/* Components: buttons, form controls, panels, menus, cards and messages. Tokens only. */

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--control-gap); min-height: var(--control-height); padding: 8px var(--control-padding);
  border-radius: var(--radius-md); border: var(--border) solid var(--btn-border); background: var(--btn-bg); color: var(--btn-ink);
  font-family: var(--btn-font); font-size: var(--control-font-size); line-height: 1.25; font-weight: var(--btn-weight); text-transform: var(--btn-case); letter-spacing: var(--btn-tracking);
  min-width: 0; text-align: center; text-wrap: balance;
  transition: transform .12s var(--ease), background .15s, border-color .15s, box-shadow .12s;
}
.btn:hover:not(:disabled) { background: var(--btn-hover-bg); }
.btn:active:not(:disabled) { transform: var(--btn-press); }
.btn:disabled { opacity: .4; cursor: default; }
.btn.primary { background: var(--btn-primary-bg); color: var(--btn-primary-ink); border-color: var(--btn-primary-border);
  box-shadow: var(--btn-primary-shadow); }
.btn.primary:hover:not(:disabled) { filter: brightness(1.06); background: var(--btn-primary-bg); }
.btn.primary:focus-visible { box-shadow: var(--focus); }
.btn.primary:disabled { opacity: 1; background: transparent; color: var(--ink-muted); border-color: var(--line-strong); box-shadow: none; }
.btn.xl { min-height: var(--control-height-lg); font-size: 1.125rem; padding: 10px var(--space-5); }
.btn.small { min-height: var(--control-height-sm); padding-inline: var(--space-4); }
.btn.ghost { background: transparent; }
.btn svg { width: 20px; height: 20px; flex: none; }
.row { display: flex; flex-wrap: wrap; gap: var(--control-gap); }
.row > .btn { flex: 1 1 0; }

/* Switch */
.switch { display: flex; align-items: center; gap: var(--space-3); cursor: pointer; min-height: var(--control-height); width: fit-content; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .track { position: relative; width: 44px; height: 26px; border-radius: calc(var(--radius-chip) * 1); flex: none;
  background: var(--surface-hover); border: var(--border) solid var(--line-strong); transition: background .15s, border-color .15s; }
.switch .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px;
  border-radius: calc(var(--radius-chip) * 1); background: var(--ink); transition: transform .18s var(--ease); }
.switch input:checked + .track { background: var(--toggle-on); border-color: var(--toggle-on); }
.switch input:checked + .track::after { transform: translateX(18px); background: #ffffff; }
.switch input:focus-visible + .track { box-shadow: var(--focus); }

/* Choice chips and ranges */
.choice { border: 0; padding: 0; margin: 0 0 20px; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 6px; }
.choice legend { width: 100%; margin-bottom: 10px; font: 500 var(--label-size)/1.2 var(--label-font); color: var(--ink-muted);
  letter-spacing: var(--label-tracking); text-transform: var(--label-case); }
.choice label { position: relative; display: grid; min-width: 0; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: flex; align-items: center; justify-content: center; text-align: center; min-height: var(--control-height); padding: 6px var(--space-3);
  height: 100%; min-width: 0; line-height: 1.2; border-radius: var(--radius-chip);
  border: var(--border) solid var(--line-strong); cursor: pointer; transition: background .15s, border-color .15s, color .15s; }
.choice input:checked + span { background: var(--selected-bg); border-color: var(--selected-bg); color: var(--selected-ink); }
.choice input:focus-visible + span { box-shadow: var(--focus); }
.range { display: grid; gap: 6px; margin: 0 0 20px; }
.range span { display: flex; justify-content: space-between; color: var(--ink-muted); font-size: .92rem; }
.range output { color: var(--ink); font: 500 .9rem var(--font-mono); }
input[type="range"] { width: 100%; accent-color: var(--signal); min-height: var(--control-height); margin-inline: 0; }

