.game-layout { --game-width: 480px; --panel-width: min(100%, calc(100svh - var(--board-space, 286px) - var(--difficulty-space, 0px))); --player-one-color: #526b86; --player-two-color: #7b6389; --letter-s-color: #426e58; --letter-o-color: #956b43; }
:root[data-theme='dark'] .game-layout { --player-one-color: #8fb4f0; --player-two-color: #c8a0e5; --letter-s-color: #83c9a4; --letter-o-color: #e2b17a; }
.letter-s { --letter-color: var(--letter-s-color); }
.letter-o { --letter-color: var(--letter-o-color); }
.game-header h1 { position: relative; justify-self: center; }
.difficulty-label { margin: -8px 0 10px; color: #28634b; font-size: 15px; line-height: 22px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
:root[data-theme='dark'] .difficulty-label { color: #88c9a9; }
.game-layout:has(#game-difficulty:not([hidden])) { --difficulty-space: 24px; }
.beta-label { position: absolute; top: 0; left: calc(100% + 5px); font-size: 11px; font-weight: 600; letter-spacing: 0; color: var(--muted); }
.game-panel { width: var(--panel-width); margin-inline: auto; background: var(--board); border: 2px solid var(--edge); }
.game-screen { width: 100%; aspect-ratio: 1; }
#board { display: grid; grid-template-columns: repeat(var(--size, 6), minmax(0, 1fr)); grid-template-rows: repeat(var(--size, 6), minmax(0, 1fr)); height: 100%; container-type: inline-size; }
#board button { display: grid; place-items: center; position: relative; min-height: 0; min-width: 0; padding: 0; border-radius: 0; border-right: 1px solid var(--key-border); border-bottom: 1px solid var(--key-border); background: transparent; color: var(--text); font-size: min(28px, 5.2vw, calc(55cqi / var(--size, 6))); line-height: 1; }
#board button:disabled { opacity: 1; }
#board button:is(.letter-s, .letter-o) { color: var(--letter-color); }
#board button:focus-visible { outline-offset: -4px; position: relative; z-index: 1; }
#board button.last { background: color-mix(in srgb, var(--letter-color) 15%, var(--board)); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--letter-color) 45%, var(--key-border)); }
.board-letter { display: block; line-height: 1; transform-origin: center; }
#lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.player-0 { stroke: var(--player-one-color); }
.player-1 { stroke: var(--player-two-color); }
#lines line { stroke-width: .045; stroke-linecap: round; opacity: .9; }
#setup { display: grid; grid-template-columns: auto minmax(0, 170px); align-content: center; justify-content: center; gap: 18px 16px; padding: 20px; }
#setup label { align-self: center; text-align: left; color: var(--muted); font-size: 14px; }
#setup::before { content: ''; position: absolute; inset: 0; z-index: 2; background: rgb(0 0 0 / 30%); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 140ms ease; }
#setup:has(.select-wrap.is-open)::before { opacity: 1; visibility: visible; pointer-events: auto; }
#setup:has(.name-input:focus)::before { opacity: 1; visibility: visible; pointer-events: auto; }
#setup:has(.select-wrap.is-closing)::before { visibility: visible; }
.select-wrap { position: relative; min-width: 0; text-align: left; }
.select-wrap:is(.is-open, .is-closing) { z-index: 3; }
.select-trigger, .select-trigger:hover, .select-trigger:active { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 46px; padding: 10px 14px; border: 1px solid var(--key-border); border-radius: 8px; font-size: 15px; font-weight: 600; color: var(--text); background: var(--board); text-align: left; box-shadow: none; filter: none; -webkit-tap-highlight-color: transparent; }
.select-trigger:focus:not(:focus-visible) { outline: none; }
#size-value { white-space: nowrap; font-size: 14px; }
#size-option-3 { white-space: nowrap; font-size: 14px; }
