:root{--bg:#fff7ec;--panel:#fffaf2;--panel-deep:#f3dfc3;--text:#2d1b12;--muted:#7e6047;--line:#d7b98f;--line-strong:#a97b4b;--wood:#6f3f24;--wood-dark:#3a2116;--wood-light:#9c6138;--fret-metal:#d8c3a5;--string:#f4e7d0;--accent:#c35b2e;--root:#e65f55;--shadow:0 18px 40px #4e2b1424;--radius:8px}*{box-sizing:border-box}body{color:var(--text);background:radial-gradient(circle at 0 0,#f1a23a33,#0000 28rem),linear-gradient(#fff7ec 0%,#f4dbc0 100%);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif}button,input,textarea,select{font:inherit}.page{max-width:1440px;margin:0 auto;padding:24px}.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;display:flex}.brand h1{margin:0;font-size:32px;line-height:1.1}.brand p{color:var(--muted);margin:8px 0 0;font-size:14px}.controls{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.language-control{border:1px solid var(--line);border-radius:var(--radius);background:#fff4e4b8;align-items:center;gap:6px;padding:4px;display:flex}.language-control span{color:var(--muted);padding:0 6px;font-size:13px;font-weight:800}.language-control button{background:0 0;border-color:#0000;padding:7px 10px}.language-control button.selected{background:var(--accent);color:#fffaf2;border-color:var(--accent)}button{border:1px solid var(--line);color:var(--text);border-radius:var(--radius);cursor:pointer;background:#fff4e4;padding:10px 14px;transition:all .2s}button:hover{transform:translateY(-1px);box-shadow:0 8px 18px #4e2b141f}button.primary{background:var(--accent);color:#fffaf2;border-color:var(--accent)}.layout{grid-template-columns:1fr;gap:18px;display:grid}.card{border-radius:var(--radius);box-shadow:var(--shadow);background:#fffaf2f0;border:1px solid #a97b4b59}.fretboard-card{padding:18px}.board-meta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.board-meta strong{font-size:16px}.board-meta span{color:var(--muted);font-size:13px}.fretboard-scroll{padding:10px 0 4px;overflow-x:auto}.fretboard{-webkit-user-select:none;user-select:none;background:linear-gradient(90deg, #ffffff0f, transparent 30%), linear-gradient(180deg, var(--wood-light) 0%, var(--wood) 48%, var(--wood-dark) 100%);border-radius:8px;grid-template-columns:62px repeat(15,80px);min-width:1262px;display:grid;overflow:visible}.corner,.fret-label{color:#f8e7ce;background:0 0;justify-content:center;align-items:center;height:58px;font-size:18px;font-weight:800;display:flex}.fret-label{color:#ffe8ca;background:#8e491fbd;border-radius:7px;place-self:center;width:40px;height:44px}.fret-label:empty{background:0 0}.string-label{color:#ffe8ca;z-index:4;background:linear-gradient(#8f4f2a,#5c321f);border:2px solid #ffe8ca57;border-radius:12px;justify-content:center;align-items:center;height:58px;margin:0 8px 0 0;font-size:16px;font-weight:800;display:flex;transform:translate(-8px);box-shadow:0 2px 5px #23140c52}.cell{background:radial-gradient(circle at 30% 34%,#ffe4b914,#0000 2px),radial-gradient(circle at 62% 72%,#2a181024,#0000 2px),linear-gradient(#0000 calc(50% - 1px),#43281a7a calc(50% - 1px) calc(50% + 1px),#0000 calc(50% + 1px));border-left:4px solid #b36027d1;height:58px;position:relative}.cell:before{content:"";background:var(--string);pointer-events:none;z-index:1;height:2px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);box-shadow:0 1px 2px #23140ca6}.cell[data-string="0"]:before,.cell[data-string="1"]:before{height:1px}.cell[data-string="2"]:before{height:2px}.cell[data-string="3"]:before{height:3px}.cell[data-string="4"]:before{height:4px}.cell[data-string="5"]:before{height:5px}.fret-wire{pointer-events:none;z-index:2;background:linear-gradient(90deg,#914e25,#cc7a36);width:4px;height:100%;position:absolute;top:0;left:-4px;box-shadow:2px 