:root{--game-max-width: 480px;--shell-min-width: 380px}html,body{min-height:100dvh}body{margin:0;display:flex;justify-content:center;background:var(--game-shell-backdrop, var(--bg, #0c141c))}.game-shell{position:relative;width:clamp(min(var(--shell-min-width),100%),var(--shell-computed-width, 100%),min(var(--game-max-width),100%));max-width:var(--game-max-width);min-height:100dvh;margin:0 auto;display:flex;flex-direction:column;overflow:hidden;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}@media (min-width: 481px){.game-shell{box-shadow:0 0 0 1px var(--border-strong, rgba(255, 255, 255, .15))}}@media (orientation: landscape) and (max-height: 500px){.game-shell .game-header,.game-shell #header{padding-block:6px}.game-shell .game-header h1,.game-shell #header h1{font-size:14px}}@media (orientation: landscape){:root{--game-max-width: 1400px;--puzz-sidebar-landscape-width: 300px;--puzz-row-gap: 16px;--puzz-row-padding-x: 20px}.puzz-main-row{flex-direction:row!important;align-items:stretch;justify-content:center!important;padding:0 var(--puzz-row-padding-x)!important;box-sizing:border-box;gap:var(--puzz-row-gap)!important}.puzz-sidebar{order:2;flex:0 1 auto;width:fit-content;min-width:120px;max-width:var(--puzz-sidebar-landscape-width)!important;height:auto!important;max-height:100%!important;overflow-y:auto}.puzz-board-area{order:1;flex:1 1 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puzz-modal-pop-in{0%{transform:scale(.82);opacity:0}to{transform:scale(1);opacity:1}}.puzz-confetti-layer{position:absolute;top:0;left:0;right:0;height:100%;pointer-events:none;overflow:hidden}.puzz-confetti-layer .confetti-piece{position:absolute;top:0;width:8px;height:8px;border-radius:2px;animation:puzz-confetti-fall 2s ease-in forwards}@keyframes puzz-confetti-fall{0%{transform:translateY(-10px) rotate(0);opacity:1}to{transform:translateY(260px) rotate(360deg);opacity:0}}.puzz-close-btn{position:absolute;top:14px;right:14px;width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:none;border:none;box-shadow:none;border-radius:0;color:#7594a6;font-size:.9rem;line-height:1;cursor:pointer;padding:0;z-index:1}.puzz-close-btn:hover{color:#e9f1f6}.puzz-close-btn:focus-visible{outline:2px solid #5eb8e8;outline-offset:2px}.puzz-modal-title{margin:0 0 4px;color:#4caf6f;font-size:1.4rem}.puzz-modal-subtitle{color:#7594a6;font-size:.9rem;margin-bottom:14px}.puzz-modal-stats{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-size:1.4rem;font-weight:700;color:#5eb8e8;margin-bottom:18px}.puzz-share-preview{margin-top:4px;display:block;width:100%;box-sizing:border-box;background:#1b2c3a;border:1px solid #243b4d;border-radius:8px;padding:10px 12px;font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-size:.78rem;text-align:left;white-space:pre-wrap;word-break:break-all;color:#e9f1f6;margin-bottom:16px;resize:vertical}.puzz-share-preview:focus{outline:2px solid #5eb8e8}.puzz-share-note{font-size:.75rem;color:#7594a6;text-align:left;margin:-10px 0 16px}.puzz-modal-actions{display:flex;justify-content:center;gap:10px;margin-top:0}.puzz-btn{font-family:inherit;padding:9px 20px;border-radius:8px;font-size:.85rem;cursor:pointer;background:#1b2c3a;border:1px solid #243b4d;color:#e9f1f6}.puzz-btn:hover{filter:brightness(1.15)}.puzz-btn-primary{background:#5eb8e8;border-color:#5eb8e8;color:#0c141c}.puzz-btn-primary:hover{filter:brightness(1.08)}.puzz-modal-body{color:#7594a6;font-size:.85rem;line-height:1.5;margin:0 0 16px}.puzz-toggle-row{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:16px}.puzz-toggle-label{font-size:.82rem;color:#7594a6}.puzz-toggle-track{position:relative;display:inline-flex;background:#1b2c3a;border:1px solid #243b4d;border-radius:20px;padding:3px}.puzz-toggle-thumb{position:absolute;top:3px;bottom:3px;left:3px;width:calc(100% / var(--puzz-toggle-count, 2) - 3px);background:#5eb8e8;border-radius:16px;transition:transform .2s ease;z-index:0}.puzz-toggle-opt{position:relative;z-index:1;font-family:inherit;border:none;background:none;padding:6px 16px;border-radius:16px;font-size:.82rem;cursor:pointer;color:#7594a6;transition:color .15s ease}.puzz-toggle-opt.active{color:#0c141c}.puzz-grid-cell{position:absolute;background:var(--grid-cell-bg, var(--cell, #1b2c3a));border:1px solid var(--grid-cell-border, var(--cell-border, #243b4d));border-radius:var(--grid-cell-radius, 6px)}.puzz-grid-root{position:absolute;border-radius:var(--grid-radius, 