/* ==========================================================================
   town-theme.css · brings every case study into the town's design language.
   Loaded after the original stylesheets, so it only re-points tokens and
   restyles a handful of shared pieces. Each page sets data-place on <html>
   so its accent matches the building it lives in.
   ========================================================================== */
:root {
  --font-display: "Geist", "Helvetica Neue", Arial, system-ui, sans-serif;
  --font-text: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --weight-thin: 700;
  --weight-light: 400;

  /* ink from the town, on a page that is almost white with a breath of sky blue */
  --page: #F6FAFD;
  --ink-900: #141826; --ink-800: #1D2130; --ink-700: #353B4D; --ink-500: #585E70;
  --ink-400: #7E8496; --ink-300: #AEBAC7; --ink-200: #D9E4EC; --ink-100: #E7EEF4;
  --ink-050: #EEF4F9; --white: #FFFFFF;
  --surface: #FFFFFF; --surface-sunken: var(--ink-050);
  --rule-on-inverse: #343A4C;

  /* default accent: the town's marigold */
  --place: #F0962E; --place-ink: #8F602F;
  --mint-50: color-mix(in srgb, var(--place) 9%, #FFFFFF);
  --mint-100: color-mix(in srgb, var(--place) 22%, #FFFFFF);
  --mint-200: color-mix(in srgb, var(--place) 38%, #FFFFFF);
  --mint-400: var(--place);
  --mint-600: color-mix(in srgb, var(--place) 80%, var(--place-ink));
  --mint-700: color-mix(in srgb, var(--place) 45%, var(--place-ink));
  --mint-800: var(--place-ink);
}
html[data-place="nid"]       { --place: #C8643F; --place-ink: #9F543B; }
html[data-place="baatein"]   { --place: #B5487A; --place-ink: #A94574; }
html[data-place="studios"]   { --place: #5B6EE1; --place-ink: #5060C1; }
html[data-place="pforzheim"] { --place: #4D7FB0; --place-ink: #436C96; }
html[data-place="zomato"]    { --place: #E03A45; --place-ink: #C13642; }
html[data-place="tph"]       { --place: #2E8B6E; --place-ink: #2B7662; }
html[data-place="tvasta"]    { --place: #F07C2B; --place-ink: #9C582D; }
html[data-place="photo"]     { --place: #3E9AA8; --place-ink: #33717F; }
html[data-place="bucket"]    { --place: #E3A62F; --place-ink: #806330; }

html, body { background: var(--page); }

/* --- Header: the town's brand chip and pill buttons ---------------------- */
.site-header { height: auto; padding-block: 12px; }
.site-header { background: color-mix(in srgb, var(--page) 86%, transparent); }
.site-header[data-scrolled="true"] { background: color-mix(in srgb, var(--page) 94%, transparent); }
@media (prefers-reduced-transparency: reduce) { .site-header { background: var(--page); } }
.site-header__inner { gap: 12px; }
.town-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.wordmark {
  display: inline-flex; flex-direction: column; gap: 4px; padding: 9px 14px;
  border-radius: 14px; background: var(--white); box-shadow: 0 10px 26px rgba(29,33,48,.12), 0 2px 6px rgba(29,33,48,.06);
  font: 700 15px/1 var(--font-display); letter-spacing: -0.03em; text-transform: none;
}
.wordmark small { font: 500 10px/1 var(--font-mono); letter-spacing: .04em; color: var(--text-muted); }
.wordmark:hover { color: var(--text); }
.town-back {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px 0 10px;
  border-radius: 999px; background: var(--ink-800); color: var(--white);
  font: 600 13px/1 var(--font-text); white-space: nowrap; text-decoration: none;
  box-shadow: 0 10px 26px rgba(29,33,48,.16);
}
.town-back::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--place); box-shadow: 0 0 0 3px color-mix(in srgb, var(--place) 35%, transparent); }
.town-back:hover { background: var(--ink-700); color: var(--white); }

/* --- Titles in Geist --------------------- */
h1, h2, h3, .case-hero__title, .cover__title, .hero__heading, .chapter__title, .narrative__heading, .site-footer__cta, .work-group__title {
  font-family: var(--font-display); letter-spacing: -0.035em;
}
.case-hero__title { font-size: clamp(2.6rem, 1.6rem + 4vw, 5rem); font-weight: 700; letter-spacing: -0.05em; line-height: 1; text-wrap: balance; }
.case-hero__question { font-weight: 500; color: var(--text-muted); }
.cover__title { font-size: clamp(2.5rem, 1.5rem + 4.2vw, 5.4rem); font-weight: 700; letter-spacing: -0.05em; line-height: 1; }
.cover__sub { font-weight: 400; }
.fr .hero h1 { font-size: clamp(2.8rem, 1.6rem + 5vw, 6rem) !important; font-weight: 700 !important; letter-spacing: -0.055em !important; line-height: .98 !important; }
.fr .hero .sub, .fr .lede { font-weight: 400; }
.chapter__title, .narrative__heading { font-weight: 700; }
.site-footer__cta { font-weight: 700; letter-spacing: -0.045em; }

