/* Shared styles for case study pages */
:root {
  /* color tokens live in theme.css */
  --radius: 22px;
  --gap: 16px;
  --display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--display); margin: 0; line-height: 1.12; letter-spacing: -0.015em; text-wrap: balance; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.skip {
  position: absolute; left: 16px; top: -64px; z-index: 10;
  background: var(--solid-bg); color: var(--solid-fg); padding: 12px 18px; border-radius: 12px;
  font-weight: 600; text-decoration: none;
}
.skip:focus { top: 16px; }

/* header */
.site-header { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.site-header .logo img { height: 40px; width: auto; }
.site-header nav ul { display: flex; gap: 4px; }
.site-header nav a {
  display: inline-block; padding: 10px 16px; border-radius: 999px;
  text-decoration: none; font-weight: 500; transition: background .2s ease, transform .2s ease;
}
.site-header nav a:hover { background: var(--surface); transform: translateY(-2px); }

.back {
  display: inline-flex; align-items: center; gap: .5rem; margin: 4px 0 18px;
  font-weight: 600; text-decoration: none; padding: 8px 0;
}
.back svg { width: 16px; height: 16px; transition: transform .2s ease; }
.back:hover svg { transform: translateX(-4px); }
.back:hover { text-decoration: underline; text-underline-offset: 4px; }

/* bento grid */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); }
.s4 { grid-column: span 4; }
.s5 { grid-column: span 5; }
.s6 { grid-column: span 6; }
.s7 { grid-column: span 7; }
.s8 { grid-column: span 8; }
.s12 { grid-column: span 12; }

.tile {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}
.tile h2 { font-size: 1.6rem; margin-bottom: 18px; }
.tile h3 { font-size: 1.5rem; margin-bottom: 16px; }
.tile--night { background: var(--night-bg); border-color: var(--night-line); color: var(--night-ink); }
.tile--wine { background: var(--earth-red); border-color: var(--earth-red); color: var(--on-red); }
.tile--tint { background: var(--tint-bg); border-color: var(--tint-line); }

.stack { display: grid; gap: 14px; }
.stack > p + p { margin-top: 0; }

.section-head { margin: 56px 0 20px; }
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.3rem); font-weight: 800; }

/* hero */
.hero { padding: 44px; display: flex; flex-direction: column; justify-content: center; gap: 28px; }
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 3.6rem); font-weight: 800; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; }
.facts dt { font-size: .9rem; color: var(--muted); }
.facts dd { font-weight: 600; }
.hero-art { display: grid; place-items: center; padding: 24px; overflow: hidden; }
.hero-art img { width: 100%; max-width: 380px; animation: drift 7s ease-in-out infinite; }
@keyframes drift { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* lists */
.dots { display: grid; gap: 10px; }
.dots li { position: relative; padding-left: 1.4rem; }
.dots li::before {
  content: ""; position: absolute; left: .15rem; top: .72em; width: 7px; height: 7px;
  border-radius: 50%; background: var(--mark);
}
.tile--night .dots li::before { background: #E2BCBF; }

/* product area tiles */
.area { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.area__media { background: var(--chip); padding: 24px; display: grid; place-items: center; height: 320px; grid-template-rows: minmax(0, 1fr); grid-template-columns: minmax(0, 1fr); overflow: hidden; }
.area__media img { height: 100%; width: 100%; object-fit: contain; }
.area__body { padding: 28px 32px 32px; display: grid; gap: 14px; align-content: start; }
.area__body h3 { margin-bottom: 0; }
.area__body h4, .problem h4 { font-size: 1rem; font-weight: 700; font-family: var(--body); letter-spacing: 0; }

/* problem blocks */
.problem { display: grid; gap: 14px; align-content: start; }
.problem h3 { margin-bottom: 4px; }
.problem p.lead { color: var(--ink); }
.problem__group { display: grid; gap: 10px; }
.outcome { padding-top: 16px; border-top: 1px solid var(--line); font-weight: 500; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { padding: 9px 16px; border-radius: 999px; background: var(--rose-soft); color: var(--rose-ink); font-weight: 500; }

.media { display: grid; gap: 22px; align-content: center; background: var(--chip); border-color: var(--chip); padding: 24px; }
.shot { display: grid; gap: 10px; }
.shot img {
  width: 100%; border-radius: 12px;
  transition: transform .3s ease, filter .3s ease;
}
.shot:hover img { transform: translateY(-4px); filter: drop-shadow(0 12px 18px rgba(18, 22, 28, .18)); }
.shot figcaption { font-size: .95rem; color: var(--muted); }
.shot--framed img { border-radius: 0; }
.shot--small img { width: auto; max-width: 100%; margin: 0 auto; }

@media (min-width: 961px) {
  .flip .media { order: -1; }
}

/* photo hero tile and screenshot pairs */
.tile--photo { padding: 0; overflow: hidden; min-height: 280px; }
.tile--photo img { width: 100%; height: 100%; object-fit: cover; }
.pair { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); gap: 18px; align-items: center; }
.pair .shot--tall img { max-width: 100%; }
.card-grid h3 { font-size: 1.25rem; margin-bottom: 10px; }
.tile .sub { font-size: 1rem; font-weight: 700; font-family: var(--body); letter-spacing: 0; margin: 18px 0 8px; }
.takeaways { margin-top: 4px; }

