/* Shared site tokens keep the saved-state diagram legible in both themes. */
.obs-view{min-width:0;font-variant-numeric:tabular-nums;--r:8px}
.obs-intro{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.obs-intro .obs-total{font-size:48px;line-height:1;margin:0;letter-spacing:-.04em}
.obs-intro>div{font-size:15px;font-weight:600}
.obs-intro>code{margin-left:auto;font-size:15px;color:var(--muted)}
.obs-note{font-size:12px;color:var(--muted);line-height:1.7;margin:12px 0 24px}
.obs-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:16px}
.obs-heading h3{font-size:15px;line-height:1.4;margin:0}
.obs-code{font:11px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted)}
.obs-zones{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.obs-zone{min-width:0;padding:18px 16px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.obs-zone .obs-heading{margin-bottom:12px}
.obs-zone h3{font-size:13px}
.obs-card-grid{display:grid;grid-template-columns:18px repeat(13,minmax(0,1fr));gap:4px 3px;align-items:center;text-align:center}
.obs-rank{font:10px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);padding-bottom:3px}
.obs-suit{font:16px/1.4 Arial,sans-serif}.obs-suit.is-red{color:var(--red-text)}
.obs-bit{display:grid;place-items:center;min-width:0;height:24px;border:1px solid var(--line);border-radius:3px;background:var(--table);color:var(--muted);font:10px/1 ui-monospace,SFMono-Regular,Consolas,monospace}
.obs-bit.is-set{background:#16765F;border-color:var(--leaf);color:#fff;font-weight:750}
.obs-legend{display:flex;gap:24px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:12px 0 28px}
.obs-legend span{display:flex;align-items:center;gap:7px}
.obs-legend span:before{content:'';display:inline-block;width:10px;height:10px;border-radius:2px;border:1px solid var(--line);background:var(--table)}
.obs-legend .obs-legend-on:before{background:var(--leaf);border-color:var(--leaf)}
.obs-phase{padding:20px;margin:28px 0 16px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.obs-phases{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.obs-phase-entry{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.obs-phase-label{font-size:12px;text-align:center}
.obs-phase .obs-bit{width:100%;height:42px;border-radius:6px;font-size:18px}
.obs-meta,.obs-mask-details{padding:0 20px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
:is(.obs-meta,.obs-mask-details)>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:12px;padding:20px 0;font-size:14px;font-weight:600}
:is(.obs-meta,.obs-mask-details)>summary::-webkit-details-marker{display:none}
:is(.obs-meta,.obs-mask-details)>summary:after{content:'+';font-size:22px;line-height:1;font-weight:400;color:var(--accent)}
:is(.obs-meta,.obs-mask-details)[open]>summary:after{content:'−'}
.obs-meta-hint{margin-left:auto;color:var(--muted);font-size:12px;font-weight:400}
.obs-meta-table{width:100%;border-collapse:collapse;font-size:12px;margin:0 0 20px}
.obs-meta-table caption{text-align:left;margin:0;padding:0 0 12px}
.obs-meta-table th,.obs-meta-table td{text-align:right;padding:10px 0 10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.obs-meta-table thead{color:var(--muted);font-size:11px}
.obs-meta-table th:nth-child(2){text-align:left}
.obs-meta-table th:first-child,.obs-meta-table td:first-child{padding-left:0}
.obs-meta-table tbody th{font-weight:500}
.obs-meta-table code,.obs-meta-table small{display:block;font-size:10px;color:var(--muted);font-weight:400;margin-top:4px;overflow-wrap:anywhere}
.obs-meta-table .obs-index{color:var(--muted);font:10px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace}
.obs-encoded{font-weight:650}

.obs-action-count{font-size:13px;color:var(--muted);margin:8px 0 16px}
.obs-action-count strong{font-size:28px;color:var(--ink);margin-right:6px}
.obs-actions .obs-legend{margin-bottom:14px}.obs-actions .obs-note{margin-bottom:0}
@media(max-width:1000px){.obs-zones{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){
 .obs-zones{grid-template-columns:1fr;gap:12px}.obs-zone{padding:16px}
 .obs-intro{gap:8px 14px}.obs-intro>code{margin-left:0;flex-basis:100%;font-size:13px}
 .obs-intro .obs-total{font-size:40px}.obs-heading{gap:8px}
 .obs-phases{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 10px}
 :is(.obs-meta,.obs-mask-details)>summary{flex-wrap:wrap;gap:4px 10px}.obs-meta-hint{order:3;flex-basis:100%;margin-left:0}:is(.obs-meta,.obs-mask-details)>summary:after{margin-left:auto}
 .obs-meta-table{font-size:11px}.obs-meta-table th,.obs-meta-table td{padding:10px 0 10px 8px}.obs-meta-table th:nth-child(2){width:44%}
 .obs-meta-table code,.obs-meta-table small{font-size:9px}

