/* Shared portfolio redesign. Everything is scoped to keep the English exercise and legacy vendor pages safe. */
:root {
  --ink: #090a0c;
  --surface: #121317;
  --surface-2: #1b1d22;
  --paper: #f3f0e9;
  --muted: #b4b6bd;
  --line: rgba(243, 240, 233, .18);
  --red: #ef3e42;
  --red-soft: #ff6b64;
  --max: 1440px;
}

body.portfolio-site {
  background: var(--ink);
  color: var(--paper);
  font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif;
  min-width: 320px;
  overflow-x: hidden;
}

.portfolio-site *, .portfolio-site *::before, .portfolio-site *::after { box-sizing: border-box; }
.portfolio-site .custom-navmenu, .portfolio-site .custom-navbar, .portfolio-site > footer.footer { display: none !important; }
.portfolio-site #main { color: var(--paper); }
.portfolio-site #main .container, .portfolio-site #main .site-section, .portfolio-site #main .section { color: var(--paper); }
.portfolio-site a { color: inherit; }
.portfolio-site p { text-align: left; color: var(--muted); line-height: 1.62; }
.portfolio-site h1, .portfolio-site h2, .portfolio-site h3, .portfolio-site h4 { color: var(--paper); font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif; letter-spacing: -.035em; }
.portfolio-site .skip-link { position: fixed; z-index: 100; top: -4rem; left: 1rem; padding: .8rem 1rem; background: var(--red); color: var(--ink); font-weight: 700; }
.portfolio-site .skip-link:focus { top: 1rem; }
.portfolio-site .portfolio-nav { position: relative; z-index: 20; width: min(100% - 2rem, var(--max)); margin: 0 auto; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.portfolio-site .portfolio-nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.portfolio-site .portfolio-brand { font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 800; letter-spacing: -.04em; text-decoration: none; }
.portfolio-site .portfolio-brand::after { content: "/"; color: var(--red); margin-left: .35rem; }
.portfolio-site .portfolio-nav__links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.8rem); }
.portfolio-site .portfolio-nav__links a { color: var(--muted); font: 700 .72rem/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.portfolio-site .portfolio-nav__links a:hover, .portfolio-site .portfolio-nav__links a:focus-visible, .portfolio-site .portfolio-nav__links a[aria-current="page"] { color: var(--paper); }
.portfolio-site .portfolio-nav__links a[aria-current="page"]::before { content: "↳ "; color: var(--red); }
.portfolio-site .portfolio-nav__toggle { display: none; border: 1px solid var(--line); background: transparent; color: var(--paper); min-width: 44px; min-height: 44px; font: 700 .72rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .portfolio-nav__toggle:focus-visible, .portfolio-site a:focus-visible, .portfolio-site button:focus-visible { outline: 2px solid var(--red-soft); outline-offset: 4px; }
.portfolio-site .portfolio-main { width: min(100% - 2rem, var(--max)); margin: 0 auto; }
.portfolio-site .eyebrow, .portfolio-site .mono-label { color: var(--red-soft); font: 700 .82rem/1.4 SFMono-Regular, Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
.portfolio-site .home-intro { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; padding: clamp(1.5rem, 3vw, 2.75rem) 0 clamp(1.25rem, 2vw, 2rem); }
.portfolio-site .home-intro h1 { max-width: 16ch; margin: .35rem 0 0; font-size: clamp(2.2rem, 4vw, 4rem); line-height: .9; letter-spacing: -.055em; }
.portfolio-site .home-intro__copy { width: min(30rem, 100%); }
.portfolio-site .home-intro__copy p { max-width: 34rem; font-size: clamp(1rem, 1.5vw, 1.25rem); }
.portfolio-site .inline-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .7rem; }
