/* UI/UX Pro Max review: flat surfaces, generous controls, visible focus.
   Character art, board layout and the established day/night palette stay shared. */
:root {
  --control-size:44px;
  --control-line:#8eabba;
  --danger:#ffc8c1;
  --danger-surface:#493638;
  --ui-duration:160ms;
  --ui-easing:cubic-bezier(.2,.7,.3,1);
}
:root[data-theme="day"] {
  --control-line:#748c9e;
  --danger:#963c36;
  --danger-surface:#fff1ef;
}
html {scroll-padding-block:24px}
.app-shell {
  padding-top:max(20px,env(safe-area-inset-top));
  padding-bottom:max(24px,env(safe-area-inset-bottom));
  padding-left:max(16px,env(safe-area-inset-left));
  padding-right:max(16px,env(safe-area-inset-right));
}
.topbar {max-width:680px;margin:0 auto 20px;gap:16px;flex-wrap:wrap}
.header-actions {gap:8px}
.header-actions .theme-switch {gap:8px;padding:3px;border-color:var(--control-line)}
.header-actions .theme-button,
.header-actions .icon-button,
.sound-button {
  width:var(--control-size);height:var(--control-size);
  min-width:var(--control-size);min-height:var(--control-size);
  display:inline-grid;place-items:center;padding:9px;
}
.header-actions .language-button {display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:9px 12px;font-size:14px}
.header-actions .icon-button {border-width:1px;border-radius:13px;border-color:var(--control-line);color:var(--text)}
.ui-icon {display:block;width:22px;height:22px;flex:none;pointer-events:none}
.header-restart .restart-icon {transform:none}
.quiet-button,.hint-button,.sound-button {border-color:var(--control-line)}
.quiet-button,.hint-button,.modal-action,.text-button {min-height:44px}
.hint-button {padding:10px 12px;font-size:13px}
.modal-close {display:grid;place-items:center;min-width:44px;min-height:44px;right:8px;top:8px;border-radius:12px;line-height:1}
.modal-close[hidden] {display:none}
button,summary,.avatar-option {
  -webkit-tap-highlight-color:transparent;
  transition:background-color var(--ui-duration) var(--ui-easing),border-color var(--ui-duration) var(--ui-easing),color var(--ui-duration) var(--ui-easing);
}
button:not(.tile):focus-visible,summary:focus-visible,#nickname:focus-visible {
  outline:3px solid var(--focus);outline-offset:3px;
}
button:not(.tile):active:not(:disabled) {filter:brightness(.93)}
button:disabled {cursor:not-allowed}
.side-panel .goal-top span,.side-panel .total-card>span,.side-panel .moves-card>span {font-size:12px;line-height:1.5;white-space:normal;text-align:center}
.side-panel .goal-top strong,.side-panel .total-card strong,.side-panel .moves-card strong {font-variant-numeric:tabular-nums}
.side-panel .goal-top strong span {font:inherit;color:inherit}
.goal-remaining {font-size:13px;line-height:1.45;white-space:normal;text-wrap:balance}
.board-foot {gap:10px;padding-top:12px}
.board-foot #status {font-size:13px}
.leaderboard-panel {max-width:680px;margin-inline:auto}
.play-area {max-width:680px;margin-inline:auto}
.play-area .side-panel {width:100%;align-items:stretch}
.leaderboard-heading {gap:12px}
.ranking-note,.personal-best,.record-status {line-height:1.65}
.leaderboard-toggle {min-height:44px;margin-block:16px}
.modal {
  max-height:calc(100dvh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  overflow:auto;overscroll-behavior:contain;scroll-padding-block:24px;
}
.modal .modal-inner {padding-top:44px}
.modal h2 {text-wrap:balance;line-height:1.4}
.modal p {overflow-wrap:anywhere}
.language-options button {min-height:56px}
.rule-details summary {min-height:48px;font-size:14px}
.rule-card p,.rule-details .rule-detail,.modal .field-hint {font-size:14px;line-height:1.65}
.avatar-picker {gap:8px}
.avatar-option {padding:10px 5px;border-radius:14px}
.avatar-option:has(input:checked)::after {
  content:'✓';position:absolute;right:3px;top:3px;
  display:grid;place-items:center;width:20px;height:20px;
  background:var(--accent);color:var(--accent-ink);border-radius:50%;
  font:700 14px/1 Arial,sans-serif;
}
.avatar-name {font-size:12px;line-height:1.5;overflow-wrap:anywhere;text-align:center}
#nickname {min-height:48px;font-size:16px;border-color:var(--control-line)}
#nickname[aria-invalid="true"] {border:2px solid var(--danger);background:var(--danger-surface)}
.field-error {color:var(--danger)!important;font-size:13px!important;line-height:1.6}
.page-footer {line-height:1.6;padding-top:24px}
@media(hover:hover) {
  .quiet-button:hover:not(:disabled),.hint-button:hover:not(:disabled),.sound-button:hover:not(:disabled),.modal-close:hover {background:var(--panel);border-color:var(--accent)}
}
@media(max-width:600px) {
  .app-shell {padding-top:max(14px,env(safe-area-inset-top));padding-left:max(8px,env(safe-area-inset-left));padding-right:max(8px,env(safe-area-inset-right))}
  .topbar {gap:12px;margin-bottom:16px;padding-inline:4px}
  .brand {width:100%}
  .brand h1 {font-size:26px}
  .header-actions {width:100%;margin:0;justify-content:flex-end;gap:8px}
  .header-actions .language-button {margin-right:auto}
  .game-layout .side-panel {gap:8px;margin-inline:0}
  .side-panel .goal-card,.side-panel .total-card,.side-panel .moves-card {padding:10px 5px;min-height:84px}
  .side-panel .goal-top strong {font-size:15px}
