/* Shared components. Loads after tokens.css; values come from tokens only.
   .app-bar, .tabs, .back-link and .empty-panel are scoped to .ui while a page still
   carries its own rules under those names. Page-wide button and input rules skip .ui. */

@font-face {
  font-family: 'Work Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('assets/fonts/WorkSans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Work Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('assets/fonts/WorkSans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --brand: var(--stage-5);
  --focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--action);
  --target: 44px;
  /* Layers scaled while pages keep their own z-index values (up to 19500). */
  --z-ui-sheet: calc(var(--z-sheet) * 1000);
  --z-ui-toast: calc(var(--z-toast) * 1000);
}
@media (min-width: 600px) and (pointer: fine) {
  :root { --target: 36px; }
}

.ui { font-family: var(--ui-face); font-size: var(--t14); line-height: 1.45; color: var(--text); font-variant-numeric: tabular-nums; }
.ui *, .ui *::before, .ui *::after { box-sizing: border-box; }
.ui [hidden] { display: none !important; }
.ui :focus-visible { outline: none; box-shadow: var(--focus-ring); }
.ui .sheet:focus-visible { box-shadow: var(--shadow-3); }

.ico { width: var(--icon); height: var(--icon); flex: 0 0 auto; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  min-height: var(--target); padding: 0 var(--s4); margin: 0;
  border: 1px solid var(--border-control); border-radius: var(--r-ctl);
  background: transparent; color: var(--text);
  font: 600 var(--t14)/1.2 var(--ui-face); text-decoration: none; text-align: center;
  cursor: pointer; -webkit-tap-highlight-color: transparent;
}
/* A filled button keeps its fill on hover; the 8% tint would leave dark text on the page background. */
.btn:not(.primary, .danger):hover:not(:disabled) { background: var(--selected-fill); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary { background: var(--action); border-color: var(--action); color: var(--on-fill); }
.btn.danger { background: var(--warn-high); border-color: var(--warn-high); color: var(--on-fill); }
.btn.primary:hover:not(:disabled), .btn.danger:hover:not(:disabled) { filter: brightness(1.08); }
.btn.ghost { border-color: transparent; }
.btn.block { width: 100%; }
.btn.icon { width: 44px; height: 44px; min-height: 0; padding: 0; border-color: transparent; }
.btn.icon .ico { width: 20px; height: 20px; }
.btn[aria-pressed="true"] { border-color: var(--action); box-shadow: inset 0 0 0 1px var(--action); background: var(--selected-fill); }
.btn.btn-log { min-height: 36px; }
/* A whole list row or section head that acts as one target. */
.row-btn { display: flex; align-items: center; gap: var(--s2); width: 100%; min-height: 44px; padding: 0; margin: 0; background: transparent; border: 0; color: inherit; font: inherit; text-align: left; cursor: pointer; }
/* Dialog and popover actions: Cancel and the primary share one width in .pair; a ghost Reset or Delete leads the row. */
.action-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s2); }
.action-row > .btn { flex: 0 0 auto; }
.action-row > .pair { flex: 1 1 14em; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s2); }
@media (max-width: 599px), (pointer: coarse) { .btn.btn-log { min-height: 44px; } }

