/* Portfolio style system: its own world, unrelated to the tin page (css/style.css).
   Concrete paper, graphite ink, one patina-green accent. Archivo (a grotesk with a width axis, set wide for display)
   carries the type; IBM Plex Mono carries labels, numbers and dates, like the schedule on a drawing set.
   Everything below reads from the --pf-* tokens; change a token, not a rule. */

:root {
  color-scheme: light dark;

  /* colour */
  --pf-paper: #eeeeea;        /* page */
  --pf-surface: #f8f8f5;      /* raised: inputs, cards */
  --pf-ink: #141414;          /* text, heavy rules */
  --pf-muted: #5c5c58;        /* secondary text (5.6:1 on paper) */
  --pf-rule: #cfcfc8;         /* hairlines */
  --pf-hatch: #c2c2ba;        /* poché hatch where an image is missing */
  --pf-accent: #1d6b57;       /* patina: hover, focus, links, drafts (5.3:1 on paper) */
  --pf-accent-ink: #ffffff;   /* text on accent */
  --pf-danger: #a3261b;

  /* type */
  --pf-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --pf-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --pf-wide: 116%;            /* font-stretch for display and titles */
  --pf-step--1: .78rem;       /* labels (mono, caps) */
  --pf-step-0: 1.0625rem;     /* body */
  --pf-step-1: clamp(1.125rem, 1.05rem + .35vw, 1.3rem);       /* lead */
  --pf-step-2: clamp(1.3rem, 1.12rem + .8vw, 1.75rem);         /* list titles */
  --pf-step-3: clamp(1.6rem, 1.25rem + 1.5vw, 2.4rem);         /* section headings */
  --pf-step-4: clamp(2.6rem, 1.4rem + 5.6vw, 6.75rem);         /* page titles */
  --pf-track-label: .07em;

  /* space (a 4px-based scale) */
  --pf-space-1: .25rem; --pf-space-2: .5rem; --pf-space-3: .75rem; --pf-space-4: 1rem;
  --pf-space-5: 1.5rem; --pf-space-6: 2rem;  --pf-space-7: 3rem;   --pf-space-8: 5rem; --pf-space-9: 8rem;
  --pf-gutter: clamp(16px, 4vw, 48px);
  --pf-max: 1320px;
  --pf-measure: 64ch;

  /* shape and motion */
  --pf-radius: 2px;
  --pf-focus: 2px solid var(--pf-accent);
  --pf-ease: cubic-bezier(.2, .7, .2, 1);
  --pf-fast: .18s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --pf-paper: #111211;
    --pf-surface: #1a1b1a;
    --pf-ink: #ebebe6;
    --pf-muted: #a2a29b;
    --pf-rule: #30312e;
    --pf-hatch: #34352f;
    --pf-accent: #6cc4a8;
    --pf-accent-ink: #0b1a15;
    --pf-danger: #ff8a7a;
  }
}

/* ─── base ─────────────────────────────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.pf {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--pf-paper); color: var(--pf-ink);
  font: 400 var(--pf-step-0)/1.6 var(--pf-sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
.pf a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
.pf a:hover { color: var(--pf-accent); }
.pf :focus-visible { outline: var(--pf-focus); outline-offset: 3px; border-radius: var(--pf-radius); }
.pf ::selection { background: var(--pf-accent); color: var(--pf-accent-ink); }
.pf img { max-width: 100%; display: block; }
.pf [hidden] { display: none !important; }
.pf-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.pf-wrap { width: 100%; max-width: var(--pf-max); margin-inline: auto; padding-inline: var(--pf-gutter); }
.pf-main { flex: 1; }

/* ─── type roles ───────────────────────────────────────────────────────────────────────────────────── */

.pf-label {
  margin: 0; font: 500 var(--pf-step--1)/1.4 var(--pf-mono);
  letter-spacing: var(--pf-track-label); text-transform: uppercase; color: var(--pf-muted);
}
.pf-display {
  margin: 0; font-size: var(--pf-step-4); font-weight: 700; font-stretch: var(--pf-wide);
  line-height: .94; letter-spacing: -.035em; text-wrap: balance; overflow-wrap: anywhere;
}
.pf-lead { margin: 0; max-width: 44ch; font-size: var(--pf-step-1); line-height: 1.45; color: var(--pf-muted); text-wrap: pretty; }
.pf-prose { max-width: var(--pf-measure); }
.pf-prose p { margin: 0 0 1em; text-wrap: pretty; }
.pf-prose p:last-child { margin-bottom: 0; }

.pf-tag {
  display: inline-block; vertical-align: middle; margin-left: var(--pf-space-2); padding: .15em .5em;
  font: 500 .68rem/1.3 var(--pf-mono); letter-spacing: var(--pf-track-label); text-transform: uppercase;
  color: var(--pf-accent); border: 1px solid currentColor; border-radius: var(--pf-radius);
}

