid transparent;
}

.nav-links a.nav-priority {
    display: inline-flex;
    align-items: center;
    gap: 0.32rem;
    color: var(--color-text-soft);
    background: none;
    border: none;
    border-bottom: 1px solid transparent;
    border-radius: 0;
    padding: 0 0 0.2rem;
}

.nav-priority-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    border-radius: 0;
    font-size: 0.58rem;
    line-height: 1;
    color: var(--color-accent);
    background: none;
    transform: translateY(-0.02rem);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-text);
    border-bottom-color: var(--color-border-strong);
    opacity: 1;
}

.nav-links a.nav-priority:hover,
.nav-links a.nav-priority.active {
    color: var(--color-text);
    border-bottom-color: var(--color-border-strong);
    background: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--color-text);
}

.lang-switch {
    background: transparent;
    border: 1px solid var(--color-border-strong);
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--color-text-soft);
    padding: 0.38rem 0.72rem;
    cursor: pointer;
}

.lang-switch:hover {
    color: var(--color-text);
    border-color: var(--color-accent);
}

.cover {
    padding: 6.5rem 0 2.5rem;
}

.cover-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: minmax(320px, 1.1fr) minmax(320px, 0.95fr);
    gap: 2.2rem;
    align-items: stretch;
}

.cover-image {
    height: 35rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.cover-image img {
    width: 100%;
    height: 100%;
    min-height: 0;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
}

.cover-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.2rem 0;
}

.cover-label,
.meta-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--color-accent);
}

.cover-label {
    margin-bottom: 0.8rem;
}

.cover h1 {
    font-family: var(--font-serif);
    font-size: clamp(2.75rem, 5vw, 4.6rem);
    font-weight: 400;
    line-height: 0.98;
    color: var(--color-text);
    margin-bottom: 0.55rem;
    max-width: 10ch;
}

.cover-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1.15rem, 2.2vw, 1.55rem);
    font-style: italic;
    color: var(--color-text-soft);
    margin-bottom: 1.15rem;
}

.cover-description,
.section-lead,
.meta-copy,
.about-text p,
.research-item p,
.blog-excerpt,
.pub-journal,
.detail-block ul li,
.detail-block p,
.contact-details p {
    font-size: 0.92rem;
    color: var(--color-text-soft);
}

.cover-description {
    max-width: 34rem;
    line-height: 1.82;
    margin-bottom: 1.15rem;
}

.cover-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.6rem;
}

.cover-link {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.cover-link-secondary {
    color: var(--color-text-soft);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    background: rgba(251, 248, 243, 0.8);
}

.cover-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.meta-block {
    padding-right: 0.5rem;
}

.meta-copy {
    margin-top: 0.35rem;
    line-height: 1.6;
}

.home-strip {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: rgba(251, 248, 243, 0.8);
}

.home-strip-inner {
    padding-top: 1rem;
    padding-bottom: 1rem;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.home-strip-text {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    line-height: 1.35;
}

.home-strip-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.4rem;
    justify-content: flex-end;
}

.home-strip-links a {
    font-size: 0.76rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.09em;
}

.publication-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.section-cta {
    margin-top: 1rem;
}

.section-cta a {
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section {
    padding: 3.8rem 0;
}

.section-alt {
    background: linear-gradient(180deg, rgba(239, 230, 218, 0.65) 0%, rgba(239, 230, 218, 0.9) 100%);
}

.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.page-top {
    padding-top: 7rem;
}

.page-header {
    max-width: 46rem;
    margin-bottom: 1.5rem;
}

.section h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.95rem, 3vw, 3rem);
    font-weight: 400;
    text-transform: lowercase;
    line-height: 1;
    padding-bottom: 0.7rem;
    margin-bottom: 1.3rem;
    border-bottom: 1px solid var(--color-border);
}

.section-lead {
    max-width: 46rem;
    margin-bottom: 1.65rem;
    line-height: 1.78;
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.55fr);
    gap: 2rem;
    align-items: start;
}

.about-portrait {
    position: sticky;
    top: 5.8rem;
}

.about-portrait img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: 0.7rem;
    box-shadow: var(--shadow-soft);
}

.about-lead {
    font-family: var(--font-serif);
    font-size: 1.65rem;
    line-height: 1.35;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.about-text p {
    margin-bottom: 0.9rem;
    line-height: 1.82;
}

.about-details {
    margin-top: 1.6rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
}

.trajectory-section {
    margin-top: 1.8rem;
}

.trajectory-section h3 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 0.9rem;
    color: var(--color-text);
}

.profile-blocks {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.profile-block {
    background: rgba(251, 248, 243, 0.82);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: 1rem;
}

.profile-block--wide {
    grid-column: 1 / -1;
}

.profile-entry {
    margin-top: 0.65rem;
    padding-top: 0.65rem;
    border-top: 1px solid rgba(213, 199, 182, 0.65);
}