}

/* The board and tensors read from one observation; only inspection changes. */
.obs-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:28px;align-items:start}
.obs-spaces,.obs-observation{min-width:0}
.obs-board{padding:20px 18px 14px;background:var(--table);border:1px solid var(--line);border-radius:16px;min-width:0;font-variant-numeric:tabular-nums}
.obs-board-title{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:10px}
.obs-board-title strong{font-size:15px}.obs-board-title>span{font-size:10px;color:var(--muted)}
.obs-board-levels{display:flex;align-items:center;gap:4px;margin-bottom:4px;font-size:11px;color:var(--muted)}
.obs-level-line{height:1px;background:var(--line);flex:1;margin:0 6px}
.obs-flower{display:inline-flex;width:24px;height:24px;flex:none}.obs-flower svg{width:100%;height:100%}.obs-flower.rival{--sz-logo-petal:var(--gold)}
.obs-player-label{display:flex;align-items:center;gap:4px;font-size:12px;margin:4px 0}.obs-player-label>span:not(.obs-flower){font-size:10px;color:var(--muted);margin-left:4px}
.obs-wild-label{margin-left:auto;border:1px solid var(--gold-edge);border-radius:5px;padding:3px 6px;background:var(--gold-base);color:#8C294A;font-size:10px;white-space:nowrap}
.obs-hidden,.obs-card-row{display:flex;align-items:center;justify-content:center;gap:5px;min-width:0}
.obs-hidden{padding:2px 2px 4px;border-radius:8px}
.obs-back{position:relative;display:inline-grid;place-items:center;width:36px;height:51px;flex:none;background:var(--gold-base);border:1px solid var(--gold-edge);border-radius:5px}
.obs-back:after{content:'';position:absolute;inset:3px;border:1px solid #A17C3573;border-radius:3px;pointer-events:none}.obs-back .obs-flower{width:32px;height:32px;--sz-logo-petal:#C5416B;--sz-logo-center:#F2CD5D}
.obs-playing-card.sc-card{width:36px;height:51px;padding:4px;border-radius:5px;font-size:17px;flex:none}
.obs-playing-card.sc-card b{width:17px}.obs-playing-card .obs-small-suit{display:block;width:10px;height:10px;margin:2px 0 0 3px}.obs-small-suit svg{display:block;width:100%;height:100%;fill:currentColor}
.obs-playing-card.sc-card .sc-center{right:3px;bottom:3px}
.obs-board-zone{padding:3px 4px;border-radius:8px;outline:1px solid transparent;outline-offset:2px;min-width:0}
.obs-board-zone[data-board-zone="0"] .obs-playing-card{width:40px;height:57px;font-size:19px}.obs-board-zone[data-board-zone="0"] .obs-playing-card b{width:19px}
.obs-zone-link{font-family:inherit;font-size:12px;font-weight:600;line-height:1.5;cursor:pointer;border:0;background:none;color:var(--ink);padding:4px 0;text-align:left;text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:4px}
.obs-board-zone>.obs-zone-link{display:block;font-size:10px;line-height:1.4;padding:3px 0;margin-bottom:4px}.obs-zone-link:hover,.obs-zone-link[aria-pressed=true]{color:var(--accent);text-decoration-color:currentColor}
.obs-zone-link:focus-visible,.obs-action-groups button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
.obs-board-center{display:grid;grid-template-columns:1fr 54px 1fr;align-items:center;gap:4px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:6px 0 4px;padding:4px 0}
.obs-board-center>.obs-board-zone{text-align:center}.obs-board-center .obs-zone-link{font-size:9px;text-align:center}
.obs-empty{display:block;color:var(--muted);min-height:34px;line-height:34px;font-size:20px}
.obs-deck{position:relative;text-align:center;border-radius:8px;padding:4px}.obs-deck>span:first-child{display:block;color:var(--muted);font-size:10px;margin-bottom:4px}.obs-deck>strong{position:absolute;left:0;right:0;bottom:10px;font:700 13px var(--rank-font);color:#5F481A}.obs-deck .obs-back .obs-flower{transform:translateY(-5px);width:25px;height:25px}
.obs-board-status{display:flex;justify-content:space-between;align-items:center;gap:8px;background:var(--panel);border-radius:8px;padding:8px 12px;margin:6px 0 4px;font-size:12px}.obs-board-status>span{font-size:11px;color:var(--muted)}
.obs-board-inspection{padding:8px 10px;background:var(--panel);border:1px solid var(--line);border-radius:8px;margin-bottom:10px;font-size:11px;line-height:1.5}
.obs-board-inspection>span{display:block;font:10px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--accent);margin-bottom:2px}.obs-board-inspection>strong{display:block;font-weight:600}
.obs-board-key{display:flex;align-items:center;justify-content:center;gap:14px;font-size:10px;line-height:1.6;color:var(--muted);margin:10px 0 0}
.obs-board-key>span{display:flex;align-items:center;gap:4px}.obs-source-key:before,.obs-target-key:before{content:'';display:inline-block;width:9px;height:9px;border:2px solid var(--leaf);border-radius:3px}.obs-target-key:before{border-color:var(--accent)}
.obs-board-zone.is-zone-linked,.obs-zone.is-zone-linked{outline:2px solid var(--accent);outline-offset:2px}
.obs-playing-card.is-source,.obs-bit.is-source{outline:2px solid var(--leaf);outline-offset:2px}.obs-playing-card.is-target,.obs-bit.is-target,.obs-hidden.is-target,.obs-deck.is-target{outline:2px solid var(--accent);outline-offset:2px}
@media(min-width:1101px){.obs-board{position:sticky;top:16px;max-height:calc(100vh - 32px);max-height:calc(100dvh - 32px);overflow-y:auto;scrollbar-width:thin;overscroll-behavior:contain}}
@media(min-width:1101px) and (max-height:820px){
 .obs-board{padding:12px}.obs-board-title{margin-bottom:6px}.obs-board-inspection{margin-bottom:6px;padding:6px 8px}
 .obs-board-zone{padding:2px 4px}.obs-board-zone>.obs-zone-link{margin-bottom:2px}.obs-board-status{margin:4px 0;padding:6px 10px}
 .obs-board .obs-back{width:32px;height:45px}.obs-board .obs-playing-card.sc-card{width:31px;height:44px;font-size:16px}
 .obs-board-zone[data-board-zone="0"] .obs-playing-card.sc-card{width:34px;height:48px;font-size:17px}
 .obs-board-key{margin-top:6px}.obs-empty{min-height:28px;line-height:28px}
}