/* in-page contents list */
.toc h3 { margin-bottom: 14px; }
.toc ol { display: grid; gap: 8px; counter-reset: none; }
.toc a {
  display: flex; align-items: center; gap: 14px; padding: 13px 16px;
  border-radius: 14px; background: var(--chip); text-decoration: none; font-weight: 600;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.toc a::after { content: "\2192"; margin-left: auto; transition: transform .2s ease; }
.toc a:hover { background: var(--earth-red); color: var(--on-red); transform: translateX(4px); }
.toc a:hover::after { transform: translateX(4px); }
.toc__n { font-family: var(--display); font-weight: 800; color: var(--mark); min-width: 1.6rem; }
.toc a:hover .toc__n { color: var(--on-red); }

/* audit findings: sticky notes on a pinboard tile */
.board {
  padding: 40px 32px 36px;
  background-color: var(--board-bg);
  background-image: radial-gradient(var(--board-dot) 1.3px, transparent 1.4px);
  background-size: 22px 22px;
}
.notes { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 34px 26px; }
.note {
  position: relative; padding: 36px 26px 28px; border-radius: 6px 6px 14px 6px;
  background: var(--note, #FBEFB4); color: #12161C;
  box-shadow: 0 1px 0 rgba(18,22,28,.06), 0 14px 20px -12px rgba(18,22,28,.35);
  transform: rotate(var(--tilt, 0deg));
  transition: transform .25s ease, box-shadow .25s ease;
}
.note:hover { transform: rotate(0deg) translateY(-5px); box-shadow: 0 1px 0 rgba(18,22,28,.06), 0 22px 26px -14px rgba(18,22,28,.4); }
.note::before {
  content: ""; position: absolute; top: 10px; left: 50%; width: 16px; height: 16px; margin-left: -8px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #D86A74 0, #7C1B2A 55%, #5E0E1B 100%);
  box-shadow: 0 3px 4px rgba(18,22,28,.35);
}
.note h3 { font-size: 1.25rem; margin-bottom: 10px; }
.note .stack { gap: 12px; }
.n-onb { grid-column: span 5; grid-row: span 2; --note: #FBEFB4; --tilt: -1.4deg; }
.n-pal { grid-column: span 4; --note: #F8DADC; --tilt: 1.1deg; }
.n-nav { grid-column: span 3; --note: #D6E6FA; --tilt: -0.8deg; }
.n-today { grid-column: span 7; --note: #D8EFE0; --tilt: 0.7deg; }
.n-side { grid-column: span 4; --note: #FCE0CC; --tilt: -1deg; }
.n-cond { grid-column: span 8; --note: #E6DFF7; --tilt: 1deg; }

/* numbered enhancement tiles, portrait shots */
.enh { display: grid; gap: 10px; align-content: start; }
.num {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: var(--earth-red); color: var(--on-red); font-family: var(--display); font-weight: 800; font-size: 1.1rem;
}
.enh h3 { margin: 6px 0 0; }
.shot--portrait img { max-width: min(100%, 420px); margin: 0 auto; }
.pair--grid { grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr); align-items: start; }
.pair--rev { grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr); }
.lead-on-dark { font-size: 1.15rem; line-height: 1.7; max-width: 62ch; }

/* closing */
.closing { --pad: 32px; display: flex; flex-direction: column; gap: 14px; overflow: hidden; padding-bottom: 0; }
.closing p { font-weight: 500; }
/* Art is cropped on its sides and bottom, so it runs edge to edge in the tile */
.closing img { align-self: center; width: calc(100% + var(--pad) * 2); max-width: none; margin: auto calc(var(--pad) * -1) 0; padding-top: 18px; }
.thanks { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.thanks h2 { margin: 0; font-size: clamp(1.8rem, 3.4vw, 2.3rem); font-weight: 800; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  min-height: 46px; padding: .6rem 1.3rem; border-radius: 999px;
  font-weight: 600; text-decoration: none; border: 2px solid var(--ink);
  transition: transform .2s ease;
}
.btn svg { width: 16px; height: 16px; transition: transform .2s ease; }
.btn:hover { transform: translateY(-3px); }
.btn:hover svg.out { transform: translate(2px, -2px); }
.btn--solid { background: var(--solid-bg); color: var(--solid-fg); border-color: var(--solid-bg); }

footer { padding: 40px 0 56px; text-align: center; color: var(--muted); font-size: .95rem; }

a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.tile--wine a:focus-visible, .tile--night a:focus-visible { outline-color: #fff; }
.tile--night a:focus-visible { outline-color: var(--night-ink); }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
[id] { scroll-margin-top: 16px; }

@media (max-width: 960px) {
  .notes > .note { grid-column: span 12; grid-row: auto; }
  .s4, .s5, .s6, .s7, .s8 { grid-column: span 12; }
  .hero { padding: 32px 28px; }
  .area__media { height: 280px; }
}
@media (max-width: 560px) {
  .pair, .pair--rev, .pair--grid { grid-template-columns: 1fr; }
  .board { padding: 32px 18px 28px; }
  .pair .shot--tall { max-width: 260px; margin: 0 auto; }
  .wrap { padding: 0 16px; }
  .site-header .logo img { height: 34px; }
  .site-header nav a { padding: 10px 11px; }
  .tile { padding: 26px 22px; }
  .closing { --pad: 22px; padding-bottom: 0; }
  .hero { padding: 28px 22px; }
  .area__body { padding: 24px 22px 26px; }
  .media { padding: 16px; }
  .facts { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .note, .note:hover { transform: none; }
  .toc a:hover,
  .shot:hover img, .btn:hover, .site-header nav a:hover { transform: none; }
}