/* Fields */
.field { display: flex; flex-direction: column; gap: var(--s1); min-width: 0; }
.field > label, .field > .label { font-size: var(--t12); font-weight: 500; color: var(--text-dim); }
.field input, .field select, .field textarea {
  min-height: 44px; width: 100%; padding: 0 var(--s3); margin: 0;
  background: var(--bg-input); color: var(--text);
  border: 1px solid var(--border-control); border-radius: var(--r-ctl);
  font: 400 var(--t14)/1.3 var(--ui-face);
}
.field textarea { padding: var(--s2) var(--s3); min-height: 120px; resize: vertical; font-family: var(--mono); font-size: var(--t12); line-height: 1.5; }
.field input[type="number"] { min-width: 6ch; width: auto; }
.field input::placeholder { color: var(--text-dim); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--action); }
.field .select { position: relative; display: block; }
.field .select select { appearance: none; -webkit-appearance: none; padding-right: 36px; }
.field .select::after {
  content: ""; position: absolute; right: var(--s3); top: 50%; width: var(--icon); height: var(--icon); margin-top: -8px;
  background: var(--text-dim); pointer-events: none;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") center / contain no-repeat;
}
.field select option { background: var(--bg-raised); color: var(--text); }
/* Range: the track and thumb carry the look; the 44 px box is the target. */
.field input[type="range"] { -webkit-appearance: none; appearance: none; min-height: 44px; padding: 0; background: transparent; border: 0; cursor: pointer; }
.field input[type="range"]::-webkit-slider-runnable-track { height: 4px; background: var(--border-control); border-radius: 3px; }
.field input[type="range"]::-moz-range-track { height: 4px; background: var(--border-control); border-radius: 3px; }
.field input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%; background: var(--action); border: 2px solid var(--bg); }
.field input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--action); border: 2px solid var(--bg); }
.field input[type="range"]:focus-visible { box-shadow: none; }
.field input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: var(--focus-ring); }
/* Touch screens get 16 px so a phone does not zoom on focus; 14 px elsewhere. */
@media (pointer: coarse) { .field input, .field select, .field textarea { font-size: var(--t16); } }

/* Read-only value with a Copy button */
.field-copy .row { display: flex; flex-wrap: wrap; gap: var(--s2); align-items: stretch; }
.field-copy .row input, .field-copy .row textarea { flex: 1 1 160px; min-width: 0; font-family: var(--mono); }
.field-copy .row .btn { flex: 0 0 auto; }
.field-copy.multiline .row { flex-direction: column; }

/* Toggle: the whole row is the switch */
.toggle {
  display: flex; align-items: center; gap: var(--s3); width: 100%; min-height: 48px;
  padding: var(--s2) 0; margin: 0; background: transparent; border: 0; color: var(--text);
  font: inherit; text-align: left; cursor: pointer;
}
.toggle .txt { flex: 1; min-width: 0; }
.toggle .txt .t { display: block; font-weight: 600; }
.toggle .txt .d { display: block; font-size: var(--t12); color: var(--text-dim); }
.toggle .track { position: relative; flex: 0 0 auto; width: 44px; height: 24px; border-radius: var(--r-pill); border: 1px solid var(--border-control); background: var(--bg-input); }
.toggle .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--text-dim); }
.toggle[aria-checked="true"] .track { background: var(--action); border-color: var(--action); }
.toggle[aria-checked="true"] .track::after { left: 23px; background: var(--on-fill); }

/* Segmented: data modes */
.segmented { display: flex; flex-wrap: wrap; gap: var(--s2); }
.segmented > button {
  flex: 1 1 0; min-width: min-content; min-height: var(--target); padding: 0 var(--s3); margin: 0; border-radius: var(--r-ctl);
  background: transparent; border: 1px solid var(--border-control); color: var(--text);
  font: 500 var(--t14)/1.2 var(--ui-face); cursor: pointer;
}
.segmented > button[aria-pressed="true"] { border-color: var(--action); box-shadow: inset 0 0 0 1px var(--action); background: var(--selected-fill); font-weight: 600; }

/* Tabs: navigation; scrolls sideways with edge fades (ui.js sets fade-l and fade-r) */
.ui .tabs { display: flex; overflow-x: auto; scrollbar-width: none; border-bottom: 1px solid var(--border); padding: 0 var(--s2); }
.ui .tabs::-webkit-scrollbar { display: none; }
.ui .tabs > a, .ui .tabs > button {
  flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; min-width: 44px; padding: 0 var(--s3); margin: 0;
  background: transparent; border: 0; border-bottom: 2px solid transparent; border-radius: 0;
  color: var(--text-dim); font: 500 var(--t14)/1.2 var(--ui-face); text-decoration: none; cursor: pointer;
}
.ui .tabs > [aria-current="page"], .ui .tabs > [aria-selected="true"] { color: var(--text); border-bottom-color: var(--action); font-weight: 600; }
.ui .tabs.fade-r { -webkit-mask-image: linear-gradient(to right, black calc(100% - 48px), transparent); mask-image: linear-gradient(to right, black calc(100% - 48px), transparent); }
.ui .tabs.fade-l { -webkit-mask-image: linear-gradient(to right, transparent, black 48px); mask-image: linear-gradient(to right, transparent, black 48px); }
.ui .tabs.fade-l.fade-r { -webkit-mask-image: linear-gradient(to right, transparent, black 48px, black calc(100% - 48px), transparent); mask-image: linear-gradient(to right, transparent, black 48px, black calc(100% - 48px), transparent); }

