/* Explicit appearance roles, including the canvas and diagrams. */
:root{--theme-canvas:#f3f0e8;--theme-surface:#fcfbf8;--theme-ink:#292a2d;--theme-muted:#65615a;--theme-primary:#303238;--theme-accent:#80601d;--theme-line:#b9b2a4;--theme-selected:#e8e0cf;--theme-control:#e5e1d8;--theme-hover:#d8d0bf;--theme-onPrimary:#fff;--theme-board:#e8e2d6;--theme-stalk:#434650;--theme-right:#80601d;--theme-focus:#80601d}
:root{--paper:var(--theme-canvas);--paper-2:var(--theme-surface);--ink:var(--theme-ink);--ink-2:var(--theme-muted);--ink-3:var(--theme-muted);--line:var(--theme-line);--jade:var(--theme-primary);--cinnabar:var(--theme-accent);--cinnabar-2:var(--theme-accent);--control:var(--theme-control);--control-hover:var(--theme-hover)}
body{background:var(--theme-canvas);color:var(--theme-ink)}::selection{background:var(--theme-selected);color:var(--theme-ink)}input,textarea,select{caret-color:var(--theme-accent);accent-color:var(--theme-primary)}
.top{border-color:var(--theme-line)}.brand-seal{background:var(--theme-primary);color:var(--theme-onPrimary);border:0;border-radius:2px;transform:none}.brand-name{color:var(--theme-ink)}
.action-button.icon-action.action-primary{background:var(--theme-primary)!important;border-color:var(--theme-primary)!important;color:var(--theme-onPrimary)!important}.action-button.icon-action.action-primary:hover:not(:disabled){background:var(--theme-ink)!important;color:var(--theme-canvas)!important;border-color:var(--theme-ink)!important}
.action-button.icon-action,.action-button.icon-action.ghost{color:var(--theme-ink)!important;background:var(--theme-control)!important;border-color:var(--theme-line)!important}.action-button.icon-action.action-quiet,.minor-action .action-button.icon-action{background:transparent!important;color:var(--theme-muted)!important}.action-button.icon-action:disabled{background:var(--theme-control)!important;border-color:var(--theme-line)!important;color:var(--theme-muted)!important;opacity:.72}.action-button.icon-action:focus-visible,button:focus-visible,summary:focus-visible,a:focus-visible{outline-color:var(--theme-focus)}
.four-modes .mode{background:var(--theme-surface);border-color:var(--theme-line)}.four-modes .mode:has(input:checked){background:var(--theme-selected);border-color:var(--theme-primary)}.four-modes .mode strong{color:var(--theme-ink)}
.question-field textarea,.question-field textarea:focus,.lookup-question textarea,.close-ritual textarea{background:var(--theme-surface);color:var(--theme-ink);border-color:var(--theme-line)}textarea::placeholder,input::placeholder{color:var(--theme-muted);opacity:1}
.physical-box canvas,.snapshot-canvas{background:var(--theme-board);border-color:var(--theme-line)}.hand-demo{background:var(--theme-board)}.hex-line,.simple-yao,.hand-yao{background:var(--theme-primary)}.hex-line.is-moving,.simple-yao.moving,.hand-yao.moving{background:var(--theme-accent)}.hex-line.yin:after{background:var(--theme-canvas)}
.theme-menu{position:relative;flex-shrink:0;margin-left:20px;font:13px/1.5 var(--sans);z-index:35}.theme-menu>summary{min-height:44px;display:flex;align-items:center;gap:7px;cursor:pointer;list-style:none;color:var(--theme-ink)}.theme-menu>summary::-webkit-details-marker{display:none}.theme-menu>summary::after{content:none;font-size:15px}.theme-menu[open]>summary::after{content:none}
.theme-panel{position:absolute;right:0;top:48px;width:242px;background:var(--theme-surface);color:var(--theme-ink);border:1px solid var(--theme-line);border-radius:8px;padding:16px;box-shadow:0 8px 24px #00000024}.theme-panel h2{font:600 14px var(--sans);margin:0 0 10px}.theme-choice{width:100%;min-height:52px;display:flex;align-items:center;gap:11px;text-align:left;padding:9px;background:transparent;border:1px solid transparent;color:var(--theme-ink);border-radius:5px;font-size:14px}.theme-choice[aria-pressed=true]{background:var(--theme-selected);border-color:var(--theme-primary)}.theme-choice[aria-pressed=true]::after{content:'✓';margin-left:auto}.theme-swatches{display:flex;gap:2px}.theme-swatches i{display:block;width:14px;height:22px;border:1px solid #88888870}.theme-panel p{font-size:12px;color:var(--theme-muted);margin:12px 0 0}
@media(max-width:760px){.theme-menu{margin-left:8px}.top{gap:12px}.site-nav{background:var(--theme-surface);border-color:var(--theme-line)}.site-nav button.active{background:var(--theme-selected);color:var(--theme-primary)}.theme-panel{position:fixed;top:64px;right:14px}.mobile-learn{margin-left:auto}.brand{gap:9px}.brand-name{font-size:22px}.theme-menu>summary{font-size:13px}}