@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600&family=ZCOOL+QingKe+HuangYou&display=swap";:root{--bg: #f6efe6;--bg-accent: #ecdcc8;--ink: #2a2a2a;--muted: #5b524a;--accent: #2f6f73;--accent-2: #c46a3a;--panel: #fbf7f0;--grid: #9a8777;--grid-soft: #c7b6a4;--shadow: rgba(46, 32, 18, .22)}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Plus Jakarta Sans,Noto Sans SC,sans-serif;color:var(--ink);background:radial-gradient(1200px circle at 18% 8%,#ffffff,var(--bg)),radial-gradient(900px circle at 84% 12%,#efe0cf,var(--bg-accent))}body:before{content:"";position:fixed;inset:-20% 0 auto auto;width:520px;height:520px;background:conic-gradient(from 120deg,#2f6f731f,#c46a3a1a,#2f6f730a);opacity:.45;filter:blur(.5px);pointer-events:none}.page{max-width:1200px;margin:0 auto;padding:32px clamp(16px,4vw,40px) 48px}.hero{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(16px,3vw,28px);align-items:center;margin-bottom:28px}.hero-copy h1{font-family:ZCOOL QingKe HuangYou,Noto Sans SC,cursive;font-size:clamp(2.4rem,4.6vw,4.2rem);margin:6px 0 12px;letter-spacing:.03em}.kicker{text-transform:uppercase;letter-spacing:.22em;font-size:.75rem;color:var(--muted);margin:0}.sub{margin:0;max-width:32rem;line-height:1.6;color:var(--muted)}.panel{background:var(--panel);border-radius:18px;padding:18px 20px;border:1px solid rgba(59,42,28,.08);box-shadow:0 12px 26px var(--shadow);display:grid;gap:18px}.status-row{display:flex;align-items:center;justify-content:space-between;font-size:.95rem;padding:6px 0;border-bottom:1px dashed rgba(0,0,0,.08)}.status-row:last-child{border-bottom:none}.label{color:var(--muted)}.value{font-weight:600;display:inline-flex;align-items:center;gap:8px}.value:before{content:"";width:10px;height:10px;border-radius:999px;background:var(--grid-soft);border:1px solid rgba(0,0,0,.12)}.value[data-player=black]:before{background:#1f1f1f;border-color:#1f1f1f}.value[data-player=white]:before{background:#f7f2ea;border-color:#0000004d}.value[data-player=none]:before{background:var(--grid-soft);border-color:#0000001a}.btn{border:none;border-radius:999px;padding:10px 18px;font-size:.95rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--accent),#295257);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 10px 16px #2f6f7340}.btn.secondary{background:linear-gradient(135deg,var(--accent-2),#9f512a);box-shadow:0 10px 16px #c46a3a40}.btn.ghost{background:transparent;color:var(--accent);border:1px solid rgba(47,111,115,.45);box-shadow:none}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0);box-shadow:none}.controls{display:grid;gap:12px}.control-row{display:grid;gap:8px}.control-group{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center}.select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(59,42,28,.25);border-radius:12px;padding:10px 12px;font-size:.95rem;font-weight:600;color:var(--ink);background:#fff}.hint{margin:0;color:var(--muted);font-size:.85rem}.button-row{display:flex;gap:10px;flex-wrap:wrap}.project-link{color:var(--accent);font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px}.project-link:after{content:"↗";font-size:.85em}.project-link:hover{text-decoration:underline}.board-area{display:flex;justify-content:center}.board-card{width:min(92vw,780px);padding:clamp(14px,2vw,22px);background:var(--panel);border-radius:24px;border:1px solid rgba(59,42,28,.08);box-shadow:0 18px 36px var(--shadow);display:grid;gap:14px;justify-items:center}#board-canvas{width:100%;height:auto;aspect-ratio:1 / 1;border-radius:18px;background:linear-gradient(145deg,#f7efe5,#ede0d0);display:block;touch-action:none}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--muted);justify-content:center}.legend-item{display:inline-flex;align-items:center;gap:8px}.line{width:28px;height:0;border-top:2px solid var(--grid)}.line.dashed{border-top-style:dashed}@media (max-width: 860px){.hero{grid-template-columns:1fr}.panel{order:2}}