/* --- Eyebrows, labels and metadata in Geist Mono ----------------------- */
.case-hero__eyebrow, .t-meta, .case-meta dt, .fr .eyebrow, .fr .meta dt, .cover__eyebrow, .chapter__num,
.site-footer__label, .pager__label, .card__category, .card__index, .work-group__count {
  font-family: var(--font-mono); letter-spacing: .08em; font-size: .72rem;
}

/* --- Surfaces: softer corners and the town's paper tones ----------------- */
.btn { font-family: var(--font-text); font-weight: 600; letter-spacing: 0; text-transform: none; font-size: .9rem; }
.btn:hover { background: var(--ink-800); border-color: var(--ink-800); }
.board, .fig img, .gallery img, .card__media, .card__media img, .supplementary__grid img { border-radius: 14px; }
.card { border-radius: 18px; }
.grid-backdrop { background-color: var(--page); }
.site-footer.on-inverse, .on-inverse { background-color: var(--ink-800); }
.progress { background: var(--place); }

/* --- A slim chapter ribbon under the header ------------------------------ */
.town-ribbon {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px;
  width: 100%; max-width: var(--measure-content); margin: 8px auto 0; padding-inline: var(--space-gutter);
  font: 600 11px/1.3 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted);
}
.town-ribbon a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--place); }
.town-ribbon .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--place); }

@media (max-width: 47.99em) {
  .wordmark small { display: none; }
  .wordmark { padding: 9px 12px; font-size: 13px; }
  .town-back { height: 36px; font-size: 12px; padding: 0 12px 0 9px; }
}

/* --- Top bar: the same buttons as the town ------------------------------- */
.town-nav { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.tn-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 42px; padding: 0 15px;
  border: 0; border-radius: 999px; background: var(--surface); color: var(--text); cursor: pointer;
  box-shadow: 0 10px 26px rgba(29,33,48,.12), 0 2px 6px rgba(29,33,48,.06);
  font: 600 13px/1 var(--font-text); letter-spacing: 0; text-transform: none; text-decoration: none; white-space: nowrap;
}
.tn-btn:hover { background: var(--surface-sunken); color: var(--text); }
.tn-btn svg { width: 18px; height: 18px; flex: none; }
.tn-btn.icon { width: 42px; padding: 0; }
.tn-btn .sun { display: none; }
@media (max-width: 64em) { .tn-btn { width: 42px; padding: 0; } .tn-btn .lbl { display: none; } }
@media (max-width: 47.99em) {
  .site-header__inner { flex-wrap: wrap; row-gap: 8px; column-gap: 8px; }
  .town-brand { display: contents; }
  .site-header__inner::after { content: ""; flex-basis: 100%; order: 2; }
  .town-back { order: 3; }
  .town-nav { order: 1; gap: 6px; }
  .tn-btn { width: 38px; height: 38px; padding: 0; }
  .tn-btn .lbl { display: none; }
}

/* --- All work page: numbered groups and cards, like the All work sheet in the town */
:root { --num: #1B3264; }
main { counter-reset: grp; }
.work-group { counter-increment: grp; }
.work-group__header { align-items: baseline; }
.work-group__title { font: 700 clamp(1.5rem, 1.1rem + 1.6vw, 2.15rem)/1 var(--font-display); letter-spacing: -0.04em; text-transform: none; color: var(--text); }
.work-group__title::before { content: counter(grp, decimal-leading-zero); color: var(--num); margin-right: 0.55em; font-variant-numeric: tabular-nums; }
.work-group__count { font-family: var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.work-group__count::after { content: " projects"; }
.card__index { color: var(--num); }
.card__title { font: 700 clamp(1.15rem, 1rem + 0.5vw, 1.4rem)/1.2 var(--font-display); letter-spacing: -0.03em; }
.card__question { font-size: var(--step-0); }

/* --- Case study boards are slices of one tall board: stitch them back together */
.boards { gap: 0; }
.boards .board, .boards .board img { border-radius: 0; }
.boards .board img { display: block; background: transparent; }
.boards .board + .board { margin-top: -1px; }
.boards .board:first-child img { border-radius: 14px 14px 0 0; }
.boards .board:last-child img { border-radius: 0 0 14px 14px; }
.boards .board:only-child img { border-radius: 14px; }
.reveal-ready .boards [data-reveal] { opacity: 1; transform: none; transition: none; }

