/* Palimpsest · Field line design */
/* Layout: a full-window painted globe. The timeline, a transit line coloured by geologic time, rides along the bottom;
   the history drawer floats left and the place card floats right. */
:root {
  --space: #eeebe3;              /* the paper behind everything */
  --panel: rgba(251,250,246,.96);
  --panel-solid: #fbfaf6;
  --ink: #22302a;                /* field-notebook green-black */
  --ink-soft: #6c776f;
  --line: rgba(34,48,42,.13);
  --accent: #d4492a;             /* signal red: the playhead, the present, ranks */
  --on-accent: #fff;
  --brass: #5f8f7d;              /* sage: notes and landmarks */
  --hover: rgba(95,143,125,.08);
  --chip: rgba(34,48,42,.07);
  --f-display: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-ui: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-year: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-note: "Cormorant Garamond", Georgia, serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --rail: #c9c3b5;               /* repainted in geologic colours at start-up */
  --readout-bg: radial-gradient(ellipse at center, rgba(251,250,246,.82) 0%, rgba(251,250,246,.5) 50%, transparent 74%);
  --readout-shadow: none;
  --station: #ffffff;            /* transit stations and event pins */
  --station-ink: #22302a;
  --sage-ink: #3e6b5b;           /* thinker names and schools */
  --shadow: rgba(34,48,42,.12);
  --scrim: rgba(28,38,33,.45);   /* behind the tutorial */
  --tick: rgba(34,48,42,.45);
  --tick-soft: rgba(34,48,42,.18);
  --attrib-bg: rgba(251,250,246,.85);
  --yr-hover: rgba(251,250,246,.6);
  --icon-filter: none;           /* map control icons */
  color-scheme: light;
}

/* Field line at night: the same design for dark rooms. Follows the system setting unless the reader picks one. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --space: #121815; --panel: rgba(27,34,30,.94); --panel-solid: #1b221e; --ink: #e6ebe4; --ink-soft: #9ba79f;
    --line: rgba(230,235,228,.12); --accent: #ef6c4b; --on-accent: #fff; --brass: #8fc2ab; --hover: rgba(143,194,171,.1); --chip: rgba(230,235,228,.07);
    --readout-bg: radial-gradient(ellipse at center, rgba(18,24,21,.8) 0%, rgba(18,24,21,.45) 50%, transparent 74%); --readout-shadow: 0 2px 12px rgba(0,0,0,.55);
    --station: #f2f4ef; --station-ink: #121815; --sage-ink: #9fd1b9; --shadow: rgba(0,0,0,.45); --scrim: rgba(4,7,5,.6);
    --tick: rgba(230,235,228,.45); --tick-soft: rgba(230,235,228,.16); --attrib-bg: rgba(27,34,30,.85); --yr-hover: rgba(27,34,30,.7);
    --icon-filter: invert(1) brightness(.92); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --space: #121815; --panel: rgba(27,34,30,.94); --panel-solid: #1b221e; --ink: #e6ebe4; --ink-soft: #9ba79f;
  --line: rgba(230,235,228,.12); --accent: #ef6c4b; --on-accent: #fff; --brass: #8fc2ab; --hover: rgba(143,194,171,.1); --chip: rgba(230,235,228,.07);
  --readout-bg: radial-gradient(ellipse at center, rgba(18,24,21,.8) 0%, rgba(18,24,21,.45) 50%, transparent 74%); --readout-shadow: 0 2px 12px rgba(0,0,0,.55);
  --station: #f2f4ef; --station-ink: #121815; --sage-ink: #9fd1b9; --shadow: rgba(0,0,0,.45); --scrim: rgba(4,7,5,.6);
  --tick: rgba(230,235,228,.45); --tick-soft: rgba(230,235,228,.16); --attrib-bg: rgba(27,34,30,.85); --yr-hover: rgba(27,34,30,.7);
  --icon-filter: invert(1) brightness(.92); color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body { background: var(--space); color: var(--ink); font: 14px/1.4 var(--f-ui); overflow: hidden; }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#map { position: fixed; inset: 0; }
.glass { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 10px 30px var(--shadow); }
.tag { font: 500 10px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }

/* ---------- Year readout ---------- */
.readout { position: fixed; z-index: 5; top: calc(6px + env(safe-area-inset-top, 0px)); left: 50%; transform: translateX(-50%); text-align: center; pointer-events: none; text-shadow: var(--readout-shadow); padding: 10px 48px 14px; background: var(--readout-bg); }
.readout .yr { font-family: var(--f-year); }
.readout .period { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; padding: 4px 10px 4px 4px; border-radius: 999px; background: var(--panel-solid); color: var(--ink); font: 600 12px/1 var(--f-ui); text-shadow: none; }
.readout .period i { width: 16px; height: 16px; border-radius: 50%; display: inline-block; box-shadow: inset 0 0 0 1px rgba(0,0,0,.2); }
.readout .yr { font: 400 clamp(40px, 6vw, 68px)/1 var(--f-display); color: var(--ink); font-variant-numeric: lining-nums; }
.readout .yr small { font-size: .45em; color: var(--brass); margin-left: .2em; }
.readout .era { margin-top: 4px; font: 400 italic 18px/1.2 var(--f-display); color: var(--brass); }
.readout .src { margin-top: 6px; }

/* ---------- Drawer ---------- */
.drawer { position: fixed; z-index: 6; top: calc(14px + env(safe-area-inset-top, 0px)); left: 14px; bottom: 132px; width: min(320px, calc(100vw - 28px)); display: flex; flex-direction: column; overflow: hidden; transition: transform .25s ease; }
.drawer.closed { transform: translateX(calc(-100% - 28px)); }
.drawer header { padding: 14px 16px 12px; border-bottom: 1px solid var(--line); display: grid; gap: 6px; }
.brand { display: flex; align-items: baseline; justify-content: space-between; }
.brand h1 { margin: 0; font: 400 25px/1 var(--f-display); }
.brand h1 i { color: var(--accent); }
.x { border: 0; background: none; color: var(--ink-soft); font-size: 20px; cursor: pointer; line-height: 1; padding: 2px 4px; }
.tabs { display: flex; gap: 4px; padding: 10px 16px 0; }
.tabs button { flex: 1; padding: 6px 0; border: 1px solid var(--line); background: none; border-radius: 4px; cursor: pointer; font-weight: 500; color: var(--ink-soft); }
.tabs button[aria-selected="true"] { background: var(--ink); color: var(--panel-solid); border-color: var(--ink); }
.scroll { flex: 1; overflow-y: auto; padding: 6px 0 10px; }
.scroll h2 { margin: 0; padding: 12px 16px 6px; font: 500 10px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }
.card { display: grid; grid-template-columns: 58px 1fr; gap: 10px; align-items: center; width: 100%; text-align: left; padding: 8px 16px; border: 0; background: none; cursor: pointer; border-left: 3px solid transparent; }
.card:hover { background: var(--hover); }
.card.on { border-left-color: var(--brass); }
.card.off { opacity: .55; }
.card .when { font: 500 11.5px/1.15 var(--f-mono); color: var(--brass); font-variant-numeric: tabular-nums; }
.card .t { display: block; font: 400 16px/1.15 var(--f-display); }
.card .s { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.empty { padding: 8px 16px; color: var(--ink-soft); font-size: 13px; }
.foot { border-top: 1px solid var(--line); padding: 10px 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; }
.foot .tut-btn { margin-left: auto; }
.foot a { color: var(--brass); font-size: 12.5px; text-decoration: none; }
.foot a:hover { text-decoration: underline; }
.open-drawer { position: fixed; z-index: 6; top: calc(14px + env(safe-area-inset-top, 0px)); left: 14px; padding: 8px 12px; cursor: pointer; font-weight: 500; }
.drawer:not(.closed) ~ .open-drawer { display: none; }

