.kn-app{--kn-bg:#151f23;--kn-inner:#0e161a;--kn-line:#39484c;--kn-text:#edf1ee;--kn-muted:#adbcba;--kn-gold:#e6bc72;--kn-green:#9cd5b2;color:var(--kn-text);max-width:1120px;margin:40px auto;padding:0 16px;font-family:inherit}.kn-app *{box-sizing:border-box}.kn-app [hidden],#kn-practice[hidden]{display:none!important}
html[data-theme=light] .kn-app{--kn-bg:#fffdf8;--kn-inner:#f1f3ed;--kn-line:#cbd4cd;--kn-text:#26392f;--kn-muted:#52675c;--kn-gold:#825716;--kn-green:#286743}
.kn-hero,.kn-board,.kn-history,.kn-help{padding:26px;border:1px solid var(--kn-line);border-radius:16px;background:var(--kn-bg);margin-bottom:20px}.kn-hero{background:linear-gradient(120deg,var(--kn-bg),var(--kn-inner))}.kn-hero h1{font-size:clamp(26px,4vw,38px);margin:10px 0;color:var(--kn-gold)}.kn-hero p,.kn-muted,.kn-help p{color:var(--kn-muted);line-height:1.6}.kn-kicker{font-size:11px;font-weight:700;letter-spacing:.13em;color:var(--kn-gold)}.kn-app h2{font-size:19px;margin:8px 0;color:var(--kn-text)}
.kn-app button{background:var(--kn-inner);color:var(--kn-text);border:1px solid var(--kn-line);border-radius:8px;padding:10px 13px;font:inherit;font-size:13px;cursor:pointer;min-height:42px}.kn-app button:hover:not(:disabled){border-color:var(--kn-gold)}.kn-app button:focus-visible{outline:3px solid var(--kn-gold);outline-offset:3px}.kn-app button:disabled{opacity:.35;cursor:default}.kn-app button[aria-pressed=true]{border-color:var(--kn-gold);box-shadow:inset 0 0 0 2px var(--kn-gold)}.kn-app .kn-primary{background:#dbb46e;color:#21190e;border-color:#dbb46e;font-weight:700}.kn-modes,.kn-actions{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:20px}.kn-modes #kn-window{margin-left:auto}.kn-board{max-width:900px;margin-left:auto;margin-right:auto;border-color:var(--kn-gold);box-shadow:0 12px 35px #0002;background:linear-gradient(140deg,var(--kn-bg),var(--kn-inner))}.kn-board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.kn-score{font-size:13px;color:var(--kn-gold);padding:9px 12px;border:1px solid var(--kn-line);border-radius:20px}.kn-message{font-size:13px;color:var(--kn-muted);line-height:1.6;min-height:42px;margin:16px 0}.kn-message.kn-error{color:var(--kn-gold);border-left:3px solid var(--kn-gold);padding-left:12px}
.kn-entry fieldset{border:0;padding:0;margin:0 0 22px;min-width:0}.kn-entry legend{float:none;width:auto;font-size:13px;color:var(--kn-muted);margin-bottom:12px}.kn-cards{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:8px}.kn-app .kn-card{display:flex;align-items:center;justify-content:center;padding:0;width:100%;height:auto;min-height:0;aspect-ratio:3/4;border:1px solid #908267;border-radius:8px;font:700 clamp(19px,4vw,32px) Georgia,serif;box-shadow:inset 0 0 0 4px #ad93672a}.kn-app .kn-black{background:linear-gradient(135deg,#303539,#0c1012);color:#f0dfb8}.kn-app .kn-white{background:linear-gradient(135deg,#fffbed,#d9c9a8);color:#322818}.kn-entry-bottom{display:grid;grid-template-columns:1fr 1.5fr;gap:22px}.kn-options{display:flex;gap:7px}.kn-options button{flex:1;padding:10px 6px}.kn-options small{display:block;font-size:10px;opacity:.8;margin-top:5px}.kn-opponent{padding-top:20px;border-top:1px solid var(--kn-line)}.kn-opponent