/* Reusable UI pieces: buttons, cards, chips, inputs, progress, modal, toast. */

/* -------------------------------------------------------------- buttons */
.btn {
  --btn-bg: var(--surface);
  --btn-fg: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.7rem 1.25rem;
  border: var(--bw) solid var(--edge-strong);
  border-radius: var(--r);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 750;
  font-size: var(--fs-md);
  line-height: 1.1;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 3px 3px 0 var(--drop);
  transition: transform 0.09s ease, box-shadow 0.09s ease, background-color 0.15s ease, opacity 0.15s ease;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--drop); }
.btn:active, .btn.is-pressed { transform: translate(3px, 3px); box-shadow: 0 0 0 var(--drop); }
.btn[disabled], .btn.is-disabled {
  opacity: 0.45;
  pointer-events: none;
  box-shadow: 3px 3px 0 var(--drop);
}
.btn svg { flex: none; }

.btn-primary { --btn-bg: var(--brand); --btn-fg: var(--on-color); }
.btn-success { --btn-bg: var(--green); --btn-fg: var(--on-color); }
.btn-danger { --btn-bg: var(--red); --btn-fg: var(--on-color); }
.btn-violet { --btn-bg: var(--violet); --btn-fg: var(--on-color); }
.btn-blue { --btn-bg: var(--blue); --btn-fg: var(--on-color); }
.btn-ink { --btn-bg: var(--ink); --btn-fg: var(--paper); }
:root[data-theme='dark'] .btn:not(.btn-primary):not(.btn-success):not(.btn-danger):not(.btn-violet):not(.btn-blue):not(.btn-ink):not(.btn-ghost) {
  border-color: var(--edge);
}

.btn-ghost {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}
.btn-ghost:hover { background: var(--sunken); transform: none; box-shadow: none; }
.btn-ghost:active { transform: scale(0.97); box-shadow: none; }
.btn-ghost[disabled] { box-shadow: none; }

.btn-lg { min-height: 56px; padding: 0.9rem 1.6rem; font-size: var(--fs-lg); border-radius: 14px; }
.btn-sm { min-height: 36px; padding: 0.4rem 0.8rem; font-size: var(--fs-sm); border-radius: 10px; box-shadow: 2px 2px 0 var(--drop); }
.btn-sm:hover { box-shadow: 3px 3px 0 var(--drop); }
.btn-sm:active { transform: translate(2px, 2px); }
.btn-block { width: 100%; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px; height: 44px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--ink-2);
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
  -webkit-tap-highlight-color: transparent;
}
.icon-btn:hover { background: var(--sunken); color: var(--ink); }
.icon-btn:active { transform: scale(0.92); }

.link-btn {
  background: none;
  border: 0;
  padding: 0;
  color: var(--blue-text);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------------------------------------------------------------- cards */
.card {
  background: var(--surface);
  border: var(--bw) solid var(--edge);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}
.card-pad { padding: var(--s5); }
a.card, button.card { display: block; width: 100%; text-align: left; color: inherit; text-decoration: none; }
.card-link { transition: transform 0.12s ease, box-shadow 0.12s ease; -webkit-tap-highlight-color: transparent; }
.card-link:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.card-link:active { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--drop); }

.panel {
  background: var(--surface);
  border: var(--bw) solid var(--hair);
  border-radius: var(--r-lg);
  padding: var(--s5);
}
.panel-sunken { background: var(--sunken); border-color: transparent; }

/* ---------------------------------------------------------- chips, pills */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: var(--sunken);
  color: var(--ink-2);
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}
.chip svg { flex: none; }
.chip-outline { background: transparent; border: var(--bw) solid var(--hair); }
.chip-blue { background: var(--blue-soft); color: var(--blue-text); }
.chip-green { background: var(--green-soft); color: var(--green-text); }
.chip-orange { background: var(--orange-soft); color: var(--orange-text); }
.chip-violet { background: var(--violet-soft); color: var(--violet-text); }
.chip-teal { background: var(--teal-soft); color: var(--teal-text); }
.chip-pink { background: var(--pink-soft); color: var(--pink-text); }
.chip-red { background: var(--red-soft); color: var(--red-text); }
.chip-yellow { background: var(--yellow-soft); color: var(--yellow-text); }

