/* ============================================================
   Isabel Velásquez — Portafolio
   Registro: monografía técnica. Papel crema, tinta, nogal y champaña.
   ============================================================ */

:root {
  --paper: #F7F4EE;
  --paper-2: #EEE8DC;
  --paper-3: #E6DFD1;
  --ink: #1B1816;
  --ink-2: #4A443F;
  --muted: #7A7369;
  --line: #D8D0C3;
  --line-strong: #B9AE9C;
  --walnut: #6B4A33;
  --champagne: #8F5A0C;
  --champagne-soft: #C9A66B;
  --carbon: #151210;
  --carbon-2: #221D19;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Manrope", "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --max: 1480px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-feature-settings: "tnum" 1, "ss01" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Grano de papel, muy sutil */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: .045;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: multiply;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, dl, dd, dt, ul, ol, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
b { font-weight: 600; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: .5rem 1rem;
}
.skip:focus { left: 1rem; top: 1rem; }

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

.overline {
  font-size: .75rem; letter-spacing: .18em; text-transform: uppercase;
  font-weight: 600; color: var(--walnut);
}

/* ------------------------------------------------------------
   Navegación
   ------------------------------------------------------------ */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1.5rem;
  padding: .9rem var(--gutter);
  background: rgba(247, 244, 238, .88);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-brand { display: flex; flex-direction: column; line-height: 1.15; }
.nav-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 500; letter-spacing: -.005em; }
.nav-role { font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-top: .15rem; }
.nav-links { display: flex; gap: clamp(1rem, 2.5vw, 2.25rem); font-size: .875rem; font-weight: 500; }
.nav-links a { position: relative; padding: .25rem 0; color: var(--ink-2); transition: color .25s; }
.nav-links a small { font-family: var(--serif); font-size: .7rem; color: var(--champagne); margin-right: .4rem; font-weight: 500; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.nav-links a:hover, .nav-links a.activo { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.activo::after { transform: scaleX(1); }
.nav-cv {
  justify-self: end; font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--ink); padding: .6rem 1rem; transition: background .3s, color .3s;
}
.nav-cv:hover { background: var(--ink); color: var(--paper); }
@media (max-width: 860px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
}

/* ------------------------------------------------------------
   Portada
   ------------------------------------------------------------ */
.hero {
  position: relative; z-index: 1;
  overflow: hidden;                 /* contiene el resplandor decorativo */
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  padding: clamp(3rem, 8vh, 6rem) 0 clamp(2.5rem, 6vh, 5rem) var(--gutter);
  max-width: calc(var(--max) + var(--gutter)); margin: 0 auto;
}
.hero::before {
  content: ""; position: absolute; z-index: -1; inset: -20% -10% auto auto; width: 60vw; height: 60vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(201,166,107,.22), rgba(201,166,107,0));
  pointer-events: none;
}
.hero-text { padding-bottom: clamp(0rem, 3vw, 2.5rem); }
.hero-name {
  font-family: var(--serif); font-weight: 300; font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(3.6rem, 10.5vw, 9.8rem); line-height: .9; letter-spacing: -.025em;
  margin: 1.25rem 0 1.75rem; color: var(--ink);
}
.hero-name span { display: block; }
.hero-name span:last-child { padding-left: .28em; font-style: italic; font-weight: 300; }
.hero-statement {
  font-family: var(--serif); font-weight: 400; font-variation-settings: "opsz" 24;
  font-size: clamp(1.15rem, 1.7vw, 1.5rem); line-height: 1.4; max-width: 30ch; color: var(--ink-2);
  text-wrap: pretty;
}
.hero-meta {
  display: grid; grid-template-columns: repeat(3, auto); gap: 1.5rem 2.25rem; margin-top: 2.25rem; padding-top: 1.25rem;
  border-top: 1px solid var(--line-strong); width: fit-content;
}
.hero-meta dt { font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.hero-meta dd { font-size: .95rem; font-weight: 500; margin-top: .2rem; }
.hero-figure { position: relative; margin: 0; }
.hero-figure img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; cursor: zoom-in; }
.hero-figure figcaption {
  display: flex; gap: 1rem; align-items: baseline;
  margin-top: .75rem; padding-right: var(--gutter);
  font-size: .8rem; color: var(--muted);
}
.hero-figure figcaption span { font-family: var(--serif); color: var(--champagne); font-size: .85rem; }

