/* site.css — one section at a time on one screen: the logo and six words at the top, the
 * section, a quiet footer. Nothing to scroll down on a laptop. Phones stack it and the
 * page scrolls, still one section at a time. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--fs-md)/var(--lh) var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--select); }
h1, h2, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 10; padding: var(--s2) var(--s3); background: var(--ink); color: var(--bg); }
.skip:focus { left: 8px; }

/* ---------- frame ---------- */
.top, .panes > .pane, .foot { width: 100%; max-width: var(--page); margin: 0 auto; padding-left: var(--s7); padding-right: var(--s7); }
@media (min-width: 900px) {
  body { height: 100vh; height: 100dvh; display: grid; grid-template-rows: var(--top-h) minmax(0, 1fr) var(--foot-h); overflow: hidden; }
  .panes { overflow-y: auto; overscroll-behavior: contain; }
}

.top { display: flex; align-items: center; justify-content: space-between; gap: var(--s6); }
.logo { display: inline-flex; color: var(--ink); }
.logo svg { height: 24px; width: auto; display: block; }
.nav { display: flex; gap: var(--s6); font-size: var(--fs-sm); }
.nav a { position: relative; color: var(--muted); padding: var(--s2) 0; transition: color var(--dur) var(--ease); }
.nav a:hover { color: var(--ink); }
.nav a[aria-current] { color: var(--ink); }
.nav a[aria-current]::after { content: ''; position: absolute; left: 50%; bottom: -2px; width: 5px; height: 5px; margin-left: -2.5px; border-radius: 50%; background: var(--ink); }

.foot { display: flex; align-items: center; justify-content: space-between; font-size: var(--fs-xs); color: var(--faint); }

/* ---------- sections ---------- */
.panes { outline: none; }
.pane { padding-top: var(--s7); padding-bottom: var(--s7); }
html.js .pane { display: none; }
html.js .pane.on { display: block; animation: fade 320ms var(--ease); }
html:not(.js) .pane { display: none; }
html:not(.js) .pane:target, html:not(.js) .panes:not(:has(.pane:target)) #about { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }

.pane h1 { font-size: var(--fs-xl); font-weight: 500; line-height: var(--lh-tight); letter-spacing: -0.02em; }
.pane h1[tabindex]:focus { outline: none; } /* focused on arrival, for screen readers */
.lede { margin-top: var(--s4); max-width: var(--measure); font-size: var(--fs-lg); line-height: 1.5; color: var(--muted); }

.btn { display: inline-flex; align-items: center; height: 44px; padding: 0 var(--s5); border: 1px solid var(--ink); border-radius: var(--radius); background: var(--ink); color: var(--bg); font: 500 var(--fs-sm)/1 var(--font); cursor: pointer; transition: opacity var(--dur) var(--ease); }
.btn:hover { opacity: 0.85; }
.link { font-size: var(--fs-sm); font-weight: 500; border-bottom: 1px solid var(--rule-strong); padding-bottom: 1px; transition: border-color var(--dur) var(--ease); }
.link:hover { border-color: var(--ink); }

/* ---------- about ---------- */
.home { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr); gap: var(--s7); align-items: center; min-height: 100%; }
html.js .home.on { display: grid; }
.pane h1.hero { font-size: var(--fs-hero); font-weight: 500; letter-spacing: -0.035em; line-height: 1.04; max-width: 14ch; }
.home .lede { margin-top: var(--s5); }
.vision { margin-top: var(--s5); max-width: var(--measure); color: var(--muted); }
.actions { margin-top: var(--s6); display: flex; align-items: center; gap: var(--s5); flex-wrap: wrap; }
.clients { margin-top: var(--s7); max-width: var(--measure); font-size: var(--fs-sm); color: var(--faint); }
.home-mark { justify-self: end; width: min(100%, 300px); color: var(--mark); }
.home-mark svg { width: 100%; height: auto; display: block; animation: turn 90s linear infinite; }
@keyframes turn { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .home-mark svg { animation: none; } }

/* ---------- services ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s6) var(--s7); margin-top: var(--s7); }
.item { border-top: 1px solid var(--rule); padding-top: var(--s4); }
.item h2 { font-size: var(--fs-md); font-weight: 600; margin-bottom: var(--s2); }
.item p { color: var(--muted); max-width: var(--measure); }