h2{margin-bottom:16px}.kn-rem{text-align:center;min-width:0}.kn-rem small{display:block;font-size:10px;margin-top:8px;color:var(--kn-muted)}.kn-used .kn-card{opacity:.25}.kn-maybe .kn-card{border-style:dashed;box-shadow:inset 0 0 0 3px #d6a95360}.kn-left small{color:var(--kn-green)}.kn-legend,#kn-left-count{font-size:12px;color:var(--kn-muted);line-height:1.6;margin:16px 0 0}.kn-confirm{padding:14px;border:1px solid var(--kn-gold);border-radius:10px;margin-bottom:20px;font-size:13px}.kn-confirm button{margin:5px}
.kn-history{max-width:900px;margin-left:auto;margin-right:auto}.kn-history ol{list-style:none;padding:0;margin:0}.kn-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:14px 0;border-top:1px solid var(--kn-line)}.kn-row-info{display:grid;gap:7px;font-size:13px}.kn-row-info span{color:var(--kn-muted);line-height:1.5}.kn-row button{flex-shrink:0}.kn-empty{padding:15px 0;color:var(--kn-muted);font-size:13px}.kn-help{max-width:900px;margin-left:auto;margin-right:auto;font-size:13px}.kn-help summary{cursor:pointer;color:var(--kn-gold);font-weight:700}.kn-popup-body{margin:0;background:#0c1215;font-family:Arial,sans-serif}html[data-theme=light] .kn-popup-body{background:#edf0e9}.kn-popup-body .kn-app{margin:16px auto}.kn-popup-body #kn-practice{max-width:800px;margin:auto;padding:16px;color:#ddd}
@media(max-width:600px){.kn-app{margin:24px auto;padding:0 10px}.kn-hero,.kn-board,.kn-history,.kn-help{padding:16px}.kn-cards{gap:4px}.kn-entry-bottom{grid-template-columns:1fr;gap:0}.kn-rem small{font-size:8px}.kn-app .kn-card{border-radius:5px}.kn-app button{font-size:12px;padding:10px}.kn-modes #kn-window{margin-left:0}.kn-row{gap:8px}.kn-row-info{font-size:12px}}
/* Compact board and adjacent notes; inference/state logic is unchanged. */
.kn-app{margin-top:24px}.kn-hero{padding:18px 22px;margin-bottom:14px}.kn-hero h1{font-size:30px;margin:6px 0}.kn-hero p{font-size:13px;margin:6px 0 0}.kn-modes{margin-bottom:14px}
.kn-workspace{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(275px,1fr);gap:16px;align-items:start;margin-bottom:16px}
.kn-workspace>.kn-board,.kn-workspace>.kn-history{width:100%;max-width:none;min-width:0;margin:0;padding:18px;border-radius:13px}.kn-app h2{font-size:16px}.kn-board .kn-kicker{display:none}.kn-score{font-size:12px;padding:6px 9px}.kn-board-head{gap:8px}.kn-message{min-height:34px;margin:8px 0 12px;font-size:12px;line-height:1.45}.kn-entry fieldset{margin-bottom:14px}.kn-entry legend{font-size:12px;margin-bottom:9px}.kn-used-key{font-size:10px;color:var(--kn-muted);margin-left:12px}.kn-cards{gap:5px}.kn-app .kn-card{position:relative;max-height:72px;font-size:25px;border-radius:6px}.kn-entry-bottom{gap:12px;grid-template-columns:1fr 1.65fr}.kn-options{gap:5px}.kn-options button{font-size:11px;padding:8px 4px}.kn-options small{font-size:9px;margin-top:4px}.kn-actions{gap:6px;margin-bottom:14px}.kn-actions button{font-size:12px;padding:8px 10px;min-height:36px}.kn-opponent{padding-top:10px}.kn-opponent h2{margin:4px 0 12px}.kn-opponent #kn-left-count{font-size:11px;margin:0 0 8px}.kn-rem small{font-size:9px;margin-top:5px}.kn-legend{font-size:11px;margin-top:10px}.kn-history .kn-muted{font-size:12px;margin:7px 0 13px}.kn-history #kn-round-count{font-size:11px;color:var(--kn-muted)}.kn-history ol{max-height:460px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding-right:4px}.kn-row{gap:8px;padding:12px 0;align-items:flex-start}.kn-row-info{font-size:12px;gap:5px;min-width:0;overflow-wrap:anywhere}.kn-row button{font-size:10px;min-height:32px;padding:6px}.kn-empty{line-height:1.6}.kn-help{max-width:none;padding:14px 18px;margin-bottom:0}