.portfolio-site .button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .8rem 1rem; border: 1px solid var(--paper); color: var(--paper); font: 700 .72rem/1 SFMono-Regular, Consolas, monospace; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.portfolio-site .button:hover, .portfolio-site .button:focus-visible { border-color: var(--red); background: var(--red); color: var(--ink); }
.portfolio-site .button--primary { border-color: var(--red); background: var(--red); color: var(--ink); }
.portfolio-site .button--quiet { border-color: var(--line); color: var(--muted); }
.portfolio-site .selection { display: grid; grid-template-columns: minmax(18rem, .8fr) minmax(0, 1.2fr); gap: clamp(1rem, 4vw, 4rem); align-items: stretch; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1rem 0; }
.portfolio-site .selection__index { min-width: 0; max-height: 37rem; overflow: auto; scrollbar-color: var(--red) var(--surface); }
.portfolio-site .selection__row { display: grid; grid-template-columns: 2.4rem 1fr; gap: .85rem; align-items: baseline; width: 100%; padding: .85rem .7rem; border: 0; border-left: 2px solid transparent; background: transparent; color: var(--muted); cursor: pointer; text-align: left; }
.portfolio-site .selection__row:hover, .portfolio-site .selection__row:focus-visible, .portfolio-site .selection__row[aria-pressed="true"] { border-left-color: var(--red); color: var(--paper); background: linear-gradient(90deg, rgba(239, 62, 66, .13), transparent); }
.portfolio-site .selection__number { color: var(--red-soft); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .selection__title { font-size: clamp(1.1rem, 2.1vw, 2rem); font-weight: 800; letter-spacing: -.04em; }
.portfolio-site .selection__tech { grid-column: 2; color: var(--muted); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .selection__stage { position: relative; min-width: 0; min-height: 30rem; overflow: hidden; background: var(--surface); isolation: isolate; }
.portfolio-site .selection__stage::after { position: absolute; inset: 0; z-index: 1; content: ""; background: linear-gradient(90deg, rgba(9, 10, 12, .92), transparent 45%, rgba(9, 10, 12, .12)), linear-gradient(0deg, rgba(9, 10, 12, .8), transparent 55%); pointer-events: none; }
.portfolio-site .selection__media { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: opacity .25s ease, transform .35s ease; }
.portfolio-site .selection__stage:hover .selection__media { transform: scale(1.02); }
.portfolio-site .selection__overlay { position: absolute; inset: auto 1.25rem 1.25rem; z-index: 2; }
.portfolio-site .selection__overlay h2 { max-width: 11ch; margin: .5rem 0; font-size: clamp(2.5rem, 7vw, 6.6rem); line-height: .82; overflow-wrap: anywhere; }
.portfolio-site .selection__overlay p { max-width: 34rem; margin: 0 0 1rem; }
.portfolio-site .selection__meta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--muted); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .preview-controls { display: flex; gap: .45rem; }
.portfolio-site .icon-button { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; border: 1px solid var(--line); background: rgba(9,10,12,.55); color: var(--paper); cursor: pointer; }
.portfolio-site .icon-button[hidden] { display: none; }
.portfolio-site .icon-button:hover, .portfolio-site .icon-button:focus-visible { background: var(--red); color: var(--ink); }
.portfolio-site .catalog-section { padding: clamp(4rem, 9vw, 8rem) 0; }
.portfolio-site .catalog-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 1.5rem; }
.portfolio-site .catalog-heading h2 { margin: .4rem 0 0; font-size: clamp(2.6rem, 7vw, 6.8rem); line-height: .82; }
.portfolio-site .filters { display: flex; flex-wrap: wrap; gap: .5rem; }