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); padding-right: var(--gutter); align-items: start; }
  .hero-figure figcaption { padding-right: 0; }
  .hero-meta { grid-template-columns: repeat(2, auto); }
}
@media (max-width: 480px) { .hero-meta { grid-template-columns: 1fr; gap: 1rem; } }

/* ------------------------------------------------------------
   Índice de láminas (tabla de contenido, con líneas de puntos)
   ------------------------------------------------------------ */
.indice {
  max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter) clamp(3rem, 8vh, 6rem);
}
.indice ol { margin-top: 1rem; border-top: 1px solid var(--ink); columns: 2; column-gap: 4rem; }
.indice li { break-inside: avoid; }
.indice a {
  display: flex; align-items: baseline; gap: .9rem; padding: .85rem 0; border-bottom: 1px solid var(--line);
  transition: color .25s;
}
.indice a:hover { color: var(--walnut); }
.i-num { font-family: var(--serif); color: var(--champagne); min-width: 1.6rem; font-size: .95rem; }
.i-title { font-family: var(--serif); font-size: clamp(1.05rem, 1.4vw, 1.25rem); font-weight: 400; }
.i-type { flex: 1; text-align: right; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); white-space: nowrap; font-weight: 600; }
.i-type::before { content: ""; display: inline-block; vertical-align: middle; width: 100%; max-width: 1px; }
@media (max-width: 760px) { .indice ol { columns: 1; } }

/* ------------------------------------------------------------
   Secciones
   ------------------------------------------------------------ */
.seccion {
  position: relative; z-index: 1;
  max-width: var(--max); margin: 0 auto; padding: clamp(3.5rem, 9vh, 7rem) var(--gutter);
  border-top: 1px solid var(--ink);
}
.seccion-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1rem clamp(2rem, 5vw, 5rem);
  align-items: baseline; margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
}
.seccion-num { font-family: var(--serif); font-size: clamp(1rem, 1.4vw, 1.2rem); color: var(--champagne); grid-column: 1; }
.seccion h2 {
  font-family: var(--serif); font-weight: 400; font-variation-settings: "opsz" 96;
  font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1; letter-spacing: -.02em; grid-column: 1;
}
.seccion-intro { grid-column: 2; grid-row: 1 / span 2; align-self: end; max-width: 52ch; color: var(--ink-2); font-size: 1.05rem; text-wrap: pretty; }
@media (max-width: 900px) {
  .seccion-head { grid-template-columns: 1fr; }
  .seccion-intro { grid-column: 1; grid-row: auto; margin-top: .5rem; }
}

/* ------------------------------------------------------------
   Láminas (proyectos)
   ------------------------------------------------------------ */
.lamina {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(1.5rem, 4vw, 4rem);
  padding: clamp(2rem, 5vh, 3.5rem) 0;
  border-top: 1px solid var(--line);
}
.lamina.alt { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.lamina.alt .ficha { order: 2; }
.lamina.alt .media { order: 1; }
.ficha { position: sticky; top: 5.5rem; align-self: start; }
.lamina-num { font-family: var(--serif); color: var(--champagne); font-size: .95rem; }
.lamina-num span { color: var(--muted); margin-left: .35rem; font-size: .8rem; }
.ficha h3 {
  font-family: var(--serif); font-weight: 500; font-variation-settings: "opsz" 72;
  font-size: clamp(1.6rem, 2.6vw, 2.3rem); line-height: 1.08; letter-spacing: -.015em; margin: .6rem 0 .5rem;
  text-wrap: balance;
}
.lamina-tipo { font-size: .8rem; color: var(--muted); font-weight: 500; }
.ficha dl { margin-top: 1.5rem; border-top: 1px solid var(--line-strong); }
.ficha dl div { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: .6rem 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.ficha dt { color: var(--muted); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600; padding-top: .15rem; }
.ficha dd { color: var(--ink); }
.lamina-desc { margin-top: 1.25rem; color: var(--ink-2); font-size: .98rem; max-width: 40ch; text-wrap: pretty; }

