:root{--bg: #f0f0f2;--paper: #ffffff;--card: #e7e6e2;--card-border: rgba(24, 22, 19, .1);--ink: #1c1b19;--ink-soft: #6b6862;--ink-faint: #9b9790;--line: rgba(24, 22, 19, .12);--accent-red: #b3241c;--board-dark: #3a3733;--board-light: #efe9de;--radius-s: 6px;--radius-m: 10px;--serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}button{font-family:inherit}.app-shell{min-height:100vh;padding:48px 32px 64px;display:flex;flex-direction:column;align-items:center;gap:40px}.app-header{text-align:center}.app-header h1{font-family:var(--serif);font-weight:600;font-size:28px;letter-spacing:.01em;margin:0}.app-header p{margin:6px 0 0;color:var(--ink-soft);font-size:13px;letter-spacing:.02em}.app-layout{display:grid;grid-template-columns:68px minmax(320px,560px) 300px;gap:36px;align-items:stretch;width:100%;max-width:1180px}.eval-column{display:flex;flex-direction:column;align-items:center;gap:12px}.eval-readout{min-width:56px;padding:6px 8px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-s);font-family:var(--serif);font-variant-numeric:tabular-nums;font-size:15px;font-weight:600;text-align:center;box-shadow:0 1px #18161308}.eval-bar{position:relative;flex:1;width:30px;min-height:220px;border-radius:15px;overflow:hidden;border:1px solid var(--line);background:var(--ink);box-shadow:inset 0 0 0 1px #ffffff05}.eval-bar-black{position:absolute;top:0;left:0;right:0;background:var(--ink);transition:height .24s ease}.eval-bar-white{position:absolute;bottom:0;left:0;right:0;background:#f5f4f1;transition:height .24s ease}.eval-bar-marker{position:absolute;left:0;right:0;height:2px;background:var(--accent-red);z-index:2;transition:bottom .24s ease}.board-column{display:flex;flex-direction:column;align-items:stretch;gap:14px;min-width:0}.board-frame{width:100%;border-radius:var(--radius-m);padding:14px;background:var(--paper);border:1px solid var(--card-border);box-shadow:0 1px 2px #1816130a}.banner{align-self:center;padding:7px 16px;border-radius:999px;background:var(--ink);color:var(--bg);font-size:12.5px;font-weight:500;letter-spacing:.02em}.setup-palette{display:flex;flex-direction:column;gap:10px;padding:14px 16px;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius-m)}.palette-row{display:flex;justify-content:space-between;gap:4px}.palette-row>div{display:flex;align-items:center;justify-content:center}.notice{align-self:center;color:var(--accent-red);font-size:12.5px;font-weight:500;text-align:center}.control-column{display:flex;flex-direction:column;gap:16px}.card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius-m);padding:14px;display:flex;flex-direction:column;gap:10px}.card-title{font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint)}.card-row{display:flex;gap:8px}.ctrl-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;padding:11px 6px 9px;background:var(--paper);border:1px solid var(--card-border);border-radius:var(--radius-s);color:var(--ink);font-size:11px;font-weight:500;letter-spacing:.01em;cursor:pointer;transition:border-color .15s ease,background .15s ease,color .15s ease,transform 80ms ease}.ctrl-btn svg{width:18px;height:18px}.ctrl-btn:hover:not(:disabled){border-color:#18161347}.ctrl-btn:active:not(:disabled){transform:translateY(1px)}.ctrl-btn:disabled{color:var(--ink-faint);cursor:default;opacity:.55}.ctrl-btn-primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}.ctrl-btn-primary:hover:not(:disabled){background:#2b2a27}.ctrl-btn-primary:disabled{background:var(--paper);color:var(--ink-faint);border-color:var(--card-border)}.side-btn{color:var(--ink-faint)}.side-btn-active{color:var(--ink);border-color:#1816134d;background:#fbfaf8}@media (max-width: 900px){.app-layout{grid-template-columns:1fr;justify-items:center;gap:24px}.eval-column{flex-direction:row-reverse;justify-content:center}.eval-bar{min-height:160px}.board-column,.control-column{width:100%;max-width:480px}}