.portfolio-site .filter-button { min-height: 44px; padding: .65rem .8rem; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; font: .78rem SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.portfolio-site .filter-button:hover, .portfolio-site .filter-button:focus-visible, .portfolio-site .filter-button[aria-pressed="true"] { border-color: var(--red); color: var(--paper); }
.portfolio-site .catalog-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.portfolio-site .catalog-card { position: relative; display: flex; min-height: 20rem; grid-column: span 4; flex-direction: column; justify-content: flex-end; overflow: hidden; background: var(--surface); text-decoration: none; }
.portfolio-site .catalog-card__image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .72; transition: transform .35s ease, opacity .25s ease; }
.portfolio-site .catalog-card::after { position: absolute; inset: 0; content: ""; background: linear-gradient(0deg, rgba(9,10,12,.98), rgba(9,10,12,.08) 78%); }
.portfolio-site .catalog-card:hover .catalog-card__image, .portfolio-site .catalog-card:focus-visible .catalog-card__image { opacity: .96; transform: scale(1.045); }
.portfolio-site .catalog-card__content { position: relative; z-index: 1; padding: 1rem; }
.portfolio-site .catalog-card__num { color: var(--red-soft); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .catalog-card h3 { margin: .35rem 0; font-size: clamp(1.5rem, 3vw, 2.8rem); line-height: .88; overflow-wrap: anywhere; }
.portfolio-site .catalog-card p { margin: 0; font: .68rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .catalog-card__route { display: inline-block; margin-top: .8rem; color: var(--paper); font: 700 .82rem SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.portfolio-site .portfolio-footer { width: min(100% - 2rem, var(--max)); margin: 0 auto; padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); }
.portfolio-site .portfolio-footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.portfolio-site .portfolio-footer__links { display: flex; flex-wrap: wrap; gap: 1rem; font: .68rem SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.portfolio-site .portfolio-footer a { text-decoration: none; }
.portfolio-site .portfolio-footer a:hover, .portfolio-site .portfolio-footer a:focus-visible { color: var(--paper); }

/* Detail, profile and contact templates. */
.portfolio-site .detail-hero { display: grid; grid-template-columns: minmax(0, .9fr) minmax(18rem, 1.1fr); gap: clamp(1.5rem, 5vw, 6rem); align-items: end; padding: clamp(4rem, 9vw, 8rem) 0 3rem; }
.portfolio-site .detail-hero h1 { margin: .5rem 0 1rem; max-width: 10ch; font-size: clamp(3.8rem, 10vw, 10rem); line-height: .8; overflow-wrap: anywhere; }
.portfolio-site .detail-hero__summary { max-width: 35rem; font-size: clamp(1rem, 1.5vw, 1.25rem); }
.portfolio-site .detail-hero__media { width: 100%; height: auto; max-height: 35rem; aspect-ratio: auto; object-fit: contain; background: var(--surface); border: 1px solid var(--line); }
.portfolio-site .detail-meta { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.2rem 0; color: var(--muted); font: .7rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .detail-meta span { padding: .45rem .55rem; border: 1px solid var(--line); }
.portfolio-site .detail-body { display: grid; grid-template-columns: minmax(12rem, .3fr) minmax(0, .7fr); gap: clamp(1.5rem, 6vw, 7rem); padding: 2rem 0 clamp(4rem, 10vw, 9rem); border-top: 1px solid var(--line); }
.portfolio-site .detail-body__aside { position: sticky; top: 1rem; align-self: start; }
.portfolio-site .detail-body__aside h2, .portfolio-site .chapter-index h2 { font-size: 1rem; letter-spacing: .02em; }
.portfolio-site .chapter-index { margin-top: 2rem; }
.portfolio-site .chapter-index a { display: block; padding: .38rem 0; color: var(--muted); font: .7rem SFMono-Regular, Consolas, monospace; text-decoration: none; }
.portfolio-site .chapter-index a:hover, .portfolio-site .chapter-index a:focus-visible { color: var(--red-soft); }
