*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"Segoe UI","PingFang TC","Microsoft JhengHei",sans-serif;background:#f4f6f8;color:#222;line-height:1.5}
a{color:#0a66c2;text-decoration:none}
button{cursor:pointer;font:inherit}

/* ---- login ---- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0a66c2,#5aa1e3)}
.login-card{background:#fff;padding:36px 32px;border-radius:12px;width:340px;box-shadow:0 12px 40px rgba(0,0,0,.15)}
.login-card h1{font-size:20px;margin-bottom:6px}
.login-card .sub{color:#888;font-size:13px;margin-bottom:20px}
.login-card input{width:100%;padding:10px 12px;border:1px solid #d0d7de;border-radius:6px;margin-bottom:10px;font-size:14px}
.login-card button{width:100%;padding:10px;background:#0a66c2;color:#fff;border:none;border-radius:6px;font-size:15px;font-weight:600}
.login-card .err{color:#d33;font-size:13px;margin-bottom:10px}
.login-card .hint{color:#666;font-size:12px;margin-top:14px;text-align:center;line-height:1.7}

/* ---- shell ---- */
.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.side{background:#0f2540;color:#cfd8dc;padding:16px 0}
.side .brand{padding:0 20px 16px;border-bottom:1px solid #1c3557;margin-bottom:12px}
.side .brand h1{font-size:16px;color:#fff}
.side .brand .v{font-size:11px;color:#8a9db4;margin-top:2px}
.side nav a{display:block;padding:9px 20px;color:#cfd8dc;font-size:14px;border-left:3px solid transparent}
.side nav a:hover{background:#173458;color:#fff}
.side nav a.active{background:#173458;color:#fff;border-left-color:#4da3ff}
.side nav .badge{display:inline-block;background:#e53935;color:#fff;font-size:11px;padding:1px 6px;border-radius:8px;margin-left:6px}
.side .user{position:absolute;bottom:12px;padding:0 20px;font-size:12px;color:#8a9db4}
.main{padding:24px 32px;overflow:auto}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.topbar h2{font-size:20px}
.topbar .who{color:#666;font-size:13px}
.btn{display:inline-block;padding:6px 14px;background:#0a66c2;color:#fff;border:none;border-radius:5px;font-size:13px;font-weight:600}
.btn:hover{background:#084d95}
.btn.ghost{background:#fff;color:#0a66c2;border:1px solid #0a66c2}
.btn.warn{background:#e0a800}
.btn.danger{background:#d33}
.btn.small{padding:3px 8px;font-size:12px}
.btn+.btn{margin-left:6px}
.card{background:#fff;border-radius:8px;padding:18px 20px;box-shadow:0 1px 3px rgba(0,0,0,.06);margin-bottom:16px}
.card h3{font-size:15px;margin-bottom:12px;color:#333;border-bottom:1px solid #eee;padding-bottom:8px}

/* ---- table ---- */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:middle}
th{background:#f7f9fb;font-weight:600;color:#555;font-size:12px}
tr:hover{background:#fafcff}

/* ---- form ---- */
.form-row{display:flex;gap:12px;margin-bottom:12px;align-items:flex-start}
.form-row label{width:100px;padding-top:7px;color:#555;font-size:13px;flex-shrink:0}
.form-row .input,.form-row input,.form-row select,.form-row textarea{flex:1;padding:6px 10px;border:1px solid #d0d7de;border-radius:5px;font-size:13px;font-family:inherit}
.form-row textarea{min-height:80px;resize:vertical}
.chip{display:inline-block;padding:1px 8px;border-radius:10px;font-size:11px;background:#eef;color:#446}
.chip.open{background:#e6f7e6;color:#1a7a1a}
.chip.done{background:#eef;color:#446}
.chip.cancelled{background:#f7e6e6;color:#7a1a1a}
.chip.urgent{background:#ffe3e3;color:#c00}
.chip.high{background:#fff3d9;color:#a67200}
.chip.normal{background:#eef;color:#446}
.chip.low{background:#e4eef7;color:#245e88}

/* ---- issue detail ---- */
.stages{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:14px}
.stage{padding:8px 14px;border-radius:6px;background:#eef;font-size:12px;position:relative}
.stage.done{background:#e6f7e6;color:#1a7a1a}
.stage.active{background:#0a66c2;color:#fff;font-weight:600;box-shadow:0 2px 8px rgba(10,102,194,.35)}
.stage .who{display:block;font-size:10px;opacity:.85;margin-top:2px}
.event{padding:8px 12px;border-left:3px solid #ccd;margin-bottom:8px;font-size:13px;background:#fafcff}
.event .meta{color:#888;font-size:11px;margin-bottom:2px}
.event.kind-created{border-left-color:#0a66c2}
.event.kind-stage_done{border-left-color:#1a7a1a}
.event.kind-closed{border-left-color:#1a7a1a}
.event.kind-comment{border-left-color:#e0a800}
.event.kind-reassigned{border-left-color:#5a2ba6}
.event.kind-cancelled{border-left-color:#d33}

/* ---- workflow editor ---- */
.stage-editor{background:#fafcff;border:1px solid #e0e6ec;border-radius:6px;padding:10px;margin-bottom:8px;display:grid;grid-template-columns:40px 1fr 140px 1fr 40px;gap:8px;align-items:center}
.stage-editor input,.stage-editor select{padding:5px 8px;border:1px solid #d0d7de;border-radius:4px;font-size:13px}
.stage-editor .rmbtn{background:#f7e6e6;color:#a44;border:none;border-radius:4px;padding:5px;font-size:14px;cursor:pointer}

.empty{text-align:center;color:#888;padding:40px 0}