.kn-app .kn-played:disabled,.kn-app .kn-used .kn-card{opacity:1;background:repeating-linear-gradient(135deg,var(--kn-inner),var(--kn-inner) 5px,var(--kn-bg) 5px,var(--kn-bg) 7px);color:var(--kn-muted);border:1px dashed var(--kn-line);box-shadow:none;text-decoration:line-through;text-decoration-thickness:2px}
.kn-played:after,.kn-used .kn-card:after{content:'×';position:absolute;right:2px;bottom:2px;width:15px;height:15px;display:grid;place-items:center;border-radius:3px;background:var(--kn-text);color:var(--kn-inner);font:700 13px/1 Arial,sans-serif;text-decoration:none}
.kn-maybe .kn-card:after{content:'?';position:absolute;right:2px;bottom:2px;width:14px;height:14px;display:grid;place-items:center;border-radius:3px;background:var(--kn-gold);color:var(--kn-inner);font:700 11px/1 Arial,sans-serif}
@media(max-width:779px){.kn-workspace{grid-template-columns:1fr;gap:12px}.kn-history ol{max-height:320px}.kn-hero h1{font-size:26px}.kn-app .kn-card{max-height:64px}.kn-workspace>.kn-board,.kn-workspace>.kn-history{padding:15px}}
@media(max-width:450px){.kn-entry-bottom{grid-template-columns:1fr;gap:0}.kn-app .kn-card{font-size:20px}.kn-rem small{font-size:8px}.kn-played:after,.kn-used .kn-card:after,.kn-maybe .kn-card:after{width:11px;height:11px;font-size:10px;bottom:1px;right:1px}.kn-hero{padding:16px}.kn-message{min-height:34px}}
.kn-app .kn-card[aria-pressed=true]{outline:3px solid #249b87;outline-offset:2px;border-color:#14715e;box-shadow:inset 0 0 0 3px #249b8780;transform:translateY(-2px)}
.kn-app .kn-card[aria-pressed=true]:after{content:'✓';position:absolute;right:1px;top:1px;width:19px;height:19px;display:grid;place-items:center;border-radius:4px;background:#126852;color:#fff;font:700 14px/1 Arial,sans-serif;box-shadow:0 0 0 1px #fff}
.kn-picker{border:1px solid var(--kn-line);border-left:3px solid #249b87;border-radius:10px;padding:12px;margin:6px 0 14px;background:var(--kn-bg)}.kn-picker-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.kn-picker-head strong{font-size:13px;color:var(--kn-green)}.kn-picker-head button{min-height:28px;padding:4px 8px;font-size:11px}.kn-picker fieldset{margin-bottom:10px}.kn-picker legend{margin-bottom:7px}.kn-picker .kn-options button{min-height:40px;font-size:12px}.kn-picker .kn-options button:disabled{opacity:.48;cursor:not-allowed;border-style:dashed}.kn-possible-note{font-size:11px;color:var(--kn-muted);line-height:1.5;margin:8px 0 0}
.kn-online{display:inline-flex;align-items:center;gap:5px;white-space:nowrap;border:1px solid var(--kn-line);border-radius:20px;padding:6px 10px;font-size:11px;color:var(--kn-green);background:var(--kn-inner)}.kn-online>span{font-size:9px}
@media(max-width:450px){.kn-app .kn-card[aria-pressed=true]:after{width:13px;height:13px;font-size:10px;top:-4px;right:-3px}.kn-picker{padding:10px}}