.obs-board{position:sticky;top:20px;max-height:calc(100vh - 40px);overflow:auto}
.obs-token-group{margin:18px 0}.obs-token-group h4{font-size:13px;margin:0 0 8px}
.obs-token-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.obs-card-tokens{grid-template-columns:repeat(13,minmax(0,1fr));gap:4px}
.obs-token{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;min-height:58px;padding:6px 2px;border:1px solid var(--line);border-radius:5px;background:var(--table);color:var(--muted);font:10px/1.3 ui-monospace,monospace;overflow-wrap:anywhere}
.obs-token b{font-size:16px}.obs-token small{font-size:9px}.obs-token.is-legal{background:#16765F;color:white;border-color:#16765F}
.obs-prefix{font:12px/1.8 ui-monospace,monospace;padding:14px;background:var(--table);border-radius:8px;margin:14px 0;overflow-wrap:anywhere}
.obs-step-help{font-size:13px}.obs-semantic{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.6;background:var(--table);border-radius:8px;padding:14px;margin:18px 0}
.obs-card-row{flex-wrap:wrap}.obs-hidden{flex-wrap:wrap}
@media(max-width:1100px){.obs-layout{grid-template-columns:1fr}.obs-board{position:relative;top:auto;max-height:none;width:100%;max-width:460px;justify-self:center}}
@media(max-width:600px){.obs-token-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.obs-card-tokens{grid-template-columns:repeat(13,minmax(38px,1fr));gap:4px;overflow-x:auto;padding:4px 3px 10px;overscroll-behavior-x:contain}.obs-token{font-size:11px;min-height:64px}.obs-card-tokens .obs-token{white-space:nowrap;overflow-wrap:normal}.obs-token small{font-size:10px}.obs-token b{font-size:16px}.obs-board{padding:14px}.obs-zones{grid-template-columns:1fr}}