/* Card */
.card { background: var(--bg-raised); border: 1px solid var(--border); border-radius: var(--r-card); padding: var(--s4); }
.card.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(112px, 1fr)); gap: var(--s3) var(--s4); }
.card.stats .k { display: block; font-size: var(--t12); color: var(--text-dim); }
.card.stats .v { display: block; font-size: var(--t20); font-weight: 600; color: var(--text); }

/* Badge, chips */
.badge { display: inline-flex; align-items: center; gap: var(--s1); min-height: 20px; padding: 0 var(--s2); border: 1px solid var(--border-control); border-radius: var(--r-pill); font-size: var(--t12); font-weight: 600; color: var(--text); white-space: nowrap; }
.chip {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s1);
  min-height: var(--target); padding: 0 var(--s3); margin: 0;
  background: transparent; border: 1px solid var(--border-control); border-radius: var(--r-ctl);
  color: var(--text); font: 500 var(--t14)/1.2 var(--ui-face); cursor: pointer;
}
.chip[aria-pressed="true"] { border-color: var(--action); box-shadow: inset 0 0 0 1px var(--action); background: var(--selected-fill); font-weight: 600; }
.chip-removable { display: inline-flex; align-items: center; min-height: var(--target); padding-left: var(--s3); border: 1px solid var(--border-control); border-radius: var(--r-ctl); color: var(--text); font-size: var(--t14); }
.chip-removable > button { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 100%; min-height: inherit; padding: 0; margin: 0; background: transparent; border: 0; color: var(--text-dim); cursor: pointer; border-radius: var(--r-ctl); }
.chip-row { display: grid; grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); gap: var(--s2); }

/* Menu and popover */
.menu { display: flex; flex-direction: column; min-width: 180px; padding: var(--s1); background: var(--bg-raised); border: 1px solid var(--border-control); border-radius: var(--r-menu); box-shadow: var(--shadow-2); z-index: var(--z-menu); }
.menu > [role="menuitem"], .menu > button, .menu > a {
  display: flex; align-items: center; gap: var(--s2); min-height: var(--target); padding: 0 var(--s3); margin: 0;
  background: transparent; border: 0; border-radius: var(--r-ctl); color: var(--text);
  font: 500 var(--t14)/1.2 var(--ui-face); text-align: left; text-decoration: none; cursor: pointer;
}
/* Items only: a group label or a field group inside a menu does not tint on hover. */
.menu > :is(button, a, label, [role^="menuitem"]):hover, .menu > :focus-visible { background: var(--selected-fill); }
.menu > .danger { color: var(--warn-high); }
.menu > label { display: flex; align-items: center; gap: var(--s3); min-height: var(--target); padding: var(--s1) var(--s3); border-radius: var(--r-ctl); color: var(--text); font-size: var(--t14); cursor: pointer; user-select: none; }
/* The one checkbox for every page: drawn, never the browser's tinted box (unreadable on light --action). Switches are .toggle buttons, never a checkbox. */
input[type="checkbox"] {
  -webkit-appearance: none; appearance: none; display: inline-grid; place-content: center;
  width: 18px; height: 18px; margin: 0; flex: 0 0 auto;
  background: transparent; border: 2px solid var(--text-dim); border-radius: 3px; cursor: pointer;
}
input[type="checkbox"]::after {
  content: ""; width: 12px; height: 12px; background: var(--on-fill); visibility: hidden;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / contain no-repeat;
}
input[type="checkbox"]:checked { background: var(--action); border-color: var(--action); }
input[type="checkbox"]:checked::after { visibility: visible; }
/* A capped menu scrolls; its rows keep their height when text wraps. */
.menu > * { flex-shrink: 0; }
.menu > [role="separator"] { flex: 0 0 1px; height: 1px; margin: var(--s1) 0; background: var(--border); }
.popover { position: absolute; z-index: var(--z-menu); padding: var(--s4); background: var(--bg-raised); border: 1px solid var(--border-control); border-radius: var(--r-menu); box-shadow: var(--shadow-2); }