.select-trigger::after { content: ''; flex: 0 0 6px; width: 6px; height: 6px; margin-top: -4px; border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted); transform: rotate(45deg); }
.select-options { position: absolute; top: calc(100% + 5px); left: 0; width: 100%; padding: 5px; border-radius: 8px; background: var(--board); box-shadow: 0 5px 18px rgb(0 0 0 / 20%); transform-origin: top; }
.select-options { overflow-y: auto; overscroll-behavior: contain; }
.select-options[data-placement='above'] { transform-origin: bottom; }
.select-option { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; padding: 9px; border-radius: 4px; color: var(--text); font-size: 15px; font-weight: 500; cursor: pointer; }
.select-option[aria-selected='true'] { font-weight: 700; }
.select-option[aria-selected='true']::after { content: ''; width: 5px; height: 10px; margin: -3px 3px 0 0; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); }
.select-option.is-active { background: var(--secondary); }
@media (hover: hover) { .select-option:hover { background: var(--secondary); } }
@media (prefers-reduced-motion: reduce) { #setup::before { transition: none; } }
#start { grid-column: 1 / -1; justify-self: center; margin-top: 8px; }
.setup-actions { grid-column: 1 / -1; display: flex; flex-direction: column; align-items: center; }
.privacy-link { text-decoration: underline; text-underline-offset: 4px; background: transparent; color: var(--muted); padding: 6px 10px; font-size: 13px; min-height: 32px; }
.privacy-link:hover { color: var(--text); background: transparent; }
.privacy-view { padding: clamp(14px, 4vw, 30px); gap: 10px; background: var(--board); text-align: left; align-items: stretch; overflow: auto; }
.privacy-view h2 { margin: 0; font-size: clamp(19px, 5vw, 24px); }
.privacy-view h2:focus { outline: none; }
.privacy-view p { margin: 0; font-size: clamp(12px, 3.3vw, 14px); line-height: 1.5; color: var(--muted); }
.privacy-view #privacy-status { font-size: 12px; }
.privacy-view .privacy-link { align-self: flex-start; padding-left: 0; }
.board-actions { padding: 8px 12px; border-top: 1px solid var(--key-border); background: var(--page); }
#new-game { min-width: 140px; background: var(--primary); color: #fff; }
#new-game:enabled:hover { background: var(--primary-hover); }
.scoreboard { width: var(--panel-width); display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); align-items: start; gap: 10px; margin: 0 auto 16px; }
.player-side { position: relative; isolation: isolate; width: 100%; padding: 10px 12px; display: grid; grid-template-rows: 37px 18px; align-items: center; gap: 3px 12px; min-width: 0; }
.player-side-one { --player-color: var(--player-one-color); }
.player-side-two { --player-color: var(--player-two-color); }
.player-side-one { justify-self: end; grid-template-columns: minmax(0,1fr) auto; grid-template-areas: 'name score' 'streak score'; justify-items: end; }
.player-side-two { justify-self: start; grid-template-columns: auto minmax(0,1fr); grid-template-areas: 'score name' 'score streak'; justify-items: start; }
.player-side .player-name { grid-area: name; }
.player-side .letter-streak { grid-area: streak; }
.scoreboard.is-waiting { visibility: hidden; }
.scoreboard strong { grid-area: score; align-self: center; margin: 0; font-size: 46px; line-height: 1; font-variant-numeric: tabular-nums; }
.player-name { min-width: 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; font-size: 16px; color: var(--player-color); padding: 6px 0; border-bottom: 2px solid transparent; white-space: nowrap; }
#player-one { text-align: right; justify-self: end; }
#player-two { text-align: left; justify-self: start; }
.player-name.current { color: var(--player-color); font-weight: 700; }
#score-one { color: var(--player-one-color); }
#score-two { color: var(--player-two-color); }
.scoreboard.is-playing .player-name:not(.current), .scoreboard.is-playing strong:not(.current) { opacity: .75; }