.portfolio-site .detail-copy { max-width: 50rem; }
.portfolio-site .detail-copy h2 { margin: 0 0 1.2rem; font-size: clamp(2.4rem, 5vw, 4.8rem); line-height: .86; }
.portfolio-site .detail-copy p { font-size: 1.02rem; }
.portfolio-site .contribution { margin: 2rem 0; padding: 1rem 1.1rem; border-left: 2px solid var(--red); background: var(--surface); }
.portfolio-site .contribution h3 { margin: 0 0 .65rem; font: 700 .75rem SFMono-Regular, Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.portfolio-site .contribution ul { margin: 0; padding-left: 1.1rem; color: var(--muted); line-height: 1.7; }
.portfolio-site .chapters { padding: clamp(3rem, 8vw, 7rem) 0; background: var(--surface); }
.portfolio-site .chapters > .portfolio-main > h2 { margin: 0 0 2rem; font-size: clamp(2.5rem, 6vw, 6rem); line-height: .82; }
.portfolio-site .chapter { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: clamp(1rem, 5vw, 5rem); align-items: center; padding: 3rem 0; border-top: 1px solid var(--line); }
.portfolio-site .chapter:nth-of-type(odd) .chapter__media { order: 2; }
.portfolio-site .chapter__media { position: relative; width: 100%; overflow: hidden; background: var(--ink); }
.portfolio-site .chapter__media img { display: block; width: 100%; height: auto; max-height: 34rem; object-fit: contain; }
.portfolio-site .chapter h3 { margin: 0 0 .7rem; font-size: clamp(1.8rem, 4vw, 3.8rem); line-height: .88; }
.portfolio-site .chapter p { max-width: 32rem; }
.portfolio-site .chapter__num { color: var(--red-soft); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .video-facade { margin-top: 3rem; padding: 1.2rem; border: 1px solid var(--line); background: var(--ink); }
.portfolio-site .video-facade iframe { width: 100%; aspect-ratio: 16 / 9; border: 0; }
.portfolio-site .detail-next { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding: 2rem 0 4rem; }
.portfolio-site .detail-next .button { max-width: 100%; overflow-wrap: anywhere; }
.portfolio-site .empty-state { padding: 8rem 0; text-align: center; }
.portfolio-site .editorial { padding: clamp(4rem, 10vw, 9rem) 0; }
.portfolio-site .editorial__grid { display: grid; grid-template-columns: minmax(12rem, .45fr) minmax(0, 1fr); gap: clamp(1.5rem, 7vw, 8rem); }
.portfolio-site .editorial h1 { margin: .4rem 0 1.5rem; font-size: clamp(3.5rem, 9vw, 9rem); line-height: .8; }
.portfolio-site .editorial h2 { margin-top: 3rem; font-size: clamp(1.8rem, 4vw, 3.8rem); }
.portfolio-site .editorial__image { width: 100%; max-height: 42rem; object-fit: cover; }
.portfolio-site .skill-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .6rem 2rem; padding: 0; list-style: none; }
.portfolio-site .skill-list li { padding: .75rem 0; border-bottom: 1px solid var(--line); color: var(--paper); font-size: 1.05rem; }
.portfolio-site .skill-list li::before { content: "↳ "; color: var(--red); }
.portfolio-site .skill-list li span { display: block; margin: .25rem 0 0 1.35rem; color: var(--muted); font: .82rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .hobby-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .6rem; margin: 1.2rem 0 2rem; }
.portfolio-site .hobby-grid figure { margin: 0; padding: .7rem; border: 1px solid var(--line); background: var(--surface); }
.portfolio-site .hobby-grid img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; margin-bottom: .6rem; }
.portfolio-site .hobby-grid figcaption { color: var(--paper); font: .8rem SFMono-Regular, Consolas, monospace; }
.portfolio-site .contact-grid { display: grid; grid-template-columns: minmax(0, .7fr) minmax(18rem, 1.3fr); gap: clamp(2rem, 8vw, 9rem); }
.portfolio-site .contact-list { margin: 2rem 0 0; padding: 0; list-style: none; }