8px);transition:box-shadow .25s}.puzz-grid-root.solved{box-shadow:0 0 0 3px var(--good, #4caf6f),0 0 18px 2px #4caf6f80}.puzz-piece-layer{position:absolute;top:0;left:0;pointer-events:none}.puzz-tile,.puzz-tile-look{border-radius:var(--grid-radius, 8px);font-weight:700;font-family:inherit;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.35);-webkit-user-select:none;user-select:none}.puzz-tile{position:absolute;display:flex;align-items:center;justify-content:center;pointer-events:auto;cursor:pointer}.puzz-tile.static{cursor:default}.puzz-tile.ghost{opacity:.5;pointer-events:none}.puzz-tile.cursor{opacity:.4;pointer-events:none}.puzz-tile-shadow,.puzz-tile-look{box-shadow:0 2px 4px #00000040}.puzz-tile-shadow.selected,.puzz-tile-look.selected{box-shadow:0 0 0 3px var(--accent, #5eb8e8),0 2px 4px #00000040}.puzz-tile-shadow.invalid,.puzz-tile-look.invalid{box-shadow:0 0 0 3px var(--bad, #d9534f),0 2px 4px #00000040}.puzz-connector{position:absolute;border-radius:var(--grid-connector-radius, 4px)}.puzz-connector.ghost{opacity:.5}.puzz-wall-outline,.puzz-wall-fill{fill:none;stroke-linecap:round;stroke-linejoin:round}:root{--color-background: #0c141c;--color-surface: #111c26;--color-surface-raised: #1b2c3a;--color-primary: #5eb8e8;--color-secondary: #00cec9;--color-accent: #fdcb6e;--color-success: #4caf6f;--color-danger: #d9534f;--color-warning: #f39c12;--color-text: #e9f1f6;--color-text-muted: #7594a6;--color-border: #243b4d}:root{--bg: var(--color-background);--panel: var(--color-surface);--cell: var(--color-surface-raised);--cell-border: var(--color-border);--ink: var(--color-text);--dim: var(--color-text-muted);--accent: var(--color-primary);--good: var(--color-success);--bad: var(--color-danger)}*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--ink);font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif}#app{height:100vh;height:100dvh;width:100%;display:flex;flex-direction:column;padding:10px 14px}#pageContainer{display:flex;flex-direction:column;flex:1;min-height:0}#header{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-shrink:0;margin-bottom:6px;padding:10px 16px;border-bottom:1px solid var(--cell-border);overflow:hidden}#footer{display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:8px;padding:10px 16px;border-top:1px solid var(--cell-border);overflow:hidden}.footer-brand{display:flex;flex-direction:column;align-items:center;line-height:1.2;font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;text-decoration:none}.footer-line1{font-weight:700;font-size:.75rem;letter-spacing:-.01em;color:var(--ink)}.footer-brand:hover .footer-line1{color:var(--accent)}.brand{display:flex;align-items:baseline;justify-content:center;gap:10px;min-width:0;text-decoration:none;color:inherit;touch-action:manipulation}.brand:hover h1{color:var(--accent)}#topbar{display:flex;align-items:center;gap:4px;flex-shrink:0}h1{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-weight:700;font-size:1.4rem;margin:0;letter-spacing:-.01em}.tagline{font-size:.72rem;color:var(--dim);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0;text-align:right}button,#homeBtn{font-family:inherit;font-size:.8rem;font-weight:600;padding:7px 13px;border-radius:8px;border:1px solid var(--cell-border);background:var(--panel);color:var(--ink);cursor:pointer;transition:background .15s,transform .1s;white-space:nowrap;display:inline-flex;align-items:center;gap:4px}button:hover,#homeBtn:hover{background:#1b2c3a}#homeBtn{text-decoration:none}button:active{transform:scale(.96)}button.primary{background:var(--accent);color:#0c141c;border-color:var(--accent)}button.primary:hover{filter:brightness(1.08)}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#helpBtn{font-weight:800}#topbar button,#topbar #homeBtn{padding:7px 12px;border-radius:999px;border:1px solid transparent;background:transparent;color:var(--dim);transition:color .15s,border-color .15s}#topbar button:hover,#topbar #homeBtn:hover{background:transparent;color:var(--ink)}#topbar button.primary{background:transparent;color:var(--ink);border:2px solid var(--ink);padding:6px 16px;font-weight:700}#topbar button.primary:hover{background:#e9f1f61a;color:var(--ink);border-color:var(--ink)}#statusbar{flex-shrink:0;min-height:14px;font-size:.8rem;color:var(--dim);text-align:center;padding:2px 