.player-side::before { content: ''; position: absolute; inset: 0; z-index: -1; border-radius: 6px; background: var(--player-color); opacity: 0; }
.player-side.is-current::before { animation: turn-pulse 2.8s ease-in-out infinite; }
@keyframes turn-pulse { 0%, 100% { opacity: .08; } 50% { opacity: .22; } }
@media (prefers-reduced-motion: reduce) { .player-side.is-current::before { animation: none; opacity: .16; } }
.letter-streak { display: inline-flex; flex: 0 0 auto; gap: 3px; color: var(--letter-color, var(--muted)); }
#streak-one { flex-direction: row-reverse; }
.streak-cell { display: grid; place-items: center; width: 15px; height: 18px; border: 1px solid var(--key-border); border-radius: 3px; font-size: 11px; line-height: 1; font-weight: 700; }
.streak-cell.is-filled { border-color: color-mix(in srgb, var(--letter-color) 40%, var(--key-border)); background: color-mix(in srgb, var(--letter-color) 10%, var(--page)); }
.letter-streak.is-full .streak-cell { background: color-mix(in srgb, var(--letter-color) 18%, var(--page)); border-color: color-mix(in srgb, var(--letter-color) 65%, var(--key-border)); }
#letter-picker { position: fixed; inset: auto; z-index: 5; margin: 0; width: 110px; padding: 5px; border: 1px solid var(--key-border); border-radius: 9px; background: var(--board); color: var(--text); box-shadow: 0 4px 14px rgb(0 0 0 / 14%); }
.picker-letters { display: flex; gap: 4px; }
.picker-letters button { flex: 1; min-width: 0; min-height: 44px; padding: 6px; border: 1px solid color-mix(in srgb, var(--letter-color) 25%, var(--board)); border-radius: 5px; font-size: 21px; line-height: 24px; font-weight: 650; background: color-mix(in srgb, var(--letter-color) 7%, var(--board)); color: var(--letter-color); filter: none; -webkit-tap-highlight-color: transparent; }
.picker-letters [data-letter='S'] { --letter-color: var(--letter-s-color); }
.picker-letters [data-letter='O'] { --letter-color: var(--letter-o-color); }
.picker-letters button:enabled:hover { background: color-mix(in srgb, var(--letter-color) 15%, var(--board)); }
.picker-letters button:focus-visible { outline: 2px solid var(--letter-color); outline-offset: 1px; }
.picker-letters button:disabled { background: transparent; border-color: var(--key-border); color: var(--muted); opacity: .35; cursor: not-allowed; filter: none; }
#board button.selected { box-shadow: inset 0 0 0 2px var(--primary); }
#result { padding: 20px; }
@media (hover: hover) { #board button:enabled:not([aria-disabled='true']):hover { background: var(--secondary); } }
@media (max-width: 380px) { .game-page { padding: 16px 12px; } #setup { gap: 14px 12px; grid-template-columns: auto minmax(0, 158px); padding: 16px; } .player-side { column-gap: 8px; } .player-name { font-size: 15px; } .letter-streak { gap: 2px; } .streak-cell { width: 14px; height: 18px; font-size: 11px; } }
@media (max-height: 640px) { .game-page { padding: 12px 16px; } .game-header { margin-bottom: 12px; } .scoreboard { margin-bottom: 12px; } .game-layout { --board-space: 234px; } #setup { gap: 12px; padding: 12px; } }

/* Keep settings reachable when a short viewport needs scrolling. */
#setup { overflow-y: auto; align-content: safe center; }
.name-input { min-width: 0; width: 100%; min-height: 46px; border: 1px solid var(--key-border); border-radius: 8px; padding: 10px 14px; font-family: inherit; font-size: 15px; font-weight: 600; color: var(--text); background: var(--board); }
.name-input:focus { outline: none; box-shadow: none; border-color: var(--key-border); }
@media (min-width: 700px) {
  #setup { row-gap: 20px; }
  .name-input, .select-trigger, .select-trigger:hover, .select-trigger:active { min-height: 40px; padding-top: 7px; padding-bottom: 7px; }
}
@media (max-width: 699px) {
  #setup { padding: 12px; row-gap: 16px; }