  .goal-remaining {font-size:13px}
  .board-foot {grid-template-columns:minmax(0,1fr) 44px 44px;gap:8px}
  .board-foot .hint-button {min-height:44px}
  .board-foot #status {font-size:13px;line-height:20px;min-height:40px}
  .modal {max-width:calc(100vw - 24px);border-radius:22px}
  .onboarding-modal .modal-inner,.record-modal .modal-inner {padding:44px 16px 24px}
  .avatar-picker {grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
  .avatar-option {padding:8px 2px;gap:5px}
}
@media(prefers-reduced-motion:reduce) {
  button,summary,.avatar-option {transition:none}
}
@media(max-width:360px) {
  .header-actions .language-button {padding-inline:8px;font-size:13px}
  .header-actions .language-button .ui-icon {display:none}
  .board-panel {border:1px solid var(--line);border-radius:18px;padding:6px}
}

/* Size the playfield from its real remaining grid space, including wrapped
   translations and safe areas. The page below it remains scrollable. */
@media(max-width:600px) and (orientation:portrait) {
  .app-shell {--play-top:max(10px,env(safe-area-inset-top));padding-top:var(--play-top)}
  .play-area {
    height:min(calc(100svh - var(--play-top) - max(12px,env(safe-area-inset-bottom))),calc(100vw + 330px));
    display:grid;grid-template-rows:auto minmax(0,1fr);gap:10px;
  }
  .play-area .topbar {gap:8px;margin:0;align-content:start}
  .play-area .brand h1 {font-size:24px}
  .play-area .game-layout {width:100%;min-height:0;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:10px;justify-content:stretch}
  .play-area .side-panel {align-self:start}
  .side-panel .goal-card,.side-panel .total-card,.side-panel .moves-card {min-height:80px;padding:6px 5px}
  .side-panel .goal-top {gap:3px}
  .side-panel .goal-top span,.side-panel .total-card>span,.side-panel .moves-card>span {font-size:13px;line-height:1.4}
  .side-panel #stage-progress {margin-top:5px}
  .goal-remaining {margin-top:4px}
  .play-area .board-panel {min-height:0;width:100%;display:grid;grid-template-rows:minmax(0,1fr) auto;padding:6px}
  .board-wrap {min-height:0;container-type:size;display:grid;place-items:center;padding:0}
  .board-wrap .board {width:min(100cqw,100cqh);height:auto;max-width:100%;max-height:100%;margin:auto}
  .board-foot {padding-top:8px;gap:6px 8px}
  .board-foot #status {min-height:40px;font-size:13px;line-height:20px}
}
@media(max-width:600px) and (max-height:600px) and (orientation:portrait) {
  .play-area .brand>div {display:flex;align-items:center;gap:8px}
  .play-area .brand h1 {font-size:22px;margin:0}
}

/* On a short landscape screen, the header and scores share the left column
   while the full board and its controls stay visible in the right column. */
@media(min-width:550px) and (max-height:600px) and (orientation:landscape) {
  .app-shell {
    --play-top:max(8px,env(safe-area-inset-top));
    padding-top:var(--play-top);
    padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));
  }
  .play-area {
    max-width:840px;height:calc(100svh - var(--play-top) - max(8px,env(safe-area-inset-bottom)));
    display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1fr);grid-template-rows:auto minmax(0,1fr);gap:12px 16px;
  }
  .play-area .topbar {grid-column:1;grid-row:1;align-self:start;width:100%;margin:0;gap:8px;z-index:1}
  .play-area .brand {width:100%}
  .play-area .brand h1 {font-size:24px}
  .play-area .header-actions {width:100%;justify-content:flex-end;gap:8px;margin:0;flex-wrap:wrap}
  .header-actions .language-button {margin-right:auto;padding-inline:8px}
  .header-actions .language-button .ui-icon {display:none}
  .play-area .game-layout {grid-column:1/-1;grid-row:1/-1;width:100%;min-height:0;max-width:none;margin:0;display:grid;grid-template-columns:subgrid;grid-template-rows:subgrid}
  .play-area .side-panel {grid-column:1;grid-row:2;align-self:start;margin:0;gap:8px}
  .side-panel .goal-card,.side-panel .total-card,.side-panel .moves-card {min-height:84px;padding:8px 5px}
  .side-panel .goal-top strong {font-size:16px}
  .side-panel .goal-top span,.side-panel .total-card>span,.side-panel .moves-card>span {font-size:13px;line-height:1.4;white-space:normal}
  .goal-remaining {font-size:13px}
  .play-area .board-panel {grid-column:2;grid-row:1/-1;align-self:stretch;min-height:0;width:100%;display:grid;grid-template-rows:minmax(0,1fr) auto;padding:6px}
  .board-wrap {min-height:0;container-type:size;display:grid;place-items:center;padding:0}
  .board-wrap .board {width:min(100cqw,100cqh);height:auto;max-width:100%;max-height:100%;margin:auto}
  .board-wrap .board {gap:2px}
  .board-foot {display:grid;grid-template-columns:minmax(0,1fr) 44px 44px;padding-top:6px;gap:4px 8px}
  .board-foot #status {grid-column:1/-1;grid-row:1;min-height:36px;font-size:13px;line-height:18px;display:flex;align-items:center;justify-content:center}
  .board-foot .hint-button {grid-column:1;grid-row:2;justify-self:start;min-height:44px;white-space:nowrap}
  .board-foot #sound-button {grid-column:2;grid-row:2}
  .board-foot #vibration-button {grid-column:3;grid-row:2}
}
@media(min-width:550px) and (max-width:650px) and (max-height:600px) and (orientation:landscape) {
  .board-wrap .board {gap:1px}
}