.media { display: grid; gap: clamp(.9rem, 1.6vw, 1.5rem); grid-template-columns: repeat(6, minmax(0, 1fr)); }
.media figure { grid-column: span 6; }
.media figure img {
  width: 100%; height: auto; cursor: zoom-in; outline: 1px solid rgba(27,24,22,.08); outline-offset: -1px;
  transition: transform .8s var(--ease), filter .5s;
}
.media figure:hover img { filter: brightness(1.02); }
.media figcaption {
  display: grid; grid-template-columns: auto 1fr; gap: .75rem; align-items: baseline;
  margin-top: .6rem; font-size: .8rem; color: var(--muted); line-height: 1.45;
}
.media figcaption::before {
  content: counter(fig, decimal-leading-zero); counter-increment: fig;
  font-family: var(--serif); color: var(--champagne); font-size: .8rem;
}
.media { counter-reset: fig; }
.media.dos figure { grid-column: span 3; }
.media.grid-obra figure.tall { grid-column: span 2; }
.media.grid-obra figure.wide { grid-column: span 6; }
.media.grid-marca figure.wide { grid-column: span 3; }
.media.grid-marca figure:not(.wide) { grid-column: span 2; }
.media figure.portrait { grid-column: 2 / span 4; }

@media (max-width: 900px) {
  .lamina, .lamina.alt { grid-template-columns: minmax(0, 1fr); }
  .lamina.alt .ficha { order: 1; }
  .lamina.alt .media { order: 2; }
  .ficha { position: static; }
  .lamina-desc { max-width: none; }
  .media figure.portrait { grid-column: span 6; }
}
@media (max-width: 600px) {
  .media.dos figure { grid-column: span 6; }
  .media.grid-obra figure.tall { grid-column: span 3; }
  .media.grid-marca figure.wide { grid-column: span 6; }
  .media.grid-marca figure:not(.wide) { grid-column: span 3; }
  .media.grid-marca figure:last-child { grid-column: span 6; }
  .ficha dl div { grid-template-columns: 6rem 1fr; }
}