  .name-input, .select-trigger, .select-trigger:hover, .select-trigger:active { min-height: 44px; padding-top: 8px; padding-bottom: 8px; }
  .setup-actions { margin-top: 0; }
  #start { margin-top: 0; }
}
.name-field { position: relative; min-width: 0; }
.name-field:focus-within { z-index: 3; }
/* Match input text's 1px border + 14px padding. The rotated chevron extends
   about 1.25px beyond the dropdown's content edge on the right. */
.name-feedback { position: absolute; top: calc(100% + 2px); left: 15px; right: 13.75px; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 5px; font-size: 10px; line-height: 12px; color: var(--muted); pointer-events: none; }
.name-warning { grid-column: 1; text-align: left; white-space: nowrap; }
.name-count { grid-column: 2; text-align: right; font-variant-numeric: tabular-nums; }
.name-field:not(:focus-within) .name-count { visibility: hidden; }
.name-field.is-over-limit .name-feedback { color: #a63f45; }
:root[data-theme='dark'] .name-field.is-over-limit .name-feedback { color: #f0a0a5; }

/* A fixed viewport keeps setup/results stationary while large grids pan underneath. */
#board-viewport { position: absolute; inset: 0; display: flex; overflow: auto; overscroll-behavior: contain; scrollbar-width: none; }
#board-viewport::-webkit-scrollbar { display: none; }
#board-stage { position: relative; flex: none; margin: auto; width: var(--board-width, 100%); height: var(--board-height, 100%); }
#board { grid-template-rows: repeat(var(--rows, 6), minmax(0, 1fr)); }
#board button { touch-action: pan-x pan-y; }
#setup.is-customizing::before { opacity: 1; visibility: visible; pointer-events: auto; }
#custom-size { position: fixed; margin: 0; translate: -50% -50%; width: min(270px, calc(100vw - 24px)); padding: 18px; border: 1px solid var(--key-border); border-radius: 9px; background: var(--board); color: var(--text); box-shadow: 0 6px 24px rgb(0 0 0 / 18%); }
#custom-size::backdrop { background: transparent; }
#custom-title { margin: 0 0 16px; font-size: 18px; }
.dimension-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.dimension-fields label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.dimension-fields input { width: 100%; min-width: 0; min-height: 44px; border: 1px solid var(--key-border); border-radius: 6px; padding: 8px 10px; background: var(--board); color: var(--text); font-family: inherit; font-size: 16px; font-weight: 600; line-height: 20px; text-align: center; }
.dimension-fields input:focus { outline: none; box-shadow: none; background: color-mix(in srgb, var(--primary) 20%, var(--board)); }
#custom-warning { min-height: 28px; margin: 4px 0; font-size: 11px; line-height: 14px; color: #a63f45; }
:root[data-theme='dark'] #custom-warning { color: #f0a0a5; }
.dimension-fields input[aria-invalid='true'] { border-color: currentColor; color: #a63f45; }
:root[data-theme='dark'] .dimension-fields input[aria-invalid='true'] { color: #f0a0a5; }
.custom-actions { display: flex; gap: 10px; }
.custom-actions button { flex: 1; padding-inline: 10px; }

/* A paper-like frame identifies the real grid boundary, rather than an obstacle. */
#board-viewport { padding: 4px; touch-action: none; }
#board-viewport.is-dragging, #board-viewport.is-dragging button { cursor: grabbing; }
#board button { touch-action: none; }
#board-stage::after { content: ''; position: absolute; inset: 0; pointer-events: none; border: 1px solid color-mix(in srgb, var(--muted) 60%, var(--board)); border-radius: 2px; box-shadow: 0 0 0 1px var(--board); }
.game-screen > .overlay { z-index: 3; }
.player-side { grid-template-rows: 39px 18px; row-gap: 7px; column-gap: 8px; }
.player-name { white-space: normal; text-wrap: balance; overflow-wrap: anywhere; text-overflow: clip; line-height: 1.18; height: 38px; padding: 0; border: 0; align-content: center; }