/* --- Dark mode: follows the device, or the toggle in the top bar ---------- */
:root[data-theme="dark"] {
    --num: #A9C3F2;
  color-scheme: dark;
  --page: #10141F; --surface: #192030; --surface-sunken: #1F2738; --white: #FFFFFF;
  --text: #ECEFF5; --text-muted: #AAB3C4; --text-subtle: #8B96AA;
  --rule: #2B3446; --rule-strong: #ECEFF5; --surface-inverse: #0A0D16;
  --ink-050: #1F2738; --ink-100: #273042; --ink-200: #2F394D; --ink-300: #4A5569;
  --grid-line: rgba(255,255,255,.05); --grid-line-strong: rgba(255,255,255,.09);
  --mint-50: color-mix(in srgb, var(--place) 16%, #192030);
  --mint-100: color-mix(in srgb, var(--place) 28%, #192030);
  --mint-200: color-mix(in srgb, var(--place) 42%, #192030);
  --mint-600: color-mix(in srgb, var(--place) 80%, #FFFFFF);
  --mint-700: color-mix(in srgb, var(--place) 70%, #FFFFFF);
  --mint-800: color-mix(in srgb, var(--place) 62%, #FFFFFF);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --num: #A9C3F2;
    color-scheme: dark;
    --page: #10141F; --surface: #192030; --surface-sunken: #1F2738; --white: #FFFFFF;
    --text: #ECEFF5; --text-muted: #AAB3C4; --text-subtle: #8B96AA;
    --rule: #2B3446; --rule-strong: #ECEFF5; --surface-inverse: #0A0D16;
    --ink-050: #1F2738; --ink-100: #273042; --ink-200: #2F394D; --ink-300: #4A5569;
    --grid-line: rgba(255,255,255,.05); --grid-line-strong: rgba(255,255,255,.09);
    --mint-50: color-mix(in srgb, var(--place) 16%, #192030);
    --mint-100: color-mix(in srgb, var(--place) 28%, #192030);
    --mint-200: color-mix(in srgb, var(--place) 42%, #192030);
    --mint-600: color-mix(in srgb, var(--place) 80%, #FFFFFF);
    --mint-700: color-mix(in srgb, var(--place) 70%, #FFFFFF);
    --mint-800: color-mix(in srgb, var(--place) 62%, #FFFFFF);
  }
}

:root[data-theme="dark"] .wordmark { background: var(--surface); }
:root[data-theme="dark"] .wordmark small { color: var(--text-subtle); }
:root[data-theme="dark"] .town-back { background: #ECEFF5; color: #141826; box-shadow: 0 10px 26px rgba(0,0,0,.35); }
:root[data-theme="dark"] .town-back:hover { background: #FFFFFF; color: #141826; }
:root[data-theme="dark"] .tn-btn { box-shadow: 0 10px 26px rgba(0,0,0,.35), 0 2px 6px rgba(0,0,0,.25); }
:root[data-theme="dark"] .tn-btn .moon { display: none; } :root[data-theme="dark"] .tn-btn .sun { display: block; }
:root[data-theme="dark"] .btn:hover { background: var(--text); border-color: var(--text); color: var(--page); }
:root[data-theme="dark"] .fr { --ink-2: var(--text-muted); --danger-wash: #3A1E1C; }
:root[data-theme="dark"] .fr .phone .screen { background: #FFFFFF; }
:root[data-theme="dark"] .fig img, :root[data-theme="dark"] .object img, :root[data-theme="dark"] .board img { background: var(--surface-sunken); }
:root[data-theme="dark"] .case-hero__question, :root[data-theme="dark"] .cover__sub { color: var(--text-muted); }

@media (prefers-color-scheme: dark) {

:root:not([data-theme="light"]) .wordmark { background: var(--surface); }
:root:not([data-theme="light"]) .wordmark small { color: var(--text-subtle); }
:root:not([data-theme="light"]) .town-back { background: #ECEFF5; color: #141826; box-shadow: 0 10px 26px rgba(0,0,0,.35); }
:root:not([data-theme="light"]) .town-back:hover { background: #FFFFFF; color: #141826; }
:root:not([data-theme="light"]) .tn-btn { box-shadow: 0 10px 26px rgba(0,0,0,.35), 0 2px 6px rgba(0,0,0,.25); }
:root:not([data-theme="light"]) .tn-btn .moon { display: none; } :root:not([data-theme="light"]) .tn-btn .sun { display: block; }
:root:not([data-theme="light"]) .btn:hover { background: var(--text); border-color: var(--text); color: var(--page); }
:root:not([data-theme="light"]) .fr { --ink-2: var(--text-muted); --danger-wash: #3A1E1C; }
:root:not([data-theme="light"]) .fr .phone .screen { background: #FFFFFF; }
:root:not([data-theme="light"]) .fig img, :root:not([data-theme="light"]) .object img, :root:not([data-theme="light"]) .board img { background: var(--surface-sunken); }
:root:not([data-theme="light"]) .case-hero__question, :root:not([data-theme="light"]) .cover__sub { color: var(--text-muted); }

}