0;display:flex;align-items:center;justify-content:center;gap:10px}#statusbar.win{color:var(--good);font-weight:700}.practice-badge{display:none;text-align:center;font-size:.72rem;font-weight:700;color:var(--accent);background:#5eb8e81f;border:1px solid var(--accent);border-radius:20px;padding:3px 12px;margin:0 auto 6px;width:fit-content;flex-shrink:0}.practice-badge.visible{display:block}.title-badge{color:var(--ink);background:var(--panel);border-color:var(--cell-border);font-weight:700;font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-size:.85rem}#statusbar .tool-btn{font-size:.72rem;padding:4px 9px}#main{flex:1;min-height:0;display:flex;flex-direction:column;gap:8px;align-items:stretch}#board-area{flex:1;min-width:0;min-height:0;display:flex;align-items:flex-start;justify-content:center;position:relative}#workspace{position:relative;touch-action:none}#touchCapture{position:absolute;touch-action:none;background:transparent;z-index:50}.shift-arrow{position:absolute;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#ffffff0d;color:var(--ink);font-size:12px;line-height:1;cursor:pointer;opacity:.2;transition:opacity .15s,background .15s;z-index:60;-webkit-user-select:none;user-select:none}.shift-arrow:hover{opacity:1;background:#ffffff24}.shift-arrow.puzz-min-hit-area,.sidebar-scroll-btn.puzz-min-hit-area,.puzz-close-btn.puzz-min-hit-area{position:absolute}.puzz-grid-root .puzz-grid-cell{border:none}#sidebar{width:auto;max-width:100%;flex-shrink:0;flex-grow:0;flex-basis:auto;overflow:hidden;background:var(--panel);border-radius:10px;padding:8px;display:flex;flex-direction:column;align-self:center;position:relative}#sidebarMoreFade{position:absolute;left:8px;right:8px;bottom:8px;height:28px;background:linear-gradient(to bottom,transparent,var(--panel));pointer-events:none;opacity:0;transition:opacity .15s;border-radius:0 0 10px 10px}#sidebarMoreFade.visible{opacity:1}.loading-placeholder{grid-column:1 / -1;text-align:center;color:var(--ink);font-size:.9rem;font-weight:700;padding:20px 10px;width:100%}.loading-placeholder span{display:block;margin-top:4px;font-size:.75rem;font-weight:400;color:var(--dim)}.sidebar-scroll-btn{position:absolute;right:10px;width:26px;height:26px;padding:0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;background:var(--cell);border:1px solid var(--cell-border);box-shadow:0 2px 6px #0000004d;opacity:0;pointer-events:none;transition:opacity .15s;z-index:2}.sidebar-scroll-btn.visible{opacity:1;pointer-events:auto}.sidebar-scroll-btn:hover{background:#1b2c3a}#sidebarScrollUpBtn{top:10px}#sidebarScrollDownBtn{bottom:10px}#sidebarHeader{flex-shrink:0;border-bottom:1px solid var(--cell-border);margin-bottom:6px;padding-bottom:6px}#sidebarFooter{flex-shrink:0;border-top:1px solid var(--cell-border);margin-top:6px;padding-top:6px}.box-header-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.box-header-row.box-header-row-end{justify-content:flex-end}.box-title{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-weight:700;font-size:.85rem;letter-spacing:-.01em;color:var(--ink);flex-shrink:0}.sidebar-reset-btn{font-size:.68rem;padding:3px 8px;flex-shrink:0}.sidebar-reset-btn.confirm{background:var(--bad);border-color:var(--bad);color:#fff}.sidebar-reset-btn.confirm:hover{filter:brightness(1.1)}#sidebarList{overflow-y:auto;display:flex;flex-wrap:wrap;justify-content:center;--wb-font-size: 12px;align-content:start;gap:min(calc(var(--wb-font-size) * .18),4px) min(calc(var(--wb-font-size) * .42),8px);min-height:0;max-height:100%;scrollbar-width:thin;scrollbar-color:var(--dim) var(--cell)}@media (orientation: landscape){#sidebarList{flex-direction:column;flex-wrap:nowrap;align-items:center}}#sidebarList::-webkit-scrollbar{width:8px}#sidebarList::-webkit-scrollbar-track{background:var(--cell);border-radius:4px}#sidebarList::-webkit-scrollbar-thumb{background:var(--dim);border-radius:4px}#sidebarList::-webkit-scrollbar-thumb:hover{background:var(--accent)}.word-row{flex:0 0 auto;display:flex;align-items:center;gap:min(calc(var(--wb-font-size) * .35),6px);min-width:0;padding:min(calc(var(--wb-font-size) * .18),3px) min(calc(var(--wb-font-size) * .25),4px);border-radius:calc(var(--wb-font-size) * .4);cursor:pointer;transition:background .15s}.word-row:hover{background:#ffffff0f}.word-row.selected{background:var(--cell)}.word-row.focused{box-shadow:inset 0 0 0 1px var(--dim)}.word-status-badge{flex-shrink:0;width:min(calc(var(--wb-font-size) * 1.1),15px);height:min(calc(var(--wb-font-size) * 