/* ---------- process: four steps on a line, a dot each ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s6); margin-top: var(--s7); }
.step { position: relative; padding-top: var(--s5); border-top: 1px solid var(--rule-strong); }
.step::before { content: ''; position: absolute; top: -6px; left: 0; width: 11px; height: 11px; border-radius: 50%; background: var(--ink); }
.step-n { font: 500 var(--fs-xs)/1 var(--mono); color: var(--faint); margin-bottom: var(--s3); }
.step h2 { font-size: var(--fs-md); font-weight: 600; }
.step-d { font-size: var(--fs-sm); color: var(--faint); margin-top: 2px; }
.step ul { margin-top: var(--s4); display: grid; gap: var(--s3); font-size: var(--fs-sm); color: var(--muted); line-height: 1.55; }

/* ---------- work: four photos to a row, the first project twice as wide. The photos
 * are in grey until pointed at; the project pages show them in colour. ---------- */
.projects { --gap: var(--s5); --ratio: 1.5; container-type: inline-size; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s6) var(--gap); margin-top: var(--s7); }
.projects .wide { grid-column: span 2; }
.projects a { display: flex; flex-direction: column; }
.projects img { display: block; width: 100%; height: calc((100cqw - 3 * var(--gap)) / 4 / var(--ratio)); object-fit: cover; margin-bottom: var(--s3); border-radius: 2px; background: var(--rule); filter: grayscale(1); transition: filter calc(var(--dur) * 2) var(--ease); }
.projects a:hover img, .projects a:focus-visible img { filter: none; }
@media (hover: none) { .projects img { filter: none; } }
.projects .s { font-size: var(--fs-xs); color: var(--faint); }
.projects .t { margin-top: 2px; font-weight: 500; line-height: 1.35; letter-spacing: -0.01em; }

.back { font-size: var(--fs-sm); color: var(--faint); margin-bottom: var(--s4); }
.back a { color: var(--muted); border-bottom: 1px solid var(--rule-strong); }
.back a:hover { color: var(--ink); border-color: var(--ink); }
.case .lede { color: var(--ink); }
/* the photo stands beside the title and summary, as tall as they are */
.case-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr); gap: var(--s7); }
.case-head + .case-body { margin-top: var(--s6); }
.case-photo { margin: 0; display: flex; flex-direction: column; }
.case-photo img { flex: 1 1 0; height: 0; min-height: 260px; width: 100%; object-fit: cover; border-radius: 2px; background: var(--rule); }
.case-photo figcaption { margin-top: var(--s2); font-size: var(--fs-xs); color: var(--faint); }
.case-photo figcaption a:hover { color: var(--muted); }
.case-body { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s7); margin-top: var(--s7); }
.case-body h2 { font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--s2); }
.case-body p { color: var(--muted); max-width: var(--measure); }
.stack { margin-top: var(--s6); font-size: var(--fs-sm); color: var(--faint); }
.case-nav { margin-top: var(--s6); display: flex; justify-content: space-between; gap: var(--s5); border-top: 1px solid var(--rule); padding-top: var(--s4); font-size: var(--fs-sm); }
.case-nav a { color: var(--muted); max-width: 45%; transition: color var(--dur) var(--ease); }
.case-nav a:hover { color: var(--ink); }
.case-nav .next { margin-left: auto; text-align: right; }

/* ---------- team ---------- */
.people { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s6); margin-top: var(--s7); }
.person { display: flex; flex-direction: column; align-items: flex-start; }
.initials { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--ink); font: 500 var(--fs-xs)/1 var(--mono); letter-spacing: 0.04em; margin-bottom: var(--s4); }
.person.placeholder .initials { border-style: dashed; border-color: var(--rule-strong); }
.person h2 { font-size: var(--fs-md); font-weight: 600; }
.person .role { font-size: var(--fs-sm); color: var(--faint); margin-top: 2px; }
.person .bio { font-size: var(--fs-sm); color: var(--muted); margin-top: var(--s3); line-height: 1.55; flex: 1; }
.person .link { margin-top: var(--s4); }
.person.placeholder h2, .person.placeholder .role, .person.placeholder .bio, .person.placeholder .link { color: var(--faint); }
.person.placeholder .link { border-color: var(--rule); }