/* ---------- Place card ---------- */
.place { position: fixed; z-index: 6; top: calc(14px + env(safe-area-inset-top, 0px)); right: 64px; width: min(340px, calc(100vw - 92px)); padding: 12px 14px 12px; overflow-y: auto; overscroll-behavior: contain; }
.place h3 { margin: 4px 0 4px; font: 400 22px/1.1 var(--f-display); text-wrap: balance; }
.place p { margin: 0 0 6px; color: var(--ink-soft); font-size: 12.5px; }
.place a { color: var(--brass); font-size: 12.5px; }
.place img { display: block; width: 100%; max-height: 160px; object-fit: cover; border-radius: 4px; margin: 6px 0 8px; }
.place .extract { color: var(--ink); font-size: 13.5px; line-height: 1.5; }
.place .event-text { color: var(--ink); font: 400 16px/1.3 var(--f-display); }
.hist-head { padding: 12px 16px 4px; display: grid; gap: 4px; }
.hist-head h3 { margin: 0; font: 400 28px/1.05 var(--f-display); }
.hist-head a { color: var(--brass); font-size: 12px; text-decoration: none; }
.hist-head a:hover { text-decoration: underline; }
.hist-head .ctx { color: var(--ink-soft); font-size: 12.5px; line-height: 1.45; }
.ev { display: grid; grid-template-columns: 58px 1fr 12px; gap: 10px; width: 100%; text-align: left; padding: 8px 16px; border: 0; background: none; cursor: pointer; align-items: start; }
.ev.ranked { grid-template-columns: 22px 58px 1fr 12px; }
.ev .rank { font: 400 18px/1 var(--f-display); color: var(--ink-soft); text-align: right; padding-top: 1px; }
.ev:hover { background: var(--hover); }
.ev .d { font: 500 11px/1.35 var(--f-mono); color: var(--brass); }
.ev .x2 { font-size: 13px; line-height: 1.42; color: var(--ink); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.ev:hover .x2, .ev.active .x2 { -webkit-line-clamp: unset; }
.scroll h2 { border-top: 1px solid var(--line); margin-top: 10px !important; padding-top: 14px !important; }
.scroll .hist-head + h2, .scroll h2:first-child { border-top: 0; margin-top: 0 !important; }
.more { display: block; width: calc(100% - 32px); margin: 8px 16px 14px; padding: 9px; border: 1px solid var(--line); border-radius: 6px; background: none; cursor: pointer; font-weight: 500; color: var(--ink); }
.more:hover { background: var(--hover); }
.nudge .today { margin-left: 6px; border-color: rgba(224,113,79,.6); color: var(--accent); }
.ticks span.off { visibility: hidden; }
.ev .pin { width: 9px; height: 9px; border-radius: 50%; margin-top: 4px; background: var(--accent); box-shadow: 0 0 0 2px rgba(224,113,79,.3); }
.ev .pin.no { background: none; box-shadow: none; }
.ev.active { background: rgba(224,113,79,.12); }
.place .x { position: sticky; top: 0; float: right; margin: -6px -8px 0 6px; background: var(--panel-solid); border-radius: 50%; width: 26px; height: 26px; }

/* ---------- Timeline ---------- */
.timeline { position: fixed; z-index: 7; left: 14px; right: 14px; bottom: calc(14px + env(safe-area-inset-bottom, 0px)); padding: 10px 16px 12px; display: grid; gap: 8px; }
.tl-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.play { width: 38px; height: 38px; border-radius: 50%; border: 0; background: var(--accent); color: var(--on-accent); font-size: 15px; cursor: pointer; display: grid; place-items: center; flex: none; }
.track { position: relative; flex: 1; min-width: 220px; height: 38px; }
.track input { position: absolute; inset: 0; width: 100%; margin: 0; opacity: 0; cursor: pointer; z-index: 2; }
.track .rail { position: absolute; left: 0; right: 0; top: 17px; height: 4px; border-radius: 2px; background: var(--rail); }
.track .density { position: absolute; left: 0; right: 0; top: 10px; height: 18px; pointer-events: none; }
.track .density i { position: absolute; top: 0; width: 2px; height: 18px; background: rgba(214,178,110,.55); transform: translateX(-1px); border-radius: 1px; }
.track .head { position: absolute; top: 7px; width: 4px; height: 24px; margin-left: -2px; background: var(--ink); border-radius: 2px; box-shadow: 0 0 0 3px rgba(224,113,79,.55); pointer-events: none; }
.track input:focus-visible ~ .head { box-shadow: 0 0 0 3px var(--accent); }
.ticks { position: relative; height: 14px; margin-left: 50px; margin-right: 0; }
.ticks span { position: absolute; transform: translateX(-50%); font: 500 10px/1 var(--f-mono); color: var(--ink-soft); white-space: nowrap; }
.speed, .opt { display: flex; align-items: center; gap: 8px; }
.speed input, .opt input[type=range] { width: 110px; accent-color: var(--accent); }
.pill { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: none; cursor: pointer; font-weight: 500; font-size: 12.5px; color: var(--ink); }
.pill[aria-pressed="true"] { background: var(--ink); color: var(--panel-solid); }
.tl-controls { display: flex; gap: 10px 16px; flex-wrap: wrap; align-items: center; margin-left: 50px; }
.nudge { display: inline-flex; gap: 4px; }
.nudge button { padding: 4px 8px; border: 1px solid var(--line); border-radius: 4px; background: none; cursor: pointer; font: 500 11px/1 var(--f-mono); }