/* filter chips (toggle buttons) */
.filter {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 40px;
  padding: 0.35rem 0.9rem;
  border: var(--bw) solid var(--edge);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 700;
  font-size: var(--fs-sm);
  transition: background-color 0.15s ease, transform 0.1s ease;
  -webkit-tap-highlight-color: transparent;
}
.filter:hover { background: var(--sunken); }
.filter:active { transform: scale(0.96); }
.filter[aria-pressed='true'], .filter.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* colour helpers for accents: set --accent + friends from a hue name */
.hue-blue { --accent: var(--blue); --accent-soft: var(--blue-soft); --accent-text: var(--blue-text); }
.hue-green { --accent: var(--green); --accent-soft: var(--green-soft); --accent-text: var(--green-text); }
.hue-orange { --accent: var(--orange); --accent-soft: var(--orange-soft); --accent-text: var(--orange-text); }
.hue-violet { --accent: var(--violet); --accent-soft: var(--violet-soft); --accent-text: var(--violet-text); }
.hue-teal { --accent: var(--teal); --accent-soft: var(--teal-soft); --accent-text: var(--teal-text); }
.hue-pink { --accent: var(--pink); --accent-soft: var(--pink-soft); --accent-text: var(--pink-text); }
.hue-red { --accent: var(--red); --accent-soft: var(--red-soft); --accent-text: var(--red-text); }
.hue-yellow { --accent: var(--yellow); --accent-soft: var(--yellow-soft); --accent-text: var(--yellow-text); }
.hue-gray { --accent: var(--gray); --accent-soft: var(--gray-soft); --accent-text: var(--gray-text); }

/* ------------------------------------------------------------- progress */
.bar {
  height: 12px;
  border-radius: 999px;
  background: var(--sunken);
  border: var(--bw) solid var(--edge);
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  width: calc(var(--pct, 0) * 100%);
  background: var(--accent, var(--brand));
  border-radius: 999px;
  transition: width 0.5s var(--ease-out);
}
.bar-thin { height: 8px; border-width: 0; background: var(--hair); }

.ring { position: relative; display: inline-grid; place-items: center; }
.ring svg { transform: rotate(-90deg); }
.ring .ring-track { stroke: var(--hair); }
.ring .ring-fill { stroke: var(--accent, var(--brand)); transition: stroke-dashoffset 0.7s var(--ease-out); }
.ring .ring-label { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }

/* ---------------------------------------------------------------- forms */
.input, .select, .textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.6rem 0.9rem;
  border: var(--bw) solid var(--edge);
  border-radius: var(--r);
  background: var(--surface);
  color: var(--ink);
  font-size: var(--fs-md);
  transition: box-shadow 0.12s ease, border-color 0.12s ease;
}
.input::placeholder, .textarea::placeholder { color: var(--ink-3); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px rgba(63, 140, 255, 0.3); }
.textarea { min-height: 96px; resize: vertical; line-height: 1.5; }
.label { display: block; font-weight: 700; margin-bottom: var(--s2); }
.field + .field { margin-top: var(--s4); }
.field-hint { font-size: var(--fs-sm); color: var(--ink-3); margin-top: var(--s1); }

.switch {
  position: relative;
  display: inline-block;
  width: 52px; height: 30px;
  flex: none;
}
.switch input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; z-index: 1; }
.switch-track {
  position: absolute; inset: 0;
  border: var(--bw) solid var(--edge);
  border-radius: 999px;
  background: var(--sunken);
  transition: background-color 0.2s ease;
}
.switch-track::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--ink-3);
  transition: transform 0.2s var(--ease-spring), background-color 0.2s ease;
}
.switch input:checked + .switch-track { background: var(--green); border-color: var(--edge-strong); }
.switch input:checked + .switch-track::after { transform: translateX(22px); background: #1D1B26; }
.switch input:focus-visible + .switch-track { outline: 3px solid var(--focus); outline-offset: 2px; }

.segmented {
  display: inline-flex;
  padding: 3px;
  border: var(--bw) solid var(--edge);
  border-radius: 14px;
  background: var(--sunken);
  gap: 2px;
  max-width: 100%;
  flex-wrap: wrap;
}
.segmented button {
  min-height: 38px;
  padding: 0.3rem 0.85rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--ink-2);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.segmented button[aria-pressed='true'] { background: var(--surface); color: var(--ink); box-shadow: 0 0 0 2px var(--edge); }
.segmented button:disabled { cursor: default; }
.segmented button:disabled:not([aria-pressed='true']) { opacity: 0.55; }

/* styled range input (also used by widgets) */
.range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 28px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  touch-action: pan-y;
}
.range::-webkit-slider-runnable-track {
  height: 10px;
  border-radius: 999px;
  border: var(--bw) solid var(--edge);
  background: linear-gradient(to right, var(--accent, var(--brand)) var(--fill, 50%), var(--sunken) var(--fill, 50%));
}
.range::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  border: var(--bw) solid var(--edge);
  background: var(--sunken);
}
.range::-moz-range-progress { height: 6px; border-radius: 999px; background: var(--accent, var(--brand)); }
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px; height: 26px;
  margin-top: -10px;
  border-radius: 50%;
  border: var(--bw) solid var(--edge-strong);
  background: var(--surface);
  box-shadow: 2px 2px 0 var(--drop);
  transition: transform 0.1s ease;
}
.range::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: var(--bw) solid var(--edge-strong);
  background: var(--surface);
  box-shadow: 2px 2px 0 var(--drop);
}
.range:active::-webkit-slider-thumb { transform: scale(1.12); }
.range:focus-visible { outline: none; }
.range:focus-visible::-webkit-slider-thumb { outline: 3px solid var(--focus); outline-offset: 2px; }
.range:focus-visible::-moz-range-thumb { outline: 3px solid var(--focus); outline-offset: 2px; }
:root[data-theme='dark'] .range::-webkit-slider-thumb { background: var(--ink); }
:root[data-theme='dark'] .range::-moz-range-thumb { background: var(--ink); }