/* ---------- contact ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--s8); margin-top: var(--s7); align-items: start; }
.details { display: grid; gap: var(--s5); }
.details dt { font-size: var(--fs-xs); color: var(--faint); margin-bottom: var(--s1); }
.details dd { font-size: var(--fs-md); }
.form { display: grid; gap: var(--s4); max-width: 560px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); }
.form label { display: grid; gap: 6px; font-size: var(--fs-xs); color: var(--muted); }
.form input, .form textarea { width: 100%; padding: 10px 0; border: 0; border-bottom: 1px solid var(--rule-strong); border-radius: 0; background: transparent; color: var(--ink); font: 400 var(--fs-md)/1.4 var(--font); transition: border-color var(--dur) var(--ease); }
.form textarea { resize: vertical; min-height: 96px; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--ink); }
.form ::placeholder { color: var(--faint); }
.form [aria-invalid="true"], .form [aria-invalid="true"]:focus { border-color: #B42318; }
.form-foot { display: flex; align-items: center; gap: var(--s4); flex-wrap: wrap; margin-top: var(--s2); }
.hint { font-size: var(--fs-xs); color: var(--faint); }
.hint.err { color: #B42318; }
@media (prefers-color-scheme: dark) {
  .form [aria-invalid="true"], .form [aria-invalid="true"]:focus { border-color: #F97066; }
  .hint.err { color: #F97066; }
}

/* ---------- mid widths ---------- */
@media (min-width: 900px) and (max-width: 1199px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: var(--s7); }
  .people { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home { grid-template-columns: minmax(0, 1fr) minmax(0, 0.45fr); }
}

/* ---------- short laptop screens: a little tighter ---------- */
@media (min-width: 900px) and (max-height: 820px) {
  :root { --top-h: 64px; }
  .pane { padding-top: var(--s6); padding-bottom: var(--s6); }
  .grid-2, .steps, .people, .case-body, .contact, .projects { margin-top: var(--s6); }
  .clients { margin-top: var(--s6); }
  .projects { --ratio: 1.8; row-gap: var(--s5); }
  .case-head + .case-body { margin-top: var(--s5); }
  .case-photo img { min-height: 210px; }
  .case-nav { margin-top: var(--s6); }
}

/* ---------- phones: stacked, the page scrolls ---------- */
@media (max-width: 899px) {
  .top, .panes > .pane, .foot { padding-left: var(--s5); padding-right: var(--s5); }
  .top { flex-direction: column; align-items: flex-start; gap: var(--s3); padding-top: var(--s5); position: sticky; top: 0; z-index: 2; background: var(--bg); border-bottom: 1px solid var(--rule); padding-bottom: 0; }
  .nav { width: 100%; justify-content: space-between; gap: var(--s2); padding-bottom: var(--s2); font-size: 0.8125rem; }
  .nav a { white-space: nowrap; }
  .pane { scroll-margin-top: 120px; }
  .nav a[href="#about"] { display: none; } /* the logo goes home */
  .home, html.js .home.on { display: block; }
  .home-mark { display: none; }
  .grid-2, .steps, .people, .case-body, .contact { grid-template-columns: minmax(0, 1fr); gap: var(--s6); }
  .projects { grid-template-columns: minmax(0, 1fr); gap: 0; border-top: 1px solid var(--rule); }
  .projects .wide { grid-column: auto; }
  .projects a { display: grid; grid-template-columns: 104px minmax(0, 1fr); grid-template-rows: auto auto; align-content: center; column-gap: var(--s4); padding: var(--s3) 0; border-bottom: 1px solid var(--rule); }
  .projects img { grid-row: 1 / span 2; width: 104px; height: 70px; margin: 0; }
  .projects .s { align-self: end; }
  .projects .t { align-self: start; }
  .case-head { display: block; }
  .case-photo { margin-top: var(--s5); }
  .case-photo img { flex: none; height: auto; min-height: 0; aspect-ratio: 3 / 2; }
  .form .row { grid-template-columns: minmax(0, 1fr); }
  .foot { padding-top: var(--s5); padding-bottom: var(--s5); }
}

@media print {
  body { height: auto; overflow: visible; display: block; }
  .nav, .foot, .actions, .form, .home-mark { display: none !important; }
  html.js .pane, html:not(.js) .pane { display: block !important; page-break-after: always; }
}

/* the shortest laptop screens (720 px): project pages a touch tighter still */
@media (min-width: 900px) and (max-height: 740px) {
  .case .lede { font-size: var(--fs-md); }
  .projects { --ratio: 2.2; }
  .case-photo img { min-height: 160px; }
  .case-head + .case-body { margin-top: var(--s4); }
  .stack { margin-top: var(--s4); }
  .case-nav { margin-top: var(--s5); }
}