/* ─── header and footer ────────────────────────────────────────────────────────────────────────────── */

.pf-top { border-bottom: 1px solid var(--pf-ink); }
.pf-top .pf-wrap { display: flex; align-items: baseline; justify-content: space-between; gap: var(--pf-space-4); padding-block: var(--pf-space-5); }
.pf-mark { font-weight: 700; font-stretch: var(--pf-wide); letter-spacing: -.01em; text-decoration: none; }
.pf-nav { display: flex; gap: var(--pf-space-5); }
.pf-nav a { font: 500 var(--pf-step--1)/1.4 var(--pf-mono); letter-spacing: var(--pf-track-label); text-transform: uppercase; text-decoration: none; }
.pf-nav a[aria-current="page"] { text-decoration: underline; }
@media (max-width: 520px) {
  .pf-top .pf-wrap { flex-direction: column; align-items: flex-start; gap: var(--pf-space-3); }
  .pf-nav { flex-wrap: wrap; gap: var(--pf-space-2) var(--pf-space-5); }
}

.pf-foot { margin-top: var(--pf-space-9); border-top: 1px solid var(--pf-ink); }
.pf-foot .pf-wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--pf-space-2) var(--pf-space-5); padding-block: var(--pf-space-5) var(--pf-space-7); }

/* ─── page intro ───────────────────────────────────────────────────────────────────────────────────── */

.pf-intro { display: grid; gap: var(--pf-space-5); padding-block: var(--pf-space-8) var(--pf-space-7); }

/* ─── status line: loading, empty, error ───────────────────────────────────────────────────────────── */

.pf-status { margin: 0; padding-block: var(--pf-space-7); color: var(--pf-muted); }
.pf-status a { color: var(--pf-ink); }

/* the intro waits (at most 1.5s) for the site text from the CMS, so an edited title never flashes the old one */
.pf-pending .pf-intro [data-text] { visibility: hidden; }

/* ─── category filter ──────────────────────────────────────────────────────────────────────────────── */

.pf-filter { display: flex; flex-wrap: wrap; gap: var(--pf-space-2); margin-bottom: var(--pf-space-6); }
.pf-chip {
  padding: .55rem .9rem; font: 500 var(--pf-step--1)/1 var(--pf-mono); letter-spacing: var(--pf-track-label); text-transform: uppercase;
  color: var(--pf-ink); background: none; border: 1px solid var(--pf-rule); border-radius: 999px; cursor: pointer;
  transition: border-color var(--pf-fast) var(--pf-ease), background var(--pf-fast) var(--pf-ease), color var(--pf-fast) var(--pf-ease);
}
.pf-chip:hover { border-color: var(--pf-ink); }
.pf-chip[aria-pressed="true"] { color: var(--pf-paper); background: var(--pf-ink); border-color: var(--pf-ink); }

/* ─── photography: a grid of covers ────────────────────────────────────────────────────────────────── */

.pf-grid {
  list-style: none; margin: 0; padding: 0; display: grid; gap: var(--pf-space-7) var(--pf-space-5);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
}
.pf-card__link { display: grid; gap: var(--pf-space-2); text-decoration: none; }
.pf-card__img { display: block; aspect-ratio: 1; overflow: hidden; margin-bottom: var(--pf-space-2); border-radius: var(--pf-radius); }
.pf-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--pf-ease); }
.pf-card__link:hover .pf-card__img img { transform: scale(1.025); }
.pf-card__title { font-size: var(--pf-step-1); font-weight: 650; font-stretch: var(--pf-wide); line-height: 1.2; letter-spacing: -.01em; }
.pf-card__link:hover .pf-card__title { color: var(--pf-accent); }
.pf-project--photo .pf-gallery { padding-top: var(--pf-space-6); }

/* ─── project index: a numbered schedule ───────────────────────────────────────────────────────────── */

.pf-index { list-style: none; margin: 0; padding: 0; }
.pf-index__head, .pf-row__link {
  display: grid; gap: 0 var(--pf-space-5); align-items: start;
  grid-template-columns: 3rem minmax(0, 1fr) minmax(7rem, 12rem) 5.5rem 8.5rem;
  grid-template-areas: "no main cat year thumb";
}
.pf-index__head { padding-block: var(--pf-space-3); border-bottom: 1px solid var(--pf-ink); }
.pf-index__head :nth-child(1) { grid-area: no; }
.pf-index__head :nth-child(2) { grid-area: main; }
.pf-index__head :nth-child(3) { grid-area: cat; }
.pf-index__head :nth-child(4) { grid-area: year; }

