:root{
  --bg:#0f172a; --panel:#1e293b; --panel2:#334155; --fg:#e2e8f0;
  --muted:#94a3b8; --accent:#38bdf8; --accent2:#22d3ee;
  --danger:#f87171; --ok:#4ade80; --warn:#fbbf24;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased; overscroll-behavior:none;
}
body{display:flex;flex-direction:column;height:100dvh;overflow:hidden}
.view{flex:1;display:flex;flex-direction:column;min-height:0}
.hidden{display:none !important}
.err{color:var(--danger);margin:6px 0 0;min-height:1em}
.muted{color:var(--muted);font-size:12px}

/* LOGIN */
#view-login{justify-content:center;align-items:center;background:linear-gradient(160deg,#0f172a,#1e293b)}
.login-card{background:var(--panel);padding:32px 36px;border-radius:var(--radius);
  border:1px solid #334155;width:min(360px,92vw);box-shadow:0 10px 40px rgba(0,0,0,.4)}
.login-card h1{margin:0 0 4px;font-size:20px}
.login-card p{margin:0 0 18px}
.login-card label{display:block;margin:10px 0 4px;font-size:13px;color:var(--muted)}
.login-card input{width:100%;padding:10px 12px;background:#0b1224;border:1px solid #334155;
  color:var(--fg);border-radius:8px;font-size:14px}
.login-card input:focus{outline:none;border-color:var(--accent)}
.login-card button[type=submit]{margin-top:16px;width:100%;padding:10px;background:var(--accent);
  color:#042a3a;border:none;font-weight:600;border-radius:8px;cursor:pointer;font-size:14px}
.login-card button[type=submit]:hover{background:var(--accent2)}

/* HEADER + TABS */
#view-app header{padding:10px 16px;display:flex;align-items:center;gap:16px;
  border-bottom:1px solid #334155;background:#0b1224;flex-shrink:0}
#view-app header .brand{font-weight:600;letter-spacing:.5px}
.tabs{display:flex;gap:6px;flex:1}
.tab{background:transparent;color:var(--muted);border:1px solid #334155;
  padding:6px 14px;border-radius:8px;font-size:13px;cursor:pointer}
.tab:hover{color:var(--fg)}
.tab.active{color:var(--accent);border-color:var(--accent);background:rgba(56,189,248,.08)}
.user-bar{display:flex;align-items:center;gap:10px}
.user-bar button{background:transparent;color:var(--muted);border:1px solid #334155;
  padding:6px 10px;border-radius:8px;font-size:12px;cursor:pointer}
.user-bar button:hover{color:var(--fg)}

/* MAIN */
main{flex:1;overflow-y:auto;padding:18px 20px}
.panel{background:var(--panel);border-radius:var(--radius);padding:18px;border:1px solid #334155}
.panel + .panel{margin-top:16px}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.panel-head h2{margin:0;font-size:15px;font-weight:600}
.panel-head button{background:var(--panel2);color:var(--fg);border:1px solid #475569;
  padding:6px 12px;border-radius:8px;cursor:pointer;font-size:13px}
.panel-head button:hover{border-color:var(--accent);color:var(--accent)}
.panel-head .row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.panel-head label{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted)}
.panel-head input{background:#0b1224;color:var(--fg);border:1px solid #334155;
  padding:5px 8px;border-radius:6px;font-size:13px;width:auto}
.panel-head input[type=number]{width:80px}
.form-row label{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted);margin-right:8px}
.form-row input{background:#0b1224;color:var(--fg);border:1px solid #334155;
  padding:7px 10px;border-radius:6px;font-size:13px;width:auto}
.form-row input[type=number]{width:90px}
.form-row button{background:var(--accent);color:#042a3a;border:none;padding:7px 14px;
  border-radius:6px;font-size:13px;cursor:pointer;font-weight:600}
.form-row button:hover{background:var(--accent2)}

/* TABLES */
.table-wrap{overflow-x:auto;border:1px solid #334155;border-radius:10px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid #334155;vertical-align:middle}
th{background:#0b1224;font-weight:500;color:var(--muted);font-size:12px;letter-spacing:.3px}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#1a2540}
.kv input, .kv textarea{width:100%;background:#0b1224;color:var(--fg);border:1px solid #334155;
  padding:6px 8px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.kv textarea{resize:vertical;min-height:32px}
.kv .save-btn{background:var(--accent);color:#042a3a;border:none;padding:5px 12px;
  border-radius:6px;font-size:12px;cursor:pointer;margin-left:6px}
.kv .save-btn:hover{background:var(--accent2)}
.kv .save-btn:disabled{opacity:.4;cursor:not-allowed}
.kv .ts{font-size:11px;color:var(--muted);white-space:nowrap}

.tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;font-weight:600}
.tag-ok{background:rgba(74,222,128,.15);color:var(--ok)}
.tag-err{background:rgba(248,113,113,.15);color:var(--danger)}
.tag-on{background:rgba(74,222,128,.15);color:var(--ok)}
.tag-off{background:rgba(248,113,113,.15);color:var(--danger)}

.row-actions{display:flex;gap:6px}
.row-actions button{background:transparent;border:1px solid #334155;color:var(--fg);
  padding:4px 10px;border-radius:6px;font-size:12px;cursor:pointer}
.row-actions button:hover{border-color:var(--accent);color:var(--accent)}
.row-actions button.danger:hover{border-color:var(--danger);color:var(--danger)}

/* METRICS CARTS */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:14px}
.card{background:#0b1224;border:1px solid #334155;border-radius:10px;padding:12px 14px}
.card .v{font-size:22px;font-weight:600;color:var(--accent);margin-top:4px}
.card .l{color:var(--muted);font-size:11px;letter-spacing:.5px;text-transform:uppercase}
.chart-wrap{background:#0b1224;border:1px solid #334155;border-radius:10px;padding:10px}
canvas{display:block;width:100%;max-width:100%;height:240px}

/* MODAL */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;
  justify-content:center;align-items:center;z-index:50}
.modal-card{background:var(--panel);padding:20px 22px;border-radius:var(--radius);
  border:1px solid #334155;width:min(520px,92vw)}
.modal-card h3{margin:0 0 6px;font-size:16px}
.modal-card p{margin:0 0 12px;color:var(--muted);font-size:13px}
.modal-card input{width:100%;padding:10px 12px;background:#0b1224;color:var(--fg);
  border:1px solid #334155;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;margin-bottom:12px}
.modal-card .row.right{justify-content:flex-end;display:flex;gap:8px}
.modal-card button{background:var(--panel2);color:var(--fg);border:1px solid #475569;
  padding:7px 16px;border-radius:6px;cursor:pointer;font-size:13px}
.modal-card button.primary{background:var(--accent);color:#042a3a;border-color:var(--accent);font-weight:600}

/* TOAST */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);
  background:var(--panel);border:1px solid #334155;padding:10px 18px;border-radius:8px;
  font-size:13px;box-shadow:0 6px 20px rgba(0,0,0,.4);z-index:60;transition:opacity .2s}
.toast.err{border-color:var(--danger);color:var(--danger)}
.toast.ok{border-color:var(--ok);color:var(--ok)}

code{background:#0b1224;padding:1px 6px;border-radius:4px;font-size:12px}
/* "返回应用"：与普通按钮区分开——它是导航，不是危险操作 */
.btn-back {
  display: inline-block; padding: 6px 12px; border-radius: 8px; font-size: 13px;
  color: var(--fg); border: 1px solid #334155; text-decoration: none;
}
.btn-back:hover { border-color: var(--accent); color: var(--accent); }

/* 配置项：中文名是主体，原始 key 缩成小字（排障/对文档时还要用） */
.cfg-label { font-size: 13px; margin-bottom: 2px; }
.cfg-hint { font-size: 11.5px; color: var(--muted, #94a3b8); line-height: 1.5; }
.cfg-key { font-size: 11px; color: #64748b; }

/* 已废弃的配置项提示：说明"为什么当年改的没效果"，同时给出清理建议 */
.deprecated-note {
  margin: 0 0 12px; padding: 8px 12px; border-radius: 8px; font-size: 12.5px;
  line-height: 1.6; color: var(--warn, #fbbf24);
  border: 1px solid var(--warn, #fbbf24); background: rgba(251,191,36,.08);
}

/* 配置分组标题行 */
.cfg-group td {
  padding: 14px 8px 6px; font-size: 12.5px; font-weight: 600; letter-spacing: .04em;
  color: var(--accent); border-bottom: 1px solid #334155;
}
/* "刻意留在 .env 里"的说明：避免用户以为配置项漏了 */
.envonly-note {
  margin: 16px 0 0; padding: 10px 14px; border-radius: 8px; font-size: 12.5px;
  line-height: 1.7; color: var(--muted, #94a3b8); background: rgba(51,65,85,.25);
}
.envonly-note ul { margin: 6px 0 0; padding-left: 18px; }
.envonly-note code { color: var(--fg); }