@import"https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700;900&display=swap";:root{font-family:Merriweather,Georgia,serif;line-height:1.5;font-weight:400;color:var(--text);background-color:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg: #0b1220;--text: #eef2f7;--grid-bg: #0f1a2a;--cell-bg: #0f1a2a;--cell-border: #203047;--grid-border: #3b587d;--selected: #203b5a;--given-bg: #3a2f62;--given-text: #f8ead6;--note-text: #92a1b9;--key-bg: #0f1a2a;--key-border: #22324a;--key-secondary: #152338;--key-active: #233850}body{margin:0;min-width:320px;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}:root[data-theme=light]{--bg: #fbf8f1;--text: #1a1a1a;--grid-bg: #f9f7f2;--cell-bg: #f9f7f2;--cell-border: #c9c5b8;--grid-border: #1f1f1f;--selected: #ffe7b6;--given-bg: #eee4d4;--given-text: #2f4f5f;--note-text: #2f4f5f;--key-bg: #ffffff;--key-border: #c9c5b8;--key-secondary: #f1efe8;--key-active: #e8e2d3}.game{display:grid;gap:1rem;justify-items:center;outline:none;position:relative}.grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));grid-template-rows:repeat(9,minmax(0,1fr));width:min(90vw,540px);aspect-ratio:1;border:2px solid var(--grid-border);background:var(--grid-bg)}.modal-backdrop{position:absolute;inset:0;background:#060a148c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2}.modal{position:absolute;inset:0;display:grid;place-items:center;z-index:3;pointer-events:none}.modal-card{pointer-events:auto;display:grid;gap:.6rem;padding:1.4rem 1.6rem;width:min(90vw,360px);text-align:center;background:var(--grid-bg);border:1px solid var(--cell-border);border-radius:12px;box-shadow:0 18px 40px #00000059;animation:modal-pop .35s ease}.modal-title{text-transform:uppercase;letter-spacing:.12em;font-size:.75rem;color:var(--note-text)}.modal-time{font-size:2rem;font-weight:900}.modal-subtitle{font-size:.95rem;color:var(--note-text)}.modal-actions{display:flex;justify-content:center;gap:.5rem}.grid.invalid{animation-duration:.45s;animation-timing-function:ease}.cell{display:flex;align-items:center;justify-content:center;border:1px solid var(--cell-border);font-size:clamp(18px,3.5vw,28px);font-weight:700;color:var(--text);-webkit-user-select:none;user-select:none;background:var(--cell-bg)}.cell.box-right{border-right:2px solid var(--grid-border)}.cell.box-bottom{border-bottom:2px solid var(--grid-border)}.cell.selected:not(.invalid-target):not(.conflict){background:var(--selected)}.cell.invalid-target{background:#ffd2d2;box-shadow:inset 0 0 0 2px #b42323}.cell.conflict{background:#ff9f9f;box-shadow:inset 0 0 0 2px #b42323}.cell.flash{animation:cell-flash .45s ease both}.cell.given{color:var(--given-text);background:var(--given-bg)}.notes{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:100%;height:100%;padding:4px;gap:2px;font-size:clamp(10px,1.6vw,12px);color:var(--note-text)}.note{display:grid;place-items:center}.keypad{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:.5rem;width:min(90vw,540px)}.key{padding:.6rem .8rem;border:1px solid var(--key-border);border-radius:6px;background:var(--key-bg);font-weight:600;color:var(--text)}.key.secondary{grid-column:span 3;background:var(--key-secondary)}.key.secondary.active{border-color:var(--grid-border);background:var(--key-active)}.toolbar{width:min(90vw,540px);display:flex;justify-content:space-between;align-items:center}.toolbar-actions{display:flex;gap:.5rem}.timer{font-size:.95rem;font-weight:700;letter-spacing:.04em}@keyframes cell-flash{0%{box-shadow:inset 0 0 0 2px #b42323,0 0 #b423238c}60%{box-shadow:inset 0 0 0 2px #b42323,0 0 0 10px #b4232359}to{box-shadow:inset 0 0 0 2px #b42323,0 0 #b4232300}}@keyframes invalid-flash{0%{box-shadow:0 0 #b4232373}60%{box-shadow:0 0 0 12px #b4232340}to{box-shadow:0 0 #b4232300}}@keyframes invalid-flash-alt{0%{box-shadow:0 0 #b4232373}60%{box-shadow:0 0 0 12px #b4232340}to{box-shadow:0 0 #b4232300}}@keyframes modal-pop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}