.track .bands { position: absolute; left: 0; right: 0; top: 23px; height: 14px; pointer-events: none; }
.track .bands span { position: absolute; top: 0; height: 14px; border-left: 1px solid rgba(214,178,110,.35); padding-left: 4px; font: 500 9px/14px var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: rgba(214,178,110,.75); white-space: nowrap; overflow: hidden; }
.track .marks { position: absolute; left: 0; right: 0; top: 0; height: 15px; z-index: 3; pointer-events: none; }
.track .marks button { position: absolute; top: 4px; width: 7px; height: 7px; margin-left: -3.5px; border-radius: 50%; border: 0; padding: 0; background: var(--ink-soft); opacity: .7; cursor: pointer; pointer-events: auto; }
.track .marks button.k2 { background: var(--brass); opacity: .85; }
.track .marks button.k3 { top: 2px; width: 10px; height: 10px; margin-left: -5px; background: var(--brass); opacity: 1; box-shadow: 0 0 0 2px rgba(214,178,110,.25); }
.track .marks button:hover, .track .marks button:focus-visible { background: var(--accent); opacity: 1; transform: scale(1.3); }
.readout .day { font: 400 20px/1 var(--f-display); color: var(--brass); margin-bottom: 2px; }
.cal { padding: 4px 16px 6px; display: grid; gap: 2px; }
.cal .row { display: grid; grid-template-columns: 24px repeat(31, 1fr); gap: 1px; align-items: center; }
.cal .row b { font: 500 9px/1 var(--f-mono); color: var(--ink-soft); }
.cal button { aspect-ratio: 1; border: 0; padding: 0; border-radius: 1.5px; background: var(--chip); cursor: default; }
.cal button.has { cursor: pointer; }
.cal button.has:hover { outline: 1px solid var(--ink); }
.cal button.sel { outline: 2px solid var(--ink); outline-offset: 0; }
.cal button.void { visibility: hidden; }
.cal-legend { display: flex; justify-content: space-between; padding: 0 16px; font: 500 9.5px/1 var(--f-mono); color: var(--ink-soft); }
.daynav { display: flex; align-items: center; gap: 8px; padding: 8px 16px 2px; }
.daynav .lbl { flex: 1; font: 400 18px/1.1 var(--f-display); }
.daynav button { padding: 4px 9px; border: 1px solid var(--line); border-radius: 4px; background: none; cursor: pointer; font: 500 11px/1 var(--f-mono); }
.ev .imp { display: block; height: 2px; margin-top: 5px; border-radius: 1px; background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 15%, transparent)); }
.ms-row { display: grid; grid-template-columns: 86px 1fr 14px; gap: 8px; width: 100%; text-align: left; padding: 8px 16px; border: 0; background: none; cursor: pointer; align-items: start; }
.ms-row:hover { background: var(--hover); }
.ms-row .d { font: 500 10.5px/1.35 var(--f-mono); color: var(--brass); }
.ms-row .t { display: block; font: 400 16px/1.15 var(--f-display); }
.ms-row .s { display: block; font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; line-height: 1.38; }
.here { margin: 4px 16px; padding: 5px 8px; border: 1px dashed rgba(224,113,79,.6); border-radius: 4px; font: 500 10px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }


/* ---------- Field line details ---------- */
.card:hover, .ev:hover, .ms-row:hover, .more:hover { background: var(--hover); }
.cal button { background: var(--chip); }
#tint { position: fixed; inset: 0; z-index: 1; pointer-events: none; }
.hover-pop .maplibregl-popup-content { box-shadow: 0 4px 14px rgba(0,0,0,.15); }
.glass { border-radius: 14px; box-shadow: 0 10px 30px var(--shadow); }
.readout .yr { font-weight: 800; letter-spacing: -.035em; }
.readout .era { font: italic 500 19px/1.2 var(--f-note); color: var(--brass); }
.readout .day { font: 700 18px/1 var(--f-ui); color: var(--accent); }
.brand h1 { font-weight: 800; letter-spacing: -.03em; }
.brand h1 i { font-style: normal; color: var(--accent); }
.drawer header > .tag, .scroll h2 { font: italic 500 15px/1.1 var(--f-note); text-transform: none; letter-spacing: .02em; color: var(--brass); }
.hist-head h3 { font-weight: 800; letter-spacing: -.03em; }
.hist-head .ctx, .ms-row .s { font-family: var(--f-note); font-size: 15px; }
.ev .d, .ms-row .d { font: italic 500 14px/1.3 var(--f-note); color: var(--ink-soft); }
.ev .rank { width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: #fff; font: 700 12px/22px var(--f-ui); text-align: center; padding: 0; }
.ev .pin { background: var(--station); box-shadow: inset 0 0 0 2.5px var(--station-ink); width: 11px; height: 11px; }
.track .rail { height: 9px; top: 15px; border-radius: 5px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.12); }
.track .marks { height: 38px; }
.track .marks button { top: 15.5px; width: 8px; height: 8px; margin-left: -4px; background: var(--station); border: 2px solid var(--station-ink); opacity: 1; }
.track .marks button.k3 { top: 13.5px; width: 12px; height: 12px; margin-left: -6px; border-width: 3px; box-shadow: none; }
.track .head { top: 11px; width: 18px; height: 17px; margin-left: -9px; border-radius: 5px; background: var(--ink); box-shadow: 0 0 0 2px var(--panel-solid); }
.track .bands span { color: var(--ink); border-left-color: var(--tick-soft); font-weight: 600; }