/* Sheet: bottom sheet under 600 px, centred dialog above */
.sheet-root { position: fixed; inset: 0; z-index: var(--z-ui-sheet); display: flex; align-items: flex-end; justify-content: center; }
.sheet-scrim { position: absolute; inset: 0; background: var(--scrim); }
.sheet {
  position: relative; display: flex; flex-direction: column; width: 100%; max-height: calc(100% - 48px);
  background: var(--bg-raised); border-top: 1px solid var(--border-control); border-radius: 16px 16px 0 0;
  box-shadow: var(--shadow-3); padding-bottom: env(safe-area-inset-bottom, 0);
}
.sheet .grab { width: 32px; height: 4px; border-radius: 2px; background: var(--border-control); margin: var(--s2) auto 0; flex: 0 0 auto; }
.sheet-head { display: flex; align-items: center; gap: var(--s2); min-height: 52px; padding: 0 var(--s1) 0 var(--s4); flex: 0 0 auto; }
.sheet-head h2 { flex: 1; min-width: 0; margin: 0; font-size: var(--t20); font-weight: 600; line-height: 1.25; color: var(--text); }
.sheet-body { flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 0 var(--s4) var(--s4); }
.sheet-foot { display: flex; flex-wrap: wrap; gap: var(--s2); padding: var(--s3) var(--s4) var(--s4); border-top: 1px solid var(--border); flex: 0 0 auto; }
.sheet-foot .btn { flex: 1 1 140px; }
.sheet-body p { margin: 0 0 var(--s3); color: var(--text); }
.sheet-body .dim { color: var(--text-dim); font-size: var(--t12); }
@media (min-width: 600px) {
  .sheet-root { align-items: center; padding: var(--s5); }
  .sheet { max-width: 560px; max-height: calc(100% - 48px); border: 1px solid var(--border-control); border-radius: var(--r-card); padding-bottom: 0; }
  .sheet .grab { display: none; }
  .sheet-head { padding-top: var(--s2); }
}
html.ui-locked, html.ui-locked body { overflow: hidden; }

/* Inline confirm */
.confirm { grid-column: 1 / -1; display: flex; flex-direction: column; gap: var(--s3); margin: var(--s2) 0; padding: var(--s3) var(--s4); background: var(--bg-raised); border: 1px solid var(--border-control); border-radius: var(--r-menu); text-align: left; }
.confirm.danger { border-color: var(--warn-high); }
.confirm .title { margin: 0; font-size: var(--t14); font-weight: 600; color: var(--text); }
.confirm .text { margin: 0; font-size: var(--t14); color: var(--text); }
.confirm .actions { display: flex; flex-wrap: wrap; gap: var(--s2); }
.confirm .actions .btn { flex: 1 1 120px; }