/* ------------------------------------------------------------
   Perfil
   ------------------------------------------------------------ */
.perfil { background: var(--paper-2); max-width: none; }
.perfil > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.perfil-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.perfil-foto { position: relative; max-width: 420px; }
.perfil-foto img { width: 100%; aspect-ratio: 1; object-fit: cover; object-position: center 18%; filter: saturate(.9) contrast(1.02); }
.perfil-foto::after {
  content: ""; position: absolute; inset: 1rem -1rem -1rem 1rem; z-index: -1; border: 1px solid var(--line-strong);
}
.perfil-lead {
  font-family: var(--serif); font-weight: 400; font-variation-settings: "opsz" 36;
  font-size: clamp(1.35rem, 2.2vw, 1.9rem); line-height: 1.3; letter-spacing: -.01em; margin-bottom: 1.5rem; text-wrap: pretty;
}
.perfil-texto p + p { margin-top: 1rem; }
.perfil-texto > p:not(.perfil-lead) { color: var(--ink-2); max-width: 62ch; }
.competencias { margin-top: 2.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line-strong); }
.competencias h3 { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--walnut); font-weight: 600; margin-bottom: 1rem; }
.competencias ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .4rem 2.5rem; counter-reset: comp; }
.competencias li { display: grid; grid-template-columns: 1.6rem 1fr; gap: .5rem; padding: .45rem 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.competencias li::before { content: counter(comp, decimal-leading-zero); counter-increment: comp; font-family: var(--serif); color: var(--champagne); font-size: .85rem; padding-top: .1rem; }
@media (max-width: 900px) {
  .perfil-grid { grid-template-columns: 1fr; }
  .perfil-foto { max-width: 300px; }
}
@media (max-width: 600px) { .competencias ul { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------
   Trayectoria
   ------------------------------------------------------------ */
.timeline { border-top: 1px solid var(--ink); }
.timeline li {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1rem clamp(2rem, 5vw, 5rem);
  padding: clamp(1.5rem, 3vh, 2.25rem) 0; border-bottom: 1px solid var(--line);
}
.t-when { display: flex; flex-direction: column; gap: .35rem; }
.t-year { font-family: var(--serif); font-weight: 300; font-variation-settings: "opsz" 144; font-size: clamp(2.4rem, 4.5vw, 3.6rem); line-height: .95; letter-spacing: -.02em; color: var(--ink); }
.t-range { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.t-body h3 { font-family: var(--serif); font-weight: 500; font-size: clamp(1.25rem, 1.8vw, 1.55rem); line-height: 1.15; }
.t-role { color: var(--champagne); font-size: .85rem; font-weight: 600; margin: .35rem 0 .75rem; }
.t-body p:not(.t-role) { color: var(--ink-2); max-width: 62ch; font-size: .98rem; text-wrap: pretty; }
@media (max-width: 700px) {
  .timeline li { grid-template-columns: 1fr; gap: .5rem; }
  .t-when { flex-direction: row; align-items: baseline; gap: 1rem; }
}

/* ------------------------------------------------------------
   Formación y herramientas
   ------------------------------------------------------------ */
.formacion-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(2rem, 4vw, 4rem); }
.formacion .col h3 { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--walnut); font-weight: 600; padding-bottom: .75rem; border-bottom: 1px solid var(--ink); }
.formacion .col h3 + h3, .formacion .col ul + h3 { margin-top: 2.25rem; }
.lista-tec li { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--line); font-size: .92rem; line-height: 1.45; }
.l-when { font-family: var(--serif); color: var(--champagne); font-size: .88rem; padding-top: .1rem; }
.lista-tec b { display: inline; }
@media (max-width: 900px) { .formacion-grid { grid-template-columns: 1fr; gap: 2.5rem; } }