/* ---------------------------------------------------------------- modal */
.modal-scrim {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: grid;
  place-items: center;
  padding: var(--s4);
  background: var(--scrim);
  animation: fade-in 0.2s ease both;
  overflow-y: auto;
}
.modal {
  width: min(480px, 100%);
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  background: var(--surface);
  border: var(--bw) solid var(--edge);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--s6);
  animation: pop-in 0.3s var(--ease-spring) both;
}
.modal-wide { width: min(640px, 100%); }
.modal h2 { font-size: var(--fs-xl); }
.modal-actions { display: flex; gap: var(--s3); justify-content: flex-end; flex-wrap: wrap; margin-top: var(--s6); }

/* ---------------------------------------------------------------- toast */
#toast-root {
  position: fixed;
  left: 50%;
  bottom: calc(var(--tabbar-h) + 16px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  z-index: 800;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
  pointer-events: none;
  width: min(440px, calc(100vw - 2rem));
}
@media (min-width: 960px) { #toast-root { bottom: 28px; } }
body.mode-focus #toast-root { bottom: auto; top: calc(6px + env(safe-area-inset-top, 0px)); }
.toast {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 14px;
  font-weight: 650;
  font-size: var(--fs-sm);
  box-shadow: var(--shadow-soft);
  pointer-events: auto;
  animation: rise-in 0.35s var(--ease-spring) both;
  max-width: 100%;
}
.toast.is-leaving { opacity: 0; transform: translateY(8px); transition: opacity 0.25s ease, transform 0.25s ease; }
.toast-icon {
  flex: none;
  display: grid; place-items: center;
  width: 32px; height: 32px;
  border-radius: 10px;
  background: var(--accent, var(--brand));
  color: #1D1B26;
}
.toast-title { font-weight: 800; }
.toast-body { opacity: 0.85; font-weight: 500; }

/* -------------------------------------------------------------- misc */
.stack > * + * { margin-top: var(--gap, var(--s4)); }
.row { display: flex; align-items: center; gap: var(--gap, var(--s3)); }
.row-wrap { flex-wrap: wrap; }
.spread { justify-content: space-between; }
.grow { flex: 1 1 auto; min-width: 0; }
.divider { height: 0; border-top: 2px dashed var(--hair); margin: var(--s5) 0; }

.spinner {
  width: 28px; height: 28px;
  border: 3px solid var(--hair);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loading { display: grid; place-items: center; gap: var(--s3); padding: var(--s12) var(--s4); color: var(--ink-3); }

.empty {
  display: grid;
  justify-items: center;
  gap: var(--s3);
  text-align: center;
  padding: var(--s10) var(--s4);
  color: var(--ink-2);
}

.kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0.05em 0.4em;
  border: 1.5px solid var(--hair);
  border-bottom-width: 3px;
  border-radius: 6px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.8em;
  text-align: center;
  color: var(--ink-2);
}

.badge-dot {
  display: inline-grid;
  place-items: center;
  min-width: 22px; height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--red);
  color: #1D1B26;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
  border: 2px solid var(--edge-strong);
}

.tooltip {
  position: relative;
}
.tooltip[data-tip]:hover::after, .tooltip[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.3rem 0.6rem;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: var(--fs-xs);
  font-weight: 700;
  white-space: nowrap;
  z-index: 50;
  pointer-events: none;
}

/* ------------------------------------------------------------- mascot */
.mascot { flex: none; overflow: visible; }
.mascot-live .lem-eyes { transform-box: fill-box; transform-origin: center; animation: lem-blink 5.5s infinite; }
.mascot-live .lem-tail { transform-box: fill-box; transform-origin: 20% 90%; animation: lem-tail 4s ease-in-out infinite; }
@keyframes lem-blink { 0%, 93%, 100% { transform: scaleY(1); } 96% { transform: scaleY(0.08); } }
@keyframes lem-tail { 0%, 100% { transform: rotate(0deg); } 50% { transform: rotate(4deg); } }
.mascot-cheer.mascot-live .lem-eyes, .mascot-proud.mascot-live .lem-eyes, .mascot-sleep.mascot-live .lem-eyes { animation: none; }