/* ---------- Tour caption ---------- */
.caption { position: fixed; z-index: 7; left: 50%; transform: translateX(-50%); bottom: 150px; max-width: min(560px, calc(100vw - 28px)); padding: 12px 16px; display: grid; gap: 6px; }
.caption .step { font: 400 19px/1.25 var(--f-display); }
.caption .row { display: flex; gap: 8px; justify-content: space-between; align-items: center; }

.hover-pop .maplibregl-popup-content { background: var(--panel-solid); color: var(--ink); font: 500 12.5px/1.2 var(--f-ui); padding: 6px 9px; border-radius: 4px; border: 1px solid var(--line); }
.hover-pop .maplibregl-popup-tip { display: none; }
.maplibregl-ctrl-group { background: var(--panel-solid) !important; border: 1px solid var(--line); }
.maplibregl-ctrl-group button + button { border-top-color: var(--line) !important; }
.maplibregl-ctrl-attrib { background: var(--attrib-bg) !important; color: var(--ink-soft) !important; font-size: 10.5px; }
.maplibregl-ctrl-attrib a { color: var(--brass) !important; }
.maplibregl-ctrl-top-right { top: calc(env(safe-area-inset-top, 0px)); }


@media (max-width: 760px) {
  .drawer { bottom: auto; max-height: 45vh; }
  .readout .yr { font-size: 38px; }
  .place { top: auto; bottom: 200px; right: 14px; width: calc(100vw - 28px); }
  .tl-controls, .ticks { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { .drawer { transition: none; } }

/* ---------- Typing a moment ---------- */
.readout .yr { pointer-events: auto; cursor: text; border-radius: 10px; padding: 0 10px; }
.readout .yr:hover { background: var(--yr-hover); }
.readout .yr:focus-visible { outline: 2px solid var(--accent); }
.yr-input { pointer-events: auto; width: min(560px, 80vw); padding: 8px 14px; border: 2px solid var(--accent); border-radius: 12px; background: var(--panel-solid); color: var(--ink); font: 800 30px/1.1 var(--f-year); text-align: center; letter-spacing: -.02em; }
.yr-hint { margin-top: 6px; font: italic 500 14px/1.2 var(--f-note); color: var(--ink-soft); }
.yr-hint.bad { color: var(--accent); }

/* ---------- Fine ruler ---------- */
.fine-row { display: flex; align-items: center; gap: 8px; margin-left: 50px; }
.fz { width: 24px; height: 24px; border: 1px solid var(--line); border-radius: 50%; background: var(--panel-solid); cursor: pointer; font: 600 14px/1 var(--f-ui); color: var(--ink); }
.fz:disabled { opacity: .35; cursor: default; }
.fine-track { position: relative; flex: 1; height: 28px; border-radius: 6px; background: repeating-linear-gradient(90deg, var(--tick-soft) 0 1px, transparent 1px 10px) 0 18px / 100% 6px no-repeat, var(--chip); }
.fine-track input { position: absolute; inset: 0; width: 100%; margin: 0; opacity: 0; cursor: ew-resize; z-index: 2; }
.fine-ticks { position: absolute; inset: 0; pointer-events: none; }
.fine-ticks span { position: absolute; top: 3px; transform: translateX(-50%); font: 500 10px/1 var(--f-mono); color: var(--ink-soft); white-space: nowrap; }
.fine-ticks span::after { content: ""; position: absolute; left: 50%; top: 13px; height: 9px; border-left: 1px solid var(--tick); }
.fine-head { position: absolute; top: 2px; bottom: 2px; width: 3px; margin-left: -1.5px; background: var(--accent); border-radius: 2px; pointer-events: none; }
.fine-span { border: 0; background: none; cursor: pointer; font: italic 500 13px/1 var(--f-note); color: var(--ink-soft); min-width: 92px; text-align: left; }
.fine-span:hover { color: var(--ink); }