1.1),15px);border-radius:50%;border:min(calc(var(--wb-font-size) * .16),2px) solid var(--dim);opacity:.45;display:flex;align-items:center;justify-content:center;font-size:min(calc(var(--wb-font-size) * .6),9px);font-weight:700;line-height:1;color:#fff}.word-status-badge.correct{background:var(--good);border-color:var(--good);opacity:1}.word-status-badge.error{background:var(--bad);border-color:var(--bad);opacity:1}.word-text{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:var(--wb-font-size);font-weight:700;letter-spacing:.02em;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.35);border-radius:min(calc(var(--wb-font-size) * .32),5px);padding:0 min(calc(var(--wb-font-size) * .38),5px)}#helpOverlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;display:none;align-items:center;justify-content:center;z-index:100;padding:20px}#helpOverlay.open{display:flex}#helpCard{background:var(--panel);border-radius:14px;position:relative;width:100%;min-width:0;max-width:560px;max-height:100%;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 12px 40px #0006}.help-scroll{flex:1;min-height:0;overflow-y:auto;overflow-wrap:break-word;padding:22px 26px}#helpCard h2{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;margin-top:0}#helpCard p{font-size:.88rem;line-height:1.55;color:var(--ink)}#helpCard b{color:var(--accent)}#helpCard b.control-label{color:var(--ink)}.help-subhead{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin:20px 0 6px}.help-steps{margin:0;padding-left:22px;font-size:.88rem;line-height:1.6;color:var(--ink)}.help-steps li{margin-bottom:4px}#helpCard .close-row{text-align:right;margin-top:14px}#settingsOverlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;display:none;align-items:center;justify-content:center;z-index:100;padding:20px}#settingsOverlay.open{display:flex}#settingsCard{background:var(--panel);border-radius:14px;padding:22px 26px;width:100%;min-width:0;overflow-wrap:break-word;max-width:480px;max-height:80vh;overflow-y:auto;box-shadow:0 12px 40px #0006}#settingsCard h2{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;margin-top:0}.settings-group{margin-bottom:18px}.settings-label{font-size:.85rem;font-weight:700;margin-bottom:8px}.settings-sublabel{font-weight:400;color:var(--dim);font-size:.78rem}.settings-row{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.opt-btn{min-width:44px;justify-content:center}.opt-btn.active{background:var(--accent);color:#0c141c;border-color:var(--accent)}#settingsCard .close-row{text-align:right;margin-top:14px;display:flex;justify-content:flex-end;gap:8px}#customOverlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;display:none;align-items:center;justify-content:center;z-index:100;padding:20px}#customOverlay.open{display:flex}#customCard{background:var(--panel);border-radius:14px;padding:22px 26px;width:100%;min-width:0;overflow-wrap:break-word;max-width:480px;max-height:85vh;overflow-y:auto;box-shadow:0 12px 40px #0006}#customCard h2{font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;margin-top:0}.custom-hint{font-size:.82rem;color:var(--dim);margin-top:-6px}#customWordsInput{width:100%;background:var(--cell);border:1px solid var(--cell-border);border-radius:8px;color:var(--ink);font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,sans-serif;font-size:.85rem;padding:10px;resize:vertical;box-sizing:border-box}#customPuzzleTitleInput{width:100%;background:var(--cell);border:1px solid var(--cell-border);border-radius:8px;color:var(--ink);font-family:inherit;font-size:.9rem;padding:9px 10px;box-sizing:border-box}#customPuzzleTitleInput:focus{outline:2px solid var(--accent)}#difficultyTestResult{font-size:.82rem;min-height:18px;margin:-4px 0 4px}#difficultyTestResult.good{color:var(--good)}#difficultyTestResult.warn{color:var(--accent)}#difficultyTestResult.bad{color:var(--bad)}.try-bigger-grid-btn{font-size:.78rem;padding:5px 11px;margin:-2px 0 8px}#customCard .close-row{text-align:right;margin-top:14px;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.modal-link-btn{background:none;border:none;color:var(--dim);text-decoration:underline;font-family:inherit;font-size:.78rem;cursor:pointer;padding:0}.modal-link-btn:hover{color:var(--ink)}@media (max-width: 720px){h1{font-size:1.1rem}#header{margin-bottom:4px;gap:8px}#topbar button,#topbar #homeBtn{padding:7px 9px;font-size:.74rem}#topbar button.primary{padding:6px 12px}#footer{margin-top:4px}}