/* Notice: info, warning, error */
.notice { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--s3); position: relative; padding: var(--s3) var(--s2) var(--s3) 44px; background: var(--bg-raised); border: 1px solid var(--border-control); border-left-width: 4px; border-radius: var(--r-menu); color: var(--text); font-size: var(--t14); line-height: 1.45; text-align: left; }
.notice.warning { border-left-color: var(--reconnecting); }
.notice.error { border-left-color: var(--warn-high); }
.notice > .ico { position: absolute; left: var(--s4); top: 15px; color: var(--text-dim); }
.notice.warning > .ico { color: var(--reconnecting); }
.notice.error > .ico { color: var(--warn-high); }
.notice .msg { flex: 1 1 14em; min-width: 0; padding-top: 1px; overflow-wrap: anywhere; }
.notice .msg a { color: var(--text); text-decoration: underline; }
.notice .acts { display: flex; align-items: center; gap: var(--s1); margin: -8px 0 -8px auto; flex: 0 0 auto; }
/* A narrow notice wraps its actions onto their own line; the pull-in margins would sit them on the border. */
.notice { container-type: inline-size; }
@container (max-width: 440px) { .notice .acts { margin: 0 0 0 auto; } }
.notice .acts .btn:not(.icon) { min-height: 44px; }
.notice.bar { border-radius: 0; border-width: 0 0 1px 4px; }
/* A bar notice is one row: message left, actions right, never stacked (demo banner at 360, Khal 2026-10-12). */
.notice.bar { flex-wrap: nowrap; align-items: center; padding-top: var(--s2); padding-bottom: var(--s2); }
.notice.bar .msg { flex: 1 1 auto; padding-top: 0; }
.notice.bar .acts { margin: 0 0 0 auto; }
.notice.bar > .ico { top: 50%; transform: translateY(-50%); }
.notice.bar:not(.warning):not(.error) { border-left-width: 0; }
.notice-stack { position: fixed; top: var(--s2); left: var(--s2); right: var(--s2); z-index: var(--z-ui-toast); display: flex; flex-direction: column; align-items: center; gap: var(--s2); pointer-events: none; }
.notice-stack .notice { width: 100%; max-width: 560px; pointer-events: auto; box-shadow: var(--shadow-3); }

/* Toast with an Undo slot */
.toast-host { position: fixed; left: var(--s4); right: var(--s4); bottom: calc(var(--s4) + env(safe-area-inset-bottom, 0)); z-index: var(--z-ui-toast); display: flex; justify-content: center; pointer-events: none; }
.toast { position: relative; display: flex; align-items: center; gap: var(--s3); width: 100%; max-width: 480px; min-height: 48px; padding: 0 var(--s2) 0 var(--s4); background: var(--bg-input); border: 1px solid var(--border-control); border-radius: var(--r-menu); box-shadow: var(--shadow-3); color: var(--text); font-size: var(--t14); pointer-events: auto; overflow: hidden; }
.toast .grow { flex: 1; min-width: 0; }
.toast .undo { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 var(--s3); margin: 0; background: transparent; border: 0; color: var(--action); font: 600 var(--t14)/1 var(--ui-face); cursor: pointer; }

/* Layout pieces */
.ui .app-bar { display: flex; align-items: center; gap: var(--s2); min-height: 56px; padding: 0 var(--s2) 0 var(--s4); background: var(--bg); border-bottom: 1px solid var(--border); }
.status-line { padding: var(--s2) var(--s4) 0; }
.status-line .state { font-size: var(--t14); font-weight: 600; color: var(--text); }
.status-line .sub { margin-top: 2px; font-size: var(--t12); color: var(--text-dim); }
.ui .back-link { display: inline-flex; align-items: center; gap: var(--s1); min-height: 44px; padding: 0 var(--s2) 0 0; color: var(--text); font-weight: 500; text-decoration: none; }
.ui .empty-panel { max-width: 420px; margin: var(--s7) auto; padding: var(--s5); text-align: center; background: var(--bg-raised); border: 1px solid var(--border); border-radius: var(--r-card); }
.ui .empty-panel h2 { margin: 0 0 var(--s2); font-size: var(--t20); }
.ui .empty-panel p { margin: 0 0 var(--s4); color: var(--text-dim); }
.beta-pill { display: inline-flex; align-items: center; min-height: 20px; padding: 0 var(--s2); border: 1px solid var(--border-control); border-radius: var(--r-pill); background: transparent; color: var(--text-dim); font: 600 var(--t12)/1 var(--ui-face); letter-spacing: 0; white-space: nowrap; }

/* Colour strip on a rounded card: the outer edge follows the card's corner, the inner edge is straight.
   Set --strip-c (and optionally --strip-w) on the element. */
.strip { position: relative; overflow: hidden; border-left-color: var(--strip-c, var(--border)); }
.strip::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: calc(var(--strip-w, 4px) - 1px); background: var(--strip-c, var(--border)); pointer-events: none; }

/* No widows: a paragraph never ends with one word alone on its last line (Khal 2026-10-12). Headings balance. */
p, li, figcaption, summary, dd, blockquote, .lede { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }