:root{--bg:#f6f5f2;--card:#fff;--ink:#1f2933;--muted:#6b7280;--line:#e5e2dc;--accent:#3b6e8f;--red:#d64545;--yellow:#e0a800;--blue:#3578e5;--green:#2f9e5b;--gray:#8a8f98}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);padding-bottom:env(safe-area-inset-bottom)}
a{color:var(--accent)}
.top{position:sticky;top:0;z-index:5;display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;padding:10px 16px;padding-top:max(10px,env(safe-area-inset-top));background:var(--bg);border-bottom:1px solid var(--line)}
.top nav{display:flex;gap:14px}.top nav a{text-decoration:none;font-weight:600;font-size:15px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);text-decoration:none}.brand.big{font-size:24px;margin-bottom:8px}
.logo{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--accent);color:#fff;font-weight:700}
main{max-width:760px;margin:0 auto;padding:16px}
.login{max-width:440px;padding-top:12vh}
h1{font-size:22px;margin:8px 0}h2{font-size:18px;margin:20px 0 8px}h3{font-size:16px;margin:0 0 4px}
.muted{color:var(--muted)}.small{font-size:13px}
.box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:10px 0}
.private{border-left:4px solid #8b5cf6;background:#faf7ff}
.btn{display:inline-block;border:0;border-radius:10px;padding:10px 14px;font:inherit;font-weight:600;background:var(--accent);color:#fff;cursor:pointer;text-decoration:none;margin:4px 6px 4px 0}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}.btn.small{padding:6px 10px;font-size:14px}
.btn:disabled{opacity:.5}
textarea,input,select{width:100%;font:inherit;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
textarea{min-height:120px;resize:vertical}
label{display:block;font-weight:600;margin:12px 0 4px}
.types{display:grid;gap:8px}.types label{font-weight:400;display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:10px;background:#fff;margin:0}
.types input{width:auto;margin-top:4px}
.err{background:#fde8e8;color:#9b1c1c;border-radius:10px;padding:10px;margin:10px 0}
.pill{display:inline-block;border-radius:999px;padding:2px 10px;font-size:13px;font-weight:600;color:#fff}
.st-open{background:var(--red)}.st-discussion{background:var(--yellow);color:#3a2c00}.st-understood{background:var(--blue)}.st-agreed{background:var(--green)}.st-parked{background:var(--gray)}
.gcard{border-left:6px solid var(--gray)}.gcard.b-open{border-color:var(--red)}.gcard.b-discussion{border-color:var(--yellow)}.gcard.b-understood{border-color:var(--blue)}.gcard.b-agreed{border-color:var(--green)}
.msg{border-radius:14px;padding:10px 12px;margin:8px 0;max-width:88%;white-space:pre-wrap}
.msg.me{background:#e3eef6;margin-left:auto}.msg.them{background:#fff;border:1px solid var(--line)}
.turn{padding:8px 12px;border-radius:10px;background:#fff7db;font-weight:600}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.tabs{display:flex;gap:6px;margin:10px 0;overflow-x:auto}.tabs button{flex:0 0 auto;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:inherit;cursor:pointer}.tabs button.on{background:var(--ink);color:#fff}
.copy{display:flex;gap:6px}.copy input{font-size:13px}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;z-index:9}
ul.plain{padding-left:18px}
details summary{cursor:pointer;color:var(--accent);font-weight:600}