0 7px #23140c2e}.cell[data-fret="0"] .fret-wire{background:linear-gradient(90deg,#f6e4c8,#c9a77e);width:7px;left:0;right:auto}.inlay{pointer-events:none;display:none}.cell[data-string="2"][data-fret="3"] .inlay,.cell[data-string="2"][data-fret="5"] .inlay,.cell[data-string="2"][data-fret="7"] .inlay,.cell[data-string="2"][data-fret="9"] .inlay,.cell[data-string="2"][data-fret="15"] .inlay{z-index:0;background:#ffe6bfdb;border-radius:999px;width:24px;height:24px;display:block;position:absolute;top:100%;left:50%;transform:translate(-50%,-50%);box-shadow:inset 0 1px 2px #ffffff80,0 1px 4px #23140c52}.cell[data-string="1"][data-fret="12"] .inlay,.cell[data-string="4"][data-fret="12"] .inlay{z-index:0;background:#ffe6bfdb;border-radius:999px;width:22px;height:22px;display:block;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:inset 0 1px 2px #ffffff80,0 1px 4px #23140c52}.fret-btn{border-radius:var(--radius);width:calc(100% - 8px);height:calc(100% - 8px);box-shadow:none;z-index:3;background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:flex;position:absolute;inset:4px}.fret-btn:hover{background:#fffaf214;transform:none}.dot{color:#0000;background:0 0;border:2px solid #0000;border-radius:999px;justify-content:center;align-items:center;width:43px;height:43px;font-size:15px;font-weight:900;transition:all .18s;display:flex}.dot.active{background:var(--accent);color:#fffaf2;border-color:#fffaf2bf;outline:4px solid #fffaf2d9;box-shadow:0 0 0 7px #c35b2e73,0 9px 18px #23140c59}.dot.root{background:var(--root);color:#fffaf2;outline-color:#fffaf2;box-shadow:0 0 0 7px #e65f558c,0 9px 18px #23140c59}.side{grid-template-columns:minmax(220px,.7fr) minmax(240px,1fr) minmax(240px,1fr);align-items:start;gap:18px;padding:18px;display:grid}.result-title{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:0 0 6px;font-size:13px;font-weight:800}.main-chord{color:#8f3e20;margin:0 0 18px;font-size:44px;font-weight:900;line-height:1}.muted{color:var(--muted)}.block{border-left:1px solid var(--line);padding-left:18px}.pill-list{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.pill{border:1px solid var(--line);background:#fff4e4;border-radius:999px;align-items:center;gap:6px;padding:8px 10px;font-size:13px;font-weight:800;display:inline-flex}.candidate-list,.position-list{gap:8px;margin-top:10px;display:grid}.candidate,.position-item{border:1px solid var(--line);border-radius:var(--radius);background:#fff4e4;padding:11px 12px;font-size:14px;font-weight:800}.position-item{font-size:13px;font-weight:700}.helper,.footer-note{color:var(--muted);grid-column:1/-1;margin:0;font-size:13px;line-height:1.6}.footer-note{font-size:12px}.site-footer{color:var(--muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-top:22px;font-size:13px;font-weight:800;display:flex}.social-links{align-items:center;gap:8px;display:inline-flex}.site-footer a{color:#8f3e20;background:#fff4e4b8;border:1px solid #a97b4b59;border-radius:999px;justify-content:center;align-items:center;width:36px;height:36px;text-decoration:none;transition:all .2s;display:inline-flex}.site-footer a:hover{transform:translateY(-1px);box-shadow:0 8px 18px #4e2b141f}.site-footer svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.site-footer a:last-child svg{fill:currentColor;stroke:none}@media (width<=980px){.side{grid-template-columns:1fr}.block{border-left:0;border-top:1px solid var(--line);padding-top:16px;padding-left:0}}@media (width<=640px){.page{padding:16px}.brand h1{font-size:26px}.main-chord{font-size:34px}}