.pf-row { border-bottom: 1px solid var(--pf-rule); }
.pf-row__link { padding-block: var(--pf-space-5); text-decoration: none; }
.pf-row__no, .pf-row__cat, .pf-row__year {
  padding-top: .5em; font: 400 var(--pf-step--1)/1.4 var(--pf-mono); letter-spacing: .02em; color: var(--pf-muted);
}
.pf-row__no { grid-area: no; }
.pf-row__cat { grid-area: cat; }
.pf-row__year { grid-area: year; }
.pf-row__main { grid-area: main; min-width: 0; }
.pf-row__title {
  display: block; font-size: var(--pf-step-2); font-weight: 650; font-stretch: var(--pf-wide);
  line-height: 1.12; letter-spacing: -.015em; text-wrap: balance;
}
.pf-row__title::after {
  content: "→"; display: inline-block; margin-left: .4em; font-stretch: 100%;
  opacity: 0; transform: translateX(-.3em); transition: opacity var(--pf-fast) var(--pf-ease), transform var(--pf-fast) var(--pf-ease);
}
.pf-row__summary { display: block; max-width: 56ch; margin-top: var(--pf-space-2); color: var(--pf-muted); }
.pf-row__thumb { grid-area: thumb; aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--pf-radius); }
.pf-row__thumb img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); transition: filter .3s var(--pf-ease); }

.pf-row__link:hover { color: var(--pf-ink); }
.pf-row__link:hover .pf-row__title { color: var(--pf-accent); }
.pf-row__link:hover .pf-row__title::after, .pf-row__link:focus-visible .pf-row__title::after { opacity: 1; transform: none; }
.pf-row__link:hover .pf-row__thumb img { filter: none; }

/* poché: diagonal hatch standing in for a missing image */
.pf-hatch { background: repeating-linear-gradient(-45deg, var(--pf-hatch) 0 1px, transparent 1px 7px); }

@media (max-width: 760px) {
  .pf-index__head { display: none; }
  .pf-index { border-top: 1px solid var(--pf-ink); }
  .pf-row__link {
    grid-template-columns: 2.25rem minmax(0, 1fr) auto;
    grid-template-areas: "no main main" ". cat year";
    gap: var(--pf-space-2) var(--pf-space-3);
  }
  .pf-row__cat, .pf-row__year { padding-top: 0; }
  .pf-row__thumb { display: none; }
}

/* ─── project page ─────────────────────────────────────────────────────────────────────────────────── */

.pf-back { display: inline-block; margin-top: var(--pf-space-6); text-decoration: none; }
.pf-back:hover { color: var(--pf-accent); }
.pf-project__head { display: grid; gap: var(--pf-space-5); padding-block: var(--pf-space-7); border-bottom: 1px solid var(--pf-ink); }
.pf-cover { margin: var(--pf-space-6) 0 0; }
.pf-cover img { width: 100%; max-height: 82vh; object-fit: cover; border-radius: var(--pf-radius); }
.pf-cover figcaption { margin-top: var(--pf-space-3); }
.pf-cover img[width] { height: auto; }

/* gallery under the sections: landscape images full width, portrait ones two to a row */
.pf-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--pf-space-6) var(--pf-space-5); padding-block: var(--pf-space-7) 0; }
.pf-figure { margin: 0; }
.pf-figure--wide { grid-column: 1 / -1; }
.pf-figure img { width: 100%; height: auto; border-radius: var(--pf-radius); background: var(--pf-surface); }
.pf-caption { margin-top: var(--pf-space-3); max-width: var(--pf-measure); font-size: .9rem; color: var(--pf-muted); }
@media (max-width: 760px) { .pf-gallery { grid-template-columns: minmax(0, 1fr); } }

.pf-section {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--pf-space-4) var(--pf-space-7);
  padding-block: var(--pf-space-7); border-bottom: 1px solid var(--pf-rule);
}
.pf-section__head { align-self: start; position: sticky; top: var(--pf-space-5); }
.pf-section__head h2 {
  margin: var(--pf-space-2) 0 0; font-size: var(--pf-step-3); font-weight: 650; font-stretch: var(--pf-wide);
  line-height: 1.04; letter-spacing: -.025em; text-wrap: balance;
}
.pf-section--untitled .pf-prose { grid-column: 2; }

.pf-next { display: grid; gap: var(--pf-space-3); padding-block: var(--pf-space-8) 0; }
.pf-next a {
  justify-self: start; font-size: var(--pf-step-3); font-weight: 700; font-stretch: var(--pf-wide);
  line-height: 1.05; letter-spacing: -.025em; text-decoration: none;
}
.pf-next a::after { content: " →"; font-stretch: 100%; }

@media (max-width: 760px) {
  .pf-section { grid-template-columns: minmax(0, 1fr); padding-block: var(--pf-space-6); }
  .pf-section__head { position: static; }
  .pf-section--untitled .pf-prose { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .pf *, .pf *::before, .pf *::after { transition: none !important; }
}