/* ------------------------------------------------------------
   Contacto
   ------------------------------------------------------------ */
.contacto { background: var(--carbon); color: var(--paper); max-width: none; border-top: 0; }
.contacto > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.contacto .seccion-num { color: var(--champagne-soft); }
.contacto-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.contacto-lead {
  font-family: var(--serif); font-weight: 300; font-variation-settings: "opsz" 96;
  font-size: clamp(1.8rem, 3.4vw, 3rem); line-height: 1.12; letter-spacing: -.015em; max-width: 18ch; text-wrap: pretty;
}
.contacto-lista { border-top: 1px solid rgba(247,244,238,.35); }
.contacto-lista li { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: .95rem 0; border-bottom: 1px solid rgba(247,244,238,.14); font-size: 1.02rem; }
.c-label { font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(247,244,238,.55); font-weight: 600; padding-top: .3rem; }
.contacto-lista a { color: var(--paper); border-bottom: 1px solid rgba(201,166,107,.45); transition: border-color .25s, color .25s; width: fit-content; }
.contacto-lista a:hover { color: var(--champagne-soft); border-color: var(--champagne-soft); }
.pie { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: clamp(3rem, 8vh, 6rem); padding-top: 1.25rem; border-top: 1px solid rgba(247,244,238,.14); font-size: .75rem; letter-spacing: .06em; color: rgba(247,244,238,.55); }
@media (max-width: 800px) { .contacto-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------
   Visor (lightbox)
   ------------------------------------------------------------ */
.visor {
  position: fixed; inset: 0; z-index: 50; display: grid; grid-template-columns: 4rem 1fr 4rem; align-items: center;
  background: rgba(21,18,16,.96); color: var(--paper);
  animation: visor-in .25s ease;
}
.visor[hidden] { display: none; }
@keyframes visor-in { from { opacity: 0; } to { opacity: 1; } }
.visor figure { grid-column: 2; display: grid; justify-items: center; gap: .9rem; padding: 2rem 0; max-height: 100vh; }
.visor img { max-width: 100%; max-height: 82vh; width: auto; height: auto; object-fit: contain; }
.visor figcaption { font-size: .85rem; color: rgba(247,244,238,.7); text-align: center; max-width: 60ch; }
.visor button {
  background: none; border: 0; color: var(--paper); font-family: var(--serif); font-size: 2.6rem; line-height: 1; cursor: pointer;
  padding: 1rem; opacity: .7; transition: opacity .2s;
}
.visor button:hover { opacity: 1; }
.visor-prev { grid-column: 1; justify-self: center; }
.visor-next { grid-column: 3; justify-self: center; }
.visor-cerrar { position: absolute; top: .5rem; right: .75rem; font-size: 2.2rem; }
@media (max-width: 700px) {
  .visor { grid-template-columns: 2.5rem 1fr 2.5rem; }
  .visor button { font-size: 2rem; padding: .5rem; }
  .visor figure { padding: 1rem 0; }
}

/* ------------------------------------------------------------
   Apariciones (solo con JS; respeta reduced-motion)
   ------------------------------------------------------------ */
.js .reveal, .js .fx { opacity: 0; transform: translateY(16px); transition: opacity .9s ease, transform .9s var(--ease); }
.js .reveal.in, .js .fx.in { opacity: 1; transform: none; }
.js .hero .reveal:nth-child(1) { transition-delay: .05s; }
.js .hero-name .reveal:nth-child(1) { transition-delay: .15s; }
.js .hero-name .reveal:nth-child(2) { transition-delay: .25s; }
.js .hero-statement { transition-delay: .4s; }
.js .hero-meta { transition-delay: .5s; }
.js .hero-figure { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .fx { opacity: 1; transform: none; transition: none; }
  .media figure img, .nav-links a::after { transition: none; }
}

/* Portada: línea de metadatos con barras + dateline */
.hero-slash { margin-top: 2rem; padding-top: 1.1rem; border-top: 1px solid var(--line-strong); max-width: 46ch; font-size: .86rem; line-height: 1.7; color: var(--ink-2); font-weight: 500; }
.hero-slash i, .lamina-tipo i { font-style: normal; color: var(--champagne); margin: 0 .35em; font-family: var(--serif); }
.hero-dateline { margin-top: .9rem; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.js .hero-slash { transition-delay: .5s; }
.js .hero-dateline { transition-delay: .6s; }

/* Última fila de dos fotos verticales en la grilla de obra */
.media.grid-obra figure.half { grid-column: span 3; }
@media (max-width: 600px) { .media.grid-obra figure.half { grid-column: span 3; } }
.media.uniforme figure.tall img { aspect-ratio: 4 / 5; object-fit: cover; }

/* Red de seguridad. Si el JavaScript no corre, o el navegador tiene las
   animaciones detenidas (visores dentro de otras apps, pestañas en segundo
   plano), el contenido aparece de golpe en vez de quedarse invisible.
   El "transition: none" es lo que importa: obliga a que el cambio sea
   inmediato y no dependa de que la animación avance. */
.sin-animacion .reveal, .sin-animacion .fx {
  opacity: 1 !important; transform: none !important; transition: none !important;
}