/* ---------- Layer switches ---------- */
.layer-chips { display: flex; align-items: center; gap: 6px; padding: 10px 16px 0; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 7px; border: 1px solid var(--line); border-radius: 999px; background: none; cursor: pointer; font: 600 12px/1 var(--f-ui); color: var(--ink-soft); }
.chip i { width: 10px; height: 10px; border-radius: 50%; border: 2px solid currentColor; }
.chip[aria-pressed="true"] { color: var(--ink); background: var(--panel-solid); box-shadow: 0 1px 3px var(--shadow); }
.chip-events[aria-pressed="true"] i { background: var(--station); border-color: var(--station-ink); box-shadow: 0 0 0 1px var(--ink-soft); }
.chip-thinkers[aria-pressed="true"] i { background: var(--brass); border-color: var(--brass); }
.chip-art[aria-pressed="true"] i { background: #d9c27a; border-color: #b0904a; border-radius: 3px; }

/* ---------- Thinkers and art in the panel ---------- */
.th-row { display: grid; grid-template-columns: 86px 1fr; gap: 8px; width: 100%; text-align: left; padding: 7px 16px; border: 0; background: none; cursor: pointer; align-items: start; }
.th-row:hover { background: var(--hover); }
.th-row .d { font: italic 500 13.5px/1.3 var(--f-note); color: var(--sage-ink); }
.th-row .t { display: block; font: 600 14.5px/1.2 var(--f-ui); }
.th-row .s { display: block; font: 400 14.5px/1.35 var(--f-note); color: var(--ink-soft); margin-top: 2px; }
.art-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 4px 16px 6px; }
.art-tile { position: relative; aspect-ratio: 1; border: 0; padding: 0; border-radius: 6px; overflow: hidden; cursor: pointer; background: var(--chip); }
.art-tile img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .25s; }
.art-tile:hover img { transform: scale(1.06); }
.art-tile span { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 6px 5px; font: 600 10.5px/1.15 var(--f-ui); color: #fff; background: linear-gradient(transparent, rgba(0,0,0,.65)); text-align: left; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.layer-sec .credit { padding: 0 16px 8px; margin: 0; font: italic 400 13px/1.3 var(--f-note); color: var(--ink-soft); }
.layer-sec .credit a { color: var(--brass); }
.place .school { display: block; margin-top: 4px; font: italic 500 14px/1.2 var(--f-note); color: var(--sage-ink); }
.art-pin { width: 36px; height: 36px; padding: 0; border: 2.5px solid #fff; border-radius: 8px; overflow: hidden; background: #d9c27a; box-shadow: 0 4px 12px var(--shadow); cursor: pointer; transition: transform .2s; }
.art-pin:hover { transform: scale(1.35); z-index: 2; }
.art-pin img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- Asking the guide ---------- */
.pill.ask { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.pill.ask:hover { background: var(--accent); color: var(--on-accent); }
.place-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.ask-mini { border: 0; background: none; cursor: pointer; font: 700 12.5px/1 var(--f-ui); color: var(--accent); padding: 4px 0; }
.guide { position: fixed; z-index: 8; top: calc(14px + env(safe-area-inset-top, 0px)); right: 64px; bottom: 150px; width: min(400px, calc(100vw - 92px)); display: flex; flex-direction: column; overflow: hidden; }
.guide header { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 12px 14px 10px; border-bottom: 1px solid var(--line); }
.g-title { display: flex; align-items: center; gap: 10px; min-width: 0; }
.g-title h2 { margin: 0; font: 800 18px/1 var(--f-display); letter-spacing: -.02em; }
.g-title .tag { display: block; margin-top: 4px; font: italic 500 13px/1.2 var(--f-note); text-transform: none; letter-spacing: .01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 230px; }
.spark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--on-accent); font-size: 15px; }
.g-tools { display: flex; align-items: center; gap: 4px; }
.g-icon { border: 1px solid var(--line); border-radius: 999px; background: none; padding: 4px 9px; cursor: pointer; font: 600 11.5px/1 var(--f-ui); color: var(--ink-soft); }
.g-icon:hover { color: var(--ink); }
.g-key { padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--chip); }
.g-key p { margin: 0 0 8px; font: 400 15px/1.4 var(--f-note); }
.g-key form { display: flex; gap: 6px; margin-bottom: 6px; }
.g-key input { flex: 1; min-width: 0; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-solid); font: 400 13px/1 var(--f-mono); }
.g-small { margin: 0; font: 400 12.5px/1.4 var(--f-ui); color: var(--ink-soft); }
.g-small a, .g-small .link { color: var(--brass); }
.g-small.bad { color: var(--accent); }
.link { border: 0; background: none; padding: 0; cursor: pointer; font: inherit; text-decoration: underline; }
.g-log { flex: 1; overflow-y: auto; padding: 12px 14px; display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 92%; }
.bubble.user { align-self: flex-end; background: var(--ink); color: var(--panel-solid); padding: 8px 12px; border-radius: 14px 14px 4px 14px; font: 500 14px/1.4 var(--f-ui); }
.bubble.user .from { display: block; font: italic 500 12px/1.2 var(--f-note); opacity: .7; margin-bottom: 2px; }
.bubble.assistant { align-self: flex-start; font: 400 16px/1.5 var(--f-note); color: var(--ink); }
.bubble.assistant p { margin: 0 0 8px; }
.bubble.assistant p:last-child { margin-bottom: 0; }
.bubble.assistant strong { font-family: var(--f-ui); font-size: .9em; font-weight: 700; }
.bubble.assistant ul, .bubble.assistant ol { margin: 0 0 8px; padding-left: 20px; }
.action { align-self: flex-start; font: 600 12px/1.2 var(--f-ui); color: var(--brass); padding: 3px 8px; border-radius: 999px; background: var(--chip); }
.typing { display: inline-flex; gap: 4px; padding: 6px 0; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-soft); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; } .typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
.g-starters { display: flex; flex-direction: column; gap: 6px; padding: 0 14px 10px; }
.starter { text-align: left; padding: 8px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-solid); cursor: pointer; font: italic 500 15px/1.3 var(--f-note); color: var(--ink); }
.starter:hover { border-color: var(--accent); }
.g-form { display: flex; gap: 8px; align-items: flex-end; padding: 10px 14px 6px; border-top: 1px solid var(--line); }
.g-form textarea { flex: 1; min-width: 0; resize: none; max-height: 120px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-solid); font: 400 14px/1.4 var(--f-ui); color: var(--ink); }
.g-send { width: 36px; height: 36px; flex: none; border: 0; border-radius: 50%; background: var(--accent); color: var(--on-accent); cursor: pointer; font: 700 16px/1 var(--f-ui); }
.g-send.stop { background: var(--ink); }
.g-model { padding: 0 14px 10px; font-size: 11.5px; }
@media (prefers-reduced-motion: reduce) { .typing i { animation: none; } .art-tile img, .art-pin { transition: none; } }
@media (max-width: 760px) { .guide { right: 14px; width: calc(100vw - 28px); top: auto; height: 60vh; } .fine-row { margin-left: 0; } }

