/* Alex Rivera, architecture portfolio. One stylesheet for every page.
   Type set A from the PDF layouts: Inter Tight (display), Inter (text), IBM Plex Mono (labels). */

:root {
  --paper: #fbfaf7;
  --ink: #121212;
  --soft: #64625d;
  --hair: #d9d6cf;
  --ph: #e9e6df;
  --display: "Inter Tight", "Helvetica Neue", Arial, system-ui, sans-serif;
  --text: "Inter", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --gutter: clamp(16px, 4.4vw, 64px);
  --max: 1440px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 var(--text);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
h1, h2, h3, p, dl, dd, figure { margin: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.label { font: 400 12px/1.5 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.soft { color: var(--soft); }

.skip { position: absolute; left: 8px; top: -60px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }
.skip:focus { top: 8px; }

/* ---------- header and footer ---------- */
.site-head .wrap {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  min-height: 72px; border-bottom: 1px solid var(--hair);
}
.site-name { font: 500 18px/1 var(--display); letter-spacing: -.01em; text-decoration: none; padding: 8px 0; }
.site-nav ul { display: flex; gap: clamp(14px, 3vw, 32px); list-style: none; margin: 0; padding: 0; }
.site-nav a { display: inline-block; padding: 10px 0; text-decoration: none; color: var(--soft); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { text-decoration: underline; }

.site-foot { margin-top: clamp(64px, 9vw, 128px); }
.site-foot .wrap {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px 24px;
  padding-top: 20px; padding-bottom: 32px; border-top: 1px solid var(--hair); color: var(--soft);
}
.site-foot a { padding: 6px 0; display: inline-block; }
.site-foot a[href^="mailto:"] { text-transform: none; letter-spacing: .04em; }

/* ---------- home ---------- */
.intro { padding: clamp(48px, 8vw, 104px) 0 clamp(40px, 6vw, 72px); }
.intro h1 { font: 300 clamp(52px, 9vw, 120px)/.94 var(--display); letter-spacing: -.03em; }
.intro p { margin-top: 20px; font-size: clamp(17px, 1.6vw, 20px); color: var(--soft); max-width: 46ch; }

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 24px; list-style: none; margin: 0; padding: 0; }
.tile a { display: block; text-decoration: none; }
.tile img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--ph); }
.tile .num { display: block; margin-top: 14px; }
.tile h2 { font: 400 clamp(22px, 2vw, 28px)/1.15 var(--display); letter-spacing: -.01em; margin-top: 4px; }
.tile a:hover h2 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.tile .label { color: var(--soft); margin-top: 6px; display: block; }

/* ---------- project page ---------- */
.project-head {
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; row-gap: 24px;
  padding: clamp(40px, 6vw, 72px) 0 clamp(28px, 3.5vw, 40px); align-items: end;
}
.project-head .title { grid-column: 1 / 8; }
.project-head h1 { font: 400 clamp(40px, 6vw, 80px)/1 var(--display); letter-spacing: -.025em; margin-top: 10px; }
.facts {
  grid-column: 8 / 13; display: grid; grid-template-columns: 7.5em 1fr; row-gap: 4px; column-gap: 12px;
  padding-top: 12px; border-top: 1px solid var(--hair);
}
.facts dt { color: var(--soft); }
.facts dd { color: var(--ink); }

figcaption { margin-top: 10px; font-size: 15px; line-height: 1.45; color: var(--soft); }
.hero img { width: 100%; background: var(--ph); }

.desc {
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px;
  padding: clamp(40px, 6vw, 80px) 0;
}
.desc p { grid-column: 5 / 12; font-size: clamp(17px, 1.45vw, 20px); line-height: 1.6; max-width: 66ch; }

.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(48px, 6vw, 80px) 24px; }
.gallery .full { grid-column: 1 / -1; }
.gallery img { width: 100%; background: var(--ph); }
.drawing img { background: #fff; border: 1px solid var(--hair); }
a.zoom { display: block; cursor: zoom-in; }