/* Panels, dialogs and tabs */
.panel { position: relative; padding: 28px; border-radius: var(--radius-lg); background: var(--surface);
  border: var(--border) solid var(--line); box-shadow: var(--shadow-panel); animation: rise .24s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
.panel-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.panel-header h2 { margin: 0; }
.close { width: var(--control-height); height: var(--control-height); flex: none; border-radius: var(--radius-hud); border: var(--border) solid var(--line); background: transparent;
  color: var(--ink-muted); font-size: 1rem; }
.close:hover { color: var(--ink); border-color: var(--line-strong); }
.tabs { display: flex; gap: 4px; margin: 12px 0 24px; padding: 4px; border-radius: var(--radius-md); background: var(--surface-2); overflow-x: auto;
  scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs [role="tab"] { flex: 1 1 auto; min-height: var(--control-height); padding: 0 var(--space-2); border: 0; border-radius: max(0px, calc(var(--radius-md) - 3px));
  background: transparent; color: var(--ink-muted); font-weight: 600; }
.tabs [aria-selected="true"] { background: var(--selected-bg); color: var(--selected-ink); }
.tab-panel { min-height: 280px; }

/* Menu rows */
.menu { display: grid; grid-auto-rows: 1fr; gap: var(--control-gap); }
.menu-item { display: flex; align-items: center; gap: var(--space-3); min-height: var(--control-height); padding: 10px var(--space-4); border-radius: var(--radius-md);
  text-align: left; border: var(--border) solid transparent; background: var(--item-bg); color: var(--item-ink);
  font-weight: 600; font-size: 1.04rem; transition: background .12s, color .12s, border-color .12s; }
.menu-item svg { width: 20px; height: 20px; flex: none; opacity: .75; }
.menu-item:hover { background: var(--surface-hover); }
.menu-item:disabled { opacity: .4; cursor: default; }
.menu-item:focus-visible { background: var(--item-focus-bg); color: var(--item-focus-ink); box-shadow: var(--focus); }
.menu-item.primary { background: var(--item-primary-bg); color: var(--item-primary-ink); }
.menu-item.quiet { background: transparent; color: var(--ink-muted); }

/* Cards: continue, save slots */
.continue-card, .slot { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 12px;
  text-align: left; border-radius: var(--radius-md); border: var(--border) solid var(--line); background: var(--surface);
  box-shadow: var(--shadow-card); transition: border-color .15s, background .15s, transform .15s var(--ease); }
.continue-card:hover, .slot:hover:not(:disabled), .slot:focus-visible { border-color: var(--ink); }
.slot:disabled { opacity: .5; cursor: default; }
.continue-card .thumb, .slot .thumb { aspect-ratio: 292 / 239; border-radius: max(0px, calc(var(--radius-md) - 4px)); overflow: hidden; background: #000; }
.continue-card .thumb { width: 118px; }
.slot .thumb { width: 104px; }
.continue-card img, .slot img { width: 100%; height: 100%; object-fit: cover; image-rendering: pixelated; display: block; }
.continue-card img:not([src]) { display: none; }
.continue-text { display: grid; }
.continue-text strong { font-size: 1.25rem; }
.continue-text small, .slot small, .slot .go { color: var(--ink-muted); }
.slot strong { display: block; font-size: 1.05rem; }
.continue-card svg { width: 22px; height: 22px; color: var(--ink-muted); }