/* ---------- Tutorial ---------- */
.tutorial { position: fixed; inset: 0; z-index: 20; }
.tutorial::before { content: ""; position: absolute; inset: 0; background: var(--scrim); }
.tutorial:has(.tut-spot:not([hidden]))::before { background: none; }
.tut-spot { position: absolute; border-radius: 12px; box-shadow: 0 0 0 9999px var(--scrim), 0 0 0 3px var(--accent); pointer-events: none; transition: all .35s cubic-bezier(.3,.7,.3,1); }
.tut-card { position: absolute; width: min(340px, calc(100vw - 24px)); padding: 16px 18px 14px; transition: left .35s, top .35s; }
.tut-card.center { left: 50% !important; top: 50% !important; transform: translate(-50%, -50%); width: min(420px, calc(100vw - 24px)); padding: 24px 24px 18px; }
.tut-card h2 { margin: 4px 0 6px; font: 800 21px/1.15 var(--f-display); letter-spacing: -.02em; }
.tut-card.center h2 { font-size: 28px; }
.tut-card p { margin: 0 0 14px; font: 400 16.5px/1.45 var(--f-note); color: var(--ink); }
.tut-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.tut-row span { display: flex; gap: 6px; }
.tut-row .link { color: var(--ink-soft); font: 500 13px/1 var(--f-ui); }
.tut-next { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 700; }
.tut-btn { border: 1px solid var(--line); border-radius: 999px; background: none; padding: 4px 10px; cursor: pointer; font: 600 12px/1 var(--f-ui); color: var(--ink); }
.tut-btn:hover { border-color: var(--accent); color: var(--accent); }
@media (prefers-reduced-motion: reduce) { .tut-spot, .tut-card { transition: none; } }

