/* nullkit ui: shared components on top of tokens.css. See docs/ui.md.

   Every class starts with ui-, so linking this file changes nothing until markup opts in
   (sites already use bare names like .card and .row for their own things). States use the
   sites' existing .is-* convention. Behaviour (modals, tabs) is in ui.js.

   Knobs, set inline or in site CSS:
     --ui-gap   spacing of .ui-stack / .ui-cluster / .ui-grid / .ui-form
     --ui-min   smallest column of .ui-grid / .ui-form-grid */

/* Sizes below assume border-box; don't rely on the site setting it. */
[class^="ui-"], [class*=" ui-"] { box-sizing: border-box; }

/* ── Layout ─────────────────────────────────────────────────────────────── */

.ui-page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin: 0 0 28px;
}
.ui-title {
  font-family: var(--header-serif);
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin: 0;
}
.ui-lead {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  max-width: 640px;
  margin: 6px 0 0;
}
.ui-section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--header-serif);
  font-size: 18px;
  font-weight: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 18px;
}

.ui-stack { display: flex; flex-direction: column; gap: var(--ui-gap, 16px); }
.ui-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--ui-gap, 8px); }
.ui-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(var(--ui-min, 240px), 100%), 1fr));
  gap: var(--ui-gap, 16px);
}
/* List + detail. One column on phones, list first. */
.ui-split {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr);
  gap: 24px;
  align-items: start;
}
@media (max-width: 760px) {
  .ui-split { grid-template-columns: minmax(0, 1fr); }
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.2;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.ui-btn:hover { border-color: var(--ink); color: var(--ink); text-decoration: none; }
.ui-btn:focus-visible, .ui-btn-icon:focus-visible, .ui-tab:focus-visible, .ui-chip-x:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.ui-btn:disabled, .ui-btn[aria-disabled="true"] { opacity: 0.5; cursor: default; pointer-events: none; }

.ui-btn-primary { color: var(--bg); background: var(--ink); border-color: var(--ink); }
.ui-btn-primary:hover {
  color: var(--bg);
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent) 35%, transparent));
}
.ui-btn-danger { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.ui-btn-danger:hover { color: var(--bg); background: var(--accent); border-color: var(--accent); }
/* The quiet uppercase text button (the sites' .btn-text). */
.ui-btn-ghost {
  padding: 4px 0;
  border: 0;
  font-family: var(--header-serif);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.ui-btn-ghost:hover { color: var(--accent); }
.ui-btn-sm { padding: 4px 10px; font-size: 12px; }
.ui-btn-ghost.ui-btn-sm { padding: 2px 0; }

/* Icon-only: give it an aria-label (and a title for the tooltip). */
.ui-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  flex: 0 0 auto;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}
.ui-btn-icon:hover { color: var(--accent); background: color-mix(in srgb, var(--ink) 6%, transparent); }
.ui-btn-icon svg { width: 18px; height: 18px; }
.ui-btn-icon.ui-btn-sm { width: 24px; height: 24px; padding: 0; }
.ui-btn-icon.ui-btn-sm svg { width: 14px; height: 14px; }

/* ── Cards ──────────────────────────────────────────────────────────────── */

.ui-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 14px 16px;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--corner);
}
a.ui-card, .ui-card.is-link { text-decoration: none; cursor: pointer; transition: border-color 0.15s ease; }
a.ui-card:hover, .ui-card.is-link:hover { border-color: var(--ink); text-decoration: none; color: inherit; }
.ui-card.is-ok   { border-left: 3px solid var(--ok); }
.ui-card.is-warn { border-left: 3px solid var(--warn); }
.ui-card.is-down { border-left: 3px solid var(--down); }

.ui-card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; min-width: 0; }
.ui-card-title {
  margin: 0;
  min-width: 0;
  font-family: var(--header-serif);
  font-size: 14px;
  font-weight: normal;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}
.ui-card-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
/* Edge-to-edge picture at the top of a card: <div class="ui-card-media"><img></div>. */
.ui-card-media {
  margin: -14px -16px 0;
  aspect-ratio: var(--ui-ratio, 4 / 3);
  overflow: hidden;   /* only the picture is clipped, so a card's menus and badges aren't */
  border-radius: calc(var(--corner) - 1px) calc(var(--corner) - 1px) 0 0;
  background: color-mix(in srgb, var(--line) 30%, transparent);
}
.ui-card-media > img, .ui-card-media > video { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ── Lists ──────────────────────────────────────────────────────────────── */