.portfolio-site .contact-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.portfolio-site .contact-list strong { display: block; margin-bottom: .35rem; color: var(--red-soft); font: .7rem SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.portfolio-site .contact-list a { color: var(--paper); text-decoration: none; font-size: 1.15rem; }
.portfolio-site .contact-form { padding: clamp(1rem, 4vw, 3rem); background: var(--surface); }
.portfolio-site .contact-form label { display: block; margin: 0 0 .4rem; color: var(--paper); font: .7rem SFMono-Regular, Consolas, monospace; text-transform: uppercase; }
.portfolio-site .contact-form input, .portfolio-site .contact-form textarea { width: 100%; margin-bottom: 1.3rem; padding: .9rem; border: 1px solid var(--line); border-radius: 0; background: var(--ink); color: var(--paper); font: 1rem Arial, sans-serif; }
.portfolio-site .contact-form textarea { min-height: 12rem; resize: vertical; }
.portfolio-site .legacy-shell { padding: 3rem 0 6rem; }
.portfolio-site .legacy-shell h1 { font-size: clamp(3rem, 9vw, 8rem); line-height: .82; }
.portfolio-site .legacy-shell .legacy-content { max-width: 58rem; }

@media (max-width: 800px) {
  .portfolio-site .portfolio-nav__toggle { display: inline-flex; align-items: center; justify-content: center; }
  .portfolio-site .portfolio-nav__links { display: none; position: absolute; left: 0; right: 0; top: calc(100% + 1px); flex-direction: column; align-items: stretch; gap: 0; padding: .6rem 1rem 1rem; border: 1px solid var(--line); background: var(--surface); }
  .portfolio-site .portfolio-nav__links.is-open { display: flex; }
  .portfolio-site .portfolio-nav__links a { padding: .9rem .2rem; }
  .portfolio-site .home-intro, .portfolio-site .selection, .portfolio-site .detail-hero, .portfolio-site .detail-body, .portfolio-site .editorial__grid, .portfolio-site .contact-grid { grid-template-columns: 1fr; display: grid; }
  .portfolio-site .home-intro { align-items: start; }
  .portfolio-site .home-intro h1 { max-width: none; font-size: 32px; }
  .portfolio-site .selection__stage { min-height: 0; padding-top: 18rem; overflow: visible; grid-row: 1; }
  .portfolio-site .selection__overlay { position: relative; inset: auto; padding: 1rem; background: rgba(9, 10, 12, .82); }
  .portfolio-site .selection__index { max-height: none; grid-row: 2; }
  .portfolio-site .catalog-heading { align-items: start; flex-direction: column; }
  .portfolio-site .catalog-card { grid-column: span 6; min-height: 17rem; }
  .portfolio-site .detail-body__aside { position: static; }
  .portfolio-site .detail-next { justify-content: stretch; }
  .portfolio-site .detail-next .button { flex: 1 1 100%; }
  .portfolio-site .chapter, .portfolio-site .chapter:nth-of-type(odd) { grid-template-columns: 1fr; }
  .portfolio-site .chapter:nth-of-type(odd) .chapter__media { order: 0; }
  .portfolio-site .portfolio-footer__inner { align-items: start; flex-direction: column; }
}

@media (max-width: 480px) {
  .portfolio-site .portfolio-main, .portfolio-site .portfolio-nav, .portfolio-site .portfolio-footer { width: min(100% - 1.25rem, var(--max)); }
  .portfolio-site .selection__stage { min-height: 0; padding-top: 13rem; }
  .portfolio-site .selection__overlay { padding: .8rem; }
  .portfolio-site .selection__overlay h2 { font-size: clamp(2.4rem, 15vw, 4.5rem); }
  .portfolio-site .catalog-card { grid-column: span 12; }
  .portfolio-site .skill-list { grid-template-columns: 1fr; }
  .portfolio-site .hobby-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portfolio-site .detail-hero h1, .portfolio-site .editorial h1 { font-size: clamp(3.1rem, 17vw, 6rem); }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-site *, .portfolio-site *::before, .portfolio-site *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}