/* ---------- Appearance switch and dark-mode details ---------- */
.maplibregl-ctrl-group button .maplibregl-ctrl-icon, .maplibregl-ctrl-attrib-button { filter: var(--icon-filter); }
.theme-btn { border: 1px solid var(--line); border-radius: 999px; background: none; cursor: pointer; padding: 3px 9px; font: 600 11.5px/1 var(--f-ui); color: var(--ink-soft); display: inline-flex; align-items: center; gap: 5px; }
.theme-btn:hover { color: var(--ink); border-color: var(--ink-soft); }
.theme-btn b { font-size: 13px; line-height: 1; }
.brand-tools { display: flex; align-items: center; gap: 6px; }
.art-pin { border-color: var(--station); }
.place .where { display: block; margin-top: 6px; font: 600 12px/1.3 var(--f-ui); color: var(--ink-soft); }
.place img { max-height: 200px; }
.g-field { display: grid; gap: 4px; margin-bottom: 8px; }
.g-label { font: 600 11px/1 var(--f-ui); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.g-field select { padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-solid); color: var(--ink); font: 500 13.5px/1.2 var(--f-ui); }
.g-note { margin: 0 0 10px !important; font: italic 400 14.5px/1.35 var(--f-note) !important; color: var(--ink-soft); }
.g-keyrow { display: flex; gap: 6px; margin: 4px 0 8px; }
.g-key form { display: block; margin-bottom: 0; }

/* ---------- Search ---------- */
.search { position: relative; margin-top: 6px; }
.search input { width: 100%; padding: 9px 34px 9px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel-solid); color: var(--ink); font: 500 13.5px/1.2 var(--f-ui); }
.search input::placeholder { color: var(--ink-soft); }
.search input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
.search kbd { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); font: 600 11px/1 var(--f-mono); color: var(--ink-soft); border: 1px solid var(--line); border-radius: 4px; padding: 2px 5px; pointer-events: none; }
.search input:focus + kbd { display: none; }
.search-results { position: absolute; z-index: 12; left: 0; right: 0; top: calc(100% + 6px); max-height: 60vh; overflow-y: auto; padding: 6px 0; background: var(--panel-solid); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 14px 34px var(--shadow); }
.sr-group { padding: 8px 12px 4px; font: 600 10.5px/1 var(--f-ui); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); }
.sr-item { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: center; width: 100%; padding: 6px 12px; border: 0; background: none; cursor: pointer; text-align: left; color: var(--ink); }
.sr-item.on, .sr-item:hover { background: var(--hover); }
.sr-item img { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; }
.sr-item .t { display: block; font: 600 13.5px/1.25 var(--f-ui); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-item .s { display: block; font: italic 400 13.5px/1.25 var(--f-note); color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-dot { width: 12px; height: 12px; margin-left: 8px; border-radius: 50%; background: var(--brass); }
.sr-time { background: var(--accent); }
.sr-x { background: var(--ink-soft); }
.sr-loading { padding: 8px 12px; font: italic 400 14px/1.3 var(--f-note); color: var(--ink-soft); }
.sr-more { display: block; width: calc(100% - 24px); margin: 6px 12px 4px; padding: 8px; border: 1px dashed var(--line); border-radius: 8px; background: none; cursor: pointer; font: 600 12.5px/1 var(--f-ui); color: var(--brass); }
.sr-more:hover { border-color: var(--brass); }
.search-pin { display: flex; flex-direction: column; align-items: center; pointer-events: none; filter: drop-shadow(0 3px 6px rgba(0,0,0,.35)); }
.search-pin svg path { fill: var(--accent); stroke: var(--station); stroke-width: 1.6; }
.search-pin svg circle { fill: var(--station); }
.search-pin .sp-label { margin-bottom: 4px; padding: 4px 9px; border-radius: 999px; background: var(--panel-solid); color: var(--ink); font: 700 12px/1.1 var(--f-ui); white-space: nowrap; max-width: 220px; overflow: hidden; text-overflow: ellipsis; box-shadow: 0 2px 8px var(--shadow); }
@media (prefers-reduced-motion: no-preference) { .search-pin > * { animation: pin-drop .5s cubic-bezier(.3,1.4,.5,1); } }
@keyframes pin-drop { from { transform: translateY(-30px); opacity: 0; } to { transform: none; opacity: 1; } }
.place .ai-note { margin: -2px 0 8px; font: italic 500 12.5px/1.3 var(--f-note); color: var(--ink-soft); }