.ui-list { list-style: none; margin: 0; padding: 0; }
.ui-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 10px 0;
  color: inherit;
  border-bottom: 1px solid var(--line);
}
.ui-row:last-child { border-bottom: 0; }
a.ui-row { text-decoration: none; }
a.ui-row:hover { text-decoration: none; color: inherit; }
a.ui-row:hover .ui-row-title { color: var(--accent); }
.ui-row.is-active .ui-row-title { color: var(--accent); }
/* In a card: rows run to the card's edges. */
.ui-card > .ui-list { margin: 0 -16px; }
.ui-card > .ui-list > .ui-row { padding-left: 16px; padding-right: 16px; }

.ui-row-lead { flex: 0 0 auto; display: inline-flex; align-items: center; color: var(--muted); }
.ui-row-main { flex: 1 1 auto; min-width: 0; }
.ui-row-title { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: color 0.15s ease; }
.ui-row-sub { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 13px; }
.ui-row-meta { flex: 0 0 auto; color: var(--muted); font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.ui-row-actions { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 2px; }

/* ── Tables ─────────────────────────────────────────────────────────────── */

.ui-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ui-table th {
  text-align: left;
  padding: 0 12px 8px 0;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: normal;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.ui-table td { padding: 8px 12px 8px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
.ui-table tbody tr:last-child td { border-bottom: 0; }
.ui-table .is-num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
/* Wide tables scroll inside their own box instead of the page. */
.ui-table-wrap { overflow-x: auto; }

/* ── Chips, status dots ─────────────────────────────────────────────────── */

.ui-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
}
button.ui-chip, a.ui-chip { cursor: pointer; text-decoration: none; transition: border-color 0.15s ease, color 0.15s ease; }
button.ui-chip:hover, a.ui-chip:hover { border-color: var(--ink); color: var(--ink); text-decoration: none; }
.ui-chip.is-active { color: var(--bg); background: var(--ink); border-color: var(--ink); }
.ui-chip.is-accent { color: var(--accent); border-color: var(--accent); }
.ui-chip.is-ok   { color: var(--ok);   border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); }
.ui-chip.is-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--line)); }
.ui-chip.is-down { color: var(--down); border-color: color-mix(in srgb, var(--down) 45%, var(--line)); }
/* The remove button inside a chip: <button class="ui-chip-x" aria-label="Remove">×</button>. */
.ui-chip-x {
  margin: 0 -4px 0 0;
  padding: 0 2px;
  font: inherit;
  line-height: 1;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  opacity: 0.7;
}
.ui-chip-x:hover { opacity: 1; color: var(--accent); }

.ui-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--muted);
}
.ui-dot.is-ok   { background: var(--ok); }
.ui-dot.is-warn { background: var(--warn); }
.ui-dot.is-down { background: var(--down); }
.ui-chip > .ui-dot { width: 7px; height: 7px; }

/* ── Tabs (ui.js wires up [data-ui-tabs]) ───────────────────────────────── */

.ui-tabs { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 20px; border-bottom: 1px solid var(--line); }
.ui-tab {
  margin-bottom: -1px;
  padding: 8px 14px;
  font-family: var(--header-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.ui-tab:hover { color: var(--ink); text-decoration: none; }
.ui-tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Segmented control (a view switch: cards / list / ...) ─────────────── */
/* <div class="ui-seg" role="group" aria-label="View">
     <button class="ui-seg-btn is-active" aria-pressed="true" aria-label="Cards"><svg>…</svg></button>
     <button class="ui-seg-btn" aria-pressed="false" aria-label="List">…</button></div>
   The page's script switches .is-active (and aria-pressed); text works as well as icons. */
.ui-seg {
  display: inline-flex;
  flex: 0 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.ui-seg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 36px;
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  background: var(--card);
  border: 0;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}
.ui-seg-btn + .ui-seg-btn { border-left: 1px solid var(--line); }
.ui-seg-btn:hover { color: var(--ink); }
.ui-seg-btn.is-active { color: var(--bg); background: var(--ink); }
.ui-seg-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ui-seg-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.ui-seg-btn svg { width: 18px; height: 18px; }