/* One example tab owns both the visible table and its observation/action values. */
.obs-example-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;width:100%;padding:5px;margin:0 0 32px;background:var(--table);border-radius:12px}
.obs-example-tab{min-width:0;padding:12px 24px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-family:inherit;font-size:14px;line-height:1.4;font-weight:600;cursor:pointer}
.obs-example-tab[aria-selected=true]{background:var(--panel);color:var(--ink);box-shadow:0 1px 4px #00000012}
.obs-example-tab:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.obs-representation h4{font-size:14px;margin:0 0 14px}
.obs-encoded-tokens{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}
.obs-encoded-token{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;min-height:65px;padding:8px 2px;border:1px solid var(--line);border-radius:6px;background:var(--table);font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.obs-encoded-token small{font-size:10px;line-height:1.3;overflow-wrap:anywhere}.obs-encoded-token b{font-size:20px}
.obs-encoded-token.is-pad{border-style:dashed;background:transparent;color:var(--muted)}
.obs-action-vector{display:block;font-size:13px;margin-top:10px;overflow-wrap:anywhere}
.obs-mask-details{margin-top:16px}.obs-mask-details>summary:after{margin-left:auto}.obs-mask-details[open]{padding-bottom:20px}
.obs-mask-label{display:block;font-size:12px;color:var(--muted);margin:12px 0 8px}
.obs-mask-details .obs-token.is-legal{cursor:default}
.obs-playing-card.is-source{transform:translateY(-3px)}
@media(max-width:600px){.obs-example-tabs{width:100%}.obs-example-tab{flex:1;min-width:0;padding:12px 8px}.obs-encoded-tokens{gap:4px}.obs-encoded-token small{font-size:9px}.obs-encoded-token b{font-size:17px}}

/* One board beside both spaces: observation above, action below. */
.obs-observation>.obs-heading,.obs-actions>.obs-heading{margin-bottom:24px}
.obs-observation>.obs-heading h3,.obs-actions>.obs-heading h3{font-size:22px;letter-spacing:-.02em}

.obs-action-layout{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}
.obs-action-example{padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:12px;text-align:center}
.obs-example-label{font-size:12px;font-weight:600;color:var(--muted);margin:0 0 20px}
.obs-action-example .obs-card-row{gap:10px}
.obs-action-example .obs-playing-card.sc-card{width:64px;height:90px;padding:7px;font-size:29px;border-radius:7px}
.obs-action-example .obs-playing-card.sc-card b{width:29px}
.obs-action-example .obs-small-suit{width:14px;height:14px;margin:4px 0 0 3px}
.obs-action-example .sc-center{width:32px;height:32px;right:5px;bottom:6px}
.obs-swap-arrow{font-size:24px;color:var(--muted)}
.obs-semantic{margin-bottom:0}
.obs-representation{min-width:0;padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.obs-hidden .obs-back+.obs-back{margin-left:-8px}
@media(min-width:601px){
 .obs-action-example{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 24px;text-align:left}
 .obs-action-example .obs-card-row{grid-column:1;grid-row:1 / 3}
 .obs-action-example .obs-example-label{grid-column:2;align-self:end;margin:0}
 .obs-action-example .obs-note{grid-column:2;align-self:start;margin:0}
}
@media(max-width:600px){

 .obs-action-layout{grid-template-columns:1fr;gap:24px}
 .obs-observation>.obs-heading h3,.obs-actions>.obs-heading h3{font-size:20px}
 .obs-example-tabs{margin-bottom:24px}
}

/* Observation and Action share an open section shell and the same data surfaces. */
.obs-actions{margin:48px 0 0;padding:0;background:none;border:0;border-radius:0;min-width:0}
.obs-intro{margin:0 0 28px}
.obs-action-layout{gap:16px}
.obs-view .obs-note:last-child{margin-bottom:0}
.obs-observation>.obs-heading,.obs-actions>.obs-heading{margin-bottom:28px}
.obs-heading h3{font-weight:650}
.obs-bit,.obs-rank{font-size:11px}
.obs-phase .obs-bit{font-size:18px}
.obs-meta-hint{white-space:nowrap}
@media(max-width:600px){
 .obs-actions{margin-top:40px}
 .obs-phase,.obs-action-example,.obs-representation{padding:16px}
 .obs-meta,.obs-mask-details{padding-inline:16px}
 .obs-observation>.obs-heading,.obs-actions>.obs-heading{margin-bottom:20px}
}