.next { margin-top: clamp(72px, 10vw, 136px); border-top: 1px solid var(--hair); padding-top: 20px; }
.next a { display: inline-block; text-decoration: none; margin-top: 8px; font: 400 clamp(32px, 5vw, 64px)/1.05 var(--display); letter-spacing: -.02em; }
.next a span { display: inline-block; transition: transform .2s; }
.next a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.next a:hover span { transform: translateX(6px); }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; padding-top: clamp(40px, 6vw, 72px); }
.about h1 { grid-column: 1 / -1; }
.statement { grid-column: 1 / 10; margin-top: 20px; font: 300 clamp(26px, 3.2vw, 42px)/1.25 var(--display); letter-spacing: -.015em; max-width: 30em; }
.about section { grid-column: 1 / -1; margin-top: clamp(56px, 7vw, 96px); }
.about h2 { padding-bottom: 12px; border-bottom: 1px solid var(--hair); }
.resume { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; }
.resume dt, .resume dd { padding: 16px 0; border-bottom: 1px solid var(--hair); }
.resume dt { grid-column: 1 / 4; color: var(--soft); }
.resume dd { grid-column: 4 / 13; font-size: 17px; }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--hair); }
.contact-list .label { grid-column: 1 / 4; color: var(--soft); }
.contact-list a { grid-column: 4 / 13; font-size: 17px; justify-self: start; }

/* ---------- 404 ---------- */
.notfound { padding-top: clamp(64px, 12vw, 160px); padding-bottom: clamp(32px, 6vw, 80px); }
.notfound h1 { font: 300 clamp(44px, 7vw, 88px)/1 var(--display); letter-spacing: -.025em; }
.notfound p { margin-top: 20px; font-size: 18px; }

/* ---------- drawing viewer (zoom.js) ---------- */
html:has(dialog.viewer[open]) { overflow: hidden; }
dialog.viewer {
  position: fixed; inset: 0; width: 100vw; height: 100dvh; max-width: none; max-height: none;
  margin: 0; padding: 0; border: 0; background: var(--paper); color: var(--ink); overflow: hidden;
}
dialog.viewer::backdrop { background: var(--paper); }
.viewer-stage {
  position: absolute; top: 68px; bottom: 52px; left: 0; right: 0; display: flex; align-items: center; justify-content: center;
  border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair);
  touch-action: none; cursor: zoom-in; overflow: hidden;
}
.viewer.is-zoomed .viewer-stage { cursor: grab; }
.viewer-stage img {
  max-width: calc(100% - 2 * var(--gutter)); max-height: calc(100% - 48px);
  background: #fff; border: 1px solid var(--hair); transform-origin: 50% 50%;
  user-select: none; -webkit-user-drag: none;
}
.viewer-bar { position: absolute; top: 12px; right: var(--gutter); display: flex; gap: 8px; }
.viewer-bar button {
  min-width: 44px; min-height: 44px; padding: 0 14px; border: 1px solid var(--ink); border-radius: 0;
  background: var(--paper); color: var(--ink); font: 400 13px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; cursor: pointer;
}
.viewer-bar button:hover { background: var(--ink); color: var(--paper); }
.viewer-cap { position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; height: 52px; margin: 0; display: flex; align-items: center; font-size: 15px; color: var(--soft); pointer-events: none; }

/* ---------- phones and small tablets: one column ---------- */
@media (max-width: 900px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .project-head .title, .facts { grid-column: 1 / -1; }
  .desc p { grid-column: 1 / -1; }
  .statement { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .tiles, .gallery { grid-template-columns: 1fr; }
  .gallery { row-gap: 40px; }
  .resume dt, .resume dd, .contact-list .label, .contact-list a { grid-column: 1 / -1; }
  .resume dt { padding-bottom: 0; border-bottom: 0; }
  .resume dd { padding-top: 6px; }
  .contact-list li { row-gap: 6px; }
  .site-foot .wrap { flex-direction: column; gap: 2px; }
  .site-name { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  .next a span { transition: none; }
}