.profile-entry:first-of-type {
    margin-top: 0.5rem;
}

.profile-entry-title {
    font-family: var(--font-serif);
    font-size: 1.08rem;
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.profile-entry p,
.profile-list li,
.profile-paragraph {
    font-size: 0.88rem;
    line-height: 1.72;
    color: var(--color-text-soft);
}

.profile-list {
    margin-top: 0.5rem;
}

.profile-list li {
    margin-bottom: 0.45rem;
}

.detail-block {
    padding-top: 0.85rem;
    border-top: 1px solid var(--color-border);
}

.detail-block h3,
.research-item h3,
.awards h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.55rem;
}

.detail-block ul li,
.detail-block p {
    line-height: 1.7;
    margin-bottom: 0.32rem;
}

.research-hero {
    margin-bottom: 1.4rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: 0.8rem;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.research-hero img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    object-position: center;
}

.research-content {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.4rem;
}

.research-item,
.blog-post,
.pub {
    background: rgba(251, 248, 243, 0.82);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.research-item {
    padding: 1.05rem 1rem 1rem;
}

.research-item p {
    line-height: 1.76;
    margin-bottom: 0.5rem;
}

.awards {
    display: grid;
    grid-template-columns: 0.42fr 1fr;
    gap: 1.4rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.awards ul {
    columns: 2;
    column-gap: 1.5rem;
}

.awards li {
    break-inside: avoid;
    font-size: 0.84rem;
    color: var(--color-text-soft);
    margin-bottom: 0.45rem;
    padding-left: 0.9rem;
    position: relative;
}

.awards li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.pub {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding: 1rem 1.05rem;
    margin-bottom: 0.9rem;
}

.pub-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.28;
    color: var(--color-text);
}

.pub-journal {
    line-height: 1.65;
}

.pub-doi a {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.blog-post {
    max-width: 52rem;
    padding: 1.25rem 1.2rem 1.1rem;
}

.blog-date {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.55rem;
    font-weight: 600;
}

.blog-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    font-style: italic;
    line-height: 1.18;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.blog-excerpt {
    line-height: 1.82;
    margin-bottom: 0.8rem;
}

.contact-shell {
    display: grid;
    grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.contact-note {
    padding-top: 0.2rem;
}

.contact-content {
    background: rgba(251, 248, 243, 0.82);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: 1.2rem;
    max-width: 42rem;
}

.contact-content > p {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    line-height: 1.34;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.contact-details p {
    margin-bottom: 0.35rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.45rem;
    height: 1.45rem;
    border: 1px solid var(--color-border-strong);
    border-radius: 999px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--color-accent);
    background: rgba(122, 63, 38, 0.04);
    flex-shrink: 0;
}

.contact-details a {
    font-weight: 500;
}

footer {
    border-top: 1px solid var(--color-border);
    background: rgba(251, 248, 243, 0.7);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.95rem var(--space-md);
}

footer p {
    font-size: 0.72rem;
    color: var(--color-text-soft);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@media (max-width: 980px) {
    .cover-grid,
    .about-grid,
    .contact-shell,
    .home-strip-inner,
    .awards {
        grid-template-columns: 1fr;
    }

    .cover h1 {
        max-width: none;
    }

    .cover-meta,
    .research-content,
    .about-details,
    .publication-preview-grid,
    .trajectory-grid,
    .profile-blocks {
        grid-template-columns: 1fr 1fr;
    }

    .home-strip-links {
        justify-content: flex-start;
    }

    .about-portrait {
        position: static;
        max-width: 24rem;
    }

    .awards ul {
        columns: 1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 16px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(247, 242, 234, 0.98);
        border-bottom: 1px solid var(--color-border);
        padding: 0.9rem var(--space-md) 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.9rem;
    }

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

    .cover {
        padding-top: 5.6rem;
    }

    .cover-image {
        height: 24rem;
    }

    .cover-image img {
        min-height: 0;
    }

    .cover-meta,
    .research-content,
    .about-details,
    .publication-preview-grid,
    .trajectory-grid,
    .profile-blocks {
        grid-template-columns: 1fr;
    }

    .nav-brand {
        min-width: 0;
    }

    .nav-name,
    .nav-email {
        white-space: normal;
    }

    .section {
        padding: 3rem 0;
    }

    .page-top {
        padding-top: 6rem;
    }

    .blog-title {
        font-size: 1.7rem;
    }
}

@media (max-width: 520px) {
    .nav-inner,
    .section-inner,
    .cover-grid,
    .footer-inner {
        padding-left: 0.9rem;
        padding-right: 0.9rem;
    }

    .cover-grid {
        gap: 1.2rem;
    }

    .cover h1 {
        font-size: 2.3rem;
    }

    .home-strip-text,
    .contact-content > p,
    .about-lead {
        font-size: 1.28rem;
    }
}