/* Setup: drop zone and file checks */
.drop-zone { position: relative; display: grid; justify-items: center; gap: 6px; padding: 30px 24px; text-align: center; cursor: pointer;
  border-radius: var(--radius-md); border: 1.5px dashed var(--line-strong); background: var(--surface);
  transition: border-color .15s, background .15s; }
.drop-zone:hover, .drop-zone.dragging { border-color: var(--signal); }
.drop-zone:focus-within { box-shadow: var(--focus); }
.drop-zone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop-zone strong { font-size: 1.1rem; }
.drop-zone span { color: var(--ink-muted); font-size: .9rem; max-width: 42ch; }
.drop-zone u { color: var(--ink); text-decoration-color: var(--signal); text-underline-offset: 3px; }
.drop-icon { width: 32px; height: 32px; color: var(--signal); margin-bottom: 4px; }
.file-status { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.file-status li { display: grid; grid-template-columns: auto auto 1fr; align-items: center; gap: 12px; padding: 12px 16px;
  border-radius: var(--radius-sm); background: var(--surface); border: var(--border) solid var(--line); }
.file-status .label { font-weight: 600; }
.file-status .detail { color: var(--ink-muted); font: 500 .8rem var(--font-mono); text-align: right; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ink-faint); }
.file-status li[data-state="ready"] .dot { background: var(--good); }
.file-status li[data-state="ready"] .detail { color: var(--ink); }
.problem { margin: 0; padding: 12px 16px; border-radius: var(--radius-sm); border: var(--border) solid var(--bad); color: var(--ink);
  background: color-mix(in srgb, var(--bad) 12%, transparent); font-size: .92rem; }
.help summary { cursor: pointer; color: var(--ink-muted); font-size: .92rem; width: fit-content; min-height: var(--control-height-sm); padding-block: 10px; }
.help p { color: var(--ink-muted); font-size: .9rem; margin: 8px 0 0; }

/* Controls legend */
.legend { display: grid; grid-template-columns: max-content 1fr; gap: 7px 16px; margin: 0; font-size: .9rem; }
.legend dt { white-space: nowrap; }
.legend dt kbd { display: inline-block; padding: 1px 7px; margin-right: 3px; border-radius: var(--radius-sm);
  border: var(--border) solid var(--line-strong); border-bottom-width: 2px; background: var(--surface-2);
  font: 500 .74rem/1.6 var(--font-mono); }
.legend dd { margin: 0; color: var(--ink-muted); }

/* HUD buttons, loading and toasts */
.hud-button { width: var(--control-height); height: var(--control-height); display: grid; place-items: center; flex: none; border-radius: var(--radius-hud);
  border: var(--border) solid var(--hud-border); background: var(--hud-bg); color: var(--ink); }
.hud-button svg { width: 18px; height: 18px; }
.spinner { width: 40px; height: 40px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--signal);
  animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.toasts { position: absolute; left: 50%; bottom: calc(22px + var(--safe-bottom)); transform: translateX(-50%); display: grid; gap: 8px;
  justify-items: center; z-index: 30; pointer-events: none; width: min(92vw, 520px); }
.toast { padding: 11px 18px; border-radius: var(--radius-md); background: var(--surface); border: var(--border) solid var(--line-strong);
  box-shadow: var(--shadow-panel); font-weight: 600; font-size: .95rem; animation: toast .25s var(--ease); text-align: center; }
.toast.good { border-color: var(--good); }
.toast.bad { border-color: var(--bad); }
.toast.leaving { opacity: 0; transform: translateY(8px); transition: opacity .3s, transform .3s; }
@keyframes toast { from { opacity: 0; transform: translateY(8px); } }

/* Home with a save: Continue is the main action, New game steps back. */
#home.has-save .continue-card { border-left: 6px solid var(--signal); padding-left: 14px; }
#home.has-save .continue-text strong { font: var(--heading-weight) 1.6rem/1.05 var(--font-display); text-transform: var(--heading-case);
  letter-spacing: var(--heading-tracking); }
#home.has-save .continue-text small { font: 500 var(--label-size)/1.4 var(--label-font); letter-spacing: var(--label-tracking);
  text-transform: var(--label-case); }
#home.has-save #newGame { background: transparent; color: var(--ink); border-color: var(--line-strong); box-shadow: none; }
/* Setup once both files pass: the drop zone becomes a one-line replace control. */
#setup.ready .drop-zone { padding: 12px 16px; }
#setup.ready .drop-zone span { display: none; }
#setup.ready .drop-zone strong { font-size: .95rem; font-weight: 600; color: var(--ink-muted); }