/* ── Empty state ────────────────────────────────────────────────────────── */

.ui-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 40px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}
.ui-empty > p { margin: 0; max-width: 46ch; }
.ui-empty svg { width: 32px; height: 32px; opacity: 0.6; }
/* Inside a card or table cell: smaller, left-aligned. */
.ui-empty.is-inline { display: block; padding: 16px 0; text-align: left; font-size: 14px; }
/* `hidden` must win over the display above (pages toggle empty states with it). */
.ui-empty[hidden] { display: none; }

/* ── Modal (native <dialog class="ui-modal">, opened by ui.js) ─────────── */

.ui-modal {
  width: 100%;
  max-width: min(560px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  padding: 22px 26px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--corner);
  overflow: auto;
}
.ui-modal.is-wide { max-width: min(880px, calc(100vw - 32px)); }
.ui-modal::backdrop { background: rgba(0, 0, 0, 0.45); }
.ui-modal-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 4px;
  font-family: var(--header-serif);
  font-size: 18px;
  font-weight: normal;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ui-modal-sub { margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.ui-modal-actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 20px; }
@media (max-width: 600px) {
  .ui-modal { padding: 18px 16px; }
}

/* ── Forms ──────────────────────────────────────────────────────────────── */

.ui-form { display: flex; flex-direction: column; gap: var(--ui-gap, 14px); }
.ui-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(var(--ui-min, 180px), 100%), 1fr));
  gap: var(--ui-gap, 12px);
  align-items: start;
}
.ui-form-grid > .is-wide { grid-column: 1 / -1; }

.ui-field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.ui-label { color: var(--muted); font-size: 12px; letter-spacing: 0.02em; }
.ui-input {
  padding: 9px 12px;
  font-family: var(--serif);
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  outline: none;
}
.ui-input:focus { border-color: var(--ink); }
/* In a field it fills the column; on its own (a toolbar filter) it keeps its natural or
   size= width. */
.ui-field .ui-input { width: 100%; }
.ui-input:disabled { opacity: 0.6; }
textarea.ui-input { min-height: 80px; resize: vertical; line-height: 1.5; }
.ui-hint { color: var(--muted); font-size: 12px; }
.ui-error { color: var(--accent); font-family: var(--mono); font-size: 12px; }
.ui-field.is-invalid .ui-input { border-color: var(--accent); }
/* A checkbox or radio with its label on one line. */
.ui-check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }

/* ── Menus (dropdowns: data-ui-menu in ui.js) ───────────────────────────── */

.ui-menu { position: relative; display: inline-flex; }
.ui-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 60;
  min-width: 200px;
  padding: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}
.ui-menu-panel[hidden] { display: none; }
.ui-menu-panel.is-start { right: auto; left: 0; }
.ui-menu-divider { height: 1px; margin: 6px 4px; background: var(--line); }

/* ── Lightbox (NullkitUI.lightbox) ──────────────────────────────────────── */

html.ui-lightbox-lock, html.ui-lightbox-lock body { overflow: hidden; }
.ui-lightbox { position: fixed; inset: 0; z-index: 1000; display: none; }
.ui-lightbox.is-open { display: block; }
.ui-lightbox-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.9); }
.ui-lightbox-img {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  max-width: 92vw;
  max-height: 92dvh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  transform: translate(-50%, -50%);
}
.ui-lightbox-btn {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}
.ui-lightbox-btn svg { width: 24px; height: 24px; }
.ui-lightbox-btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.ui-lightbox-prev, .ui-lightbox-next { top: 50%; transform: translateY(-50%); }
.ui-lightbox-prev { left: 16px; }
.ui-lightbox-next { right: 16px; }
.ui-lightbox-close { top: 16px; right: 16px; }