:root{
  --bg:#f3f5f9; --card:#fff; --ink:#1f2733; --muted:#8a93a3; --line:#e8ebf1;
  --brand:#1f9d6b; --brand-d:#178055; --accent:#2f6fed;
  --sidebar:#1c2b27; --sidebar-2:#16221f; --side-ink:#c8d3cf; --side-active:#27c08a;
  --top:#e7f7ef; --top-ink:#178055; --mid:#fff4e2; --mid-ink:#b5791f; --none:#eef0f5;
  --pos:#178055; --neg:#c0392b; --danger:#c0392b;
  --shadow:0 1px 2px rgba(20,30,60,.06),0 6px 22px rgba(20,30,60,.05);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit}
.muted{color:var(--muted)}
code{background:#eef1f6;padding:1px 5px;border-radius:4px;font-size:12px}

/* ---------- layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:210px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));
  color:var(--side-ink);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.logo{display:flex;align-items:center;gap:10px;padding:18px 18px;border-bottom:1px solid rgba(255,255,255,.06)}
.logo-mark{background:var(--side-active);color:#06281c;font-weight:800;border-radius:8px;padding:5px 8px;font-size:13px;letter-spacing:.5px}
.logo-text{font-weight:700;color:#fff;font-size:15px}
.sidebar nav{padding:10px;display:flex;flex-direction:column;gap:2px;flex:1}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;
  color:var(--side-ink);text-decoration:none;font-weight:600;font-size:14px}
.nav-item .ic{width:20px;text-align:center}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--side-active);color:#06281c}
.side-foot{padding:14px 18px;font-size:11px;color:rgba(255,255,255,.35);border-top:1px solid rgba(255,255,255,.06)}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;background:var(--card);
  padding:14px 24px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.page-title{font-size:17px;font-weight:700}
.user-box{display:flex;align-items:center;gap:14px;font-size:13px}
.user-box .bal{color:var(--brand);font-weight:700}
.user-box .logout{color:var(--muted);text-decoration:none}
.user-box .logout:hover{color:var(--danger)}
.content{padding:22px 24px;max-width:1200px;width:100%}

.flash{margin:14px 24px 0;padding:10px 14px;border-radius:9px;font-size:13px}
.flash.ok{background:var(--top);color:var(--top-ink)}
.flash.err{background:#fdecec;color:var(--danger)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
.card{background:var(--card);border-radius:13px;padding:16px 18px;box-shadow:var(--shadow)}
.card.hl{background:linear-gradient(135deg,#1f9d6b,#178055);color:#fff}
.c-label{font-size:12px;color:var(--muted)}
.card.hl .c-label{color:rgba(255,255,255,.85)}
.c-num{font-size:26px;font-weight:800;margin:4px 0 2px}
.c-sub{font-size:12px;color:var(--muted)}
.card.hl .c-sub{color:rgba(255,255,255,.85)}

/* ---------- panels ---------- */
.panel{background:var(--card);border-radius:13px;padding:18px;box-shadow:var(--shadow);margin-bottom:16px}
.panel h3{margin:0 0 12px;font-size:15px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.collapse{display:none}
.collapse.show{display:block}

/* ---------- toolbar / forms ---------- */
.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.form-inline{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.form-col{display:flex;flex-direction:column;gap:10px;max-width:320px}
.form-col label,.form-inline label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}
.filter{margin-left:auto}
input,select,textarea{padding:9px 11px;border:1px solid var(--line);border-radius:9px;font:inherit;background:#fbfcfe;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand);background:#fff}
textarea{width:100%;resize:vertical;font-family:inherit}

.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 15px;border-radius:9px;cursor:pointer;font:inherit;font-weight:600}
.btn:hover{border-color:#c7cede}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d)}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
.link{background:none;border:0;color:var(--accent);cursor:pointer;font:inherit;padding:0;text-decoration:none}
.link:hover{text-decoration:underline}
.link.danger{color:var(--danger)}
.link.tiny{font-size:12px}
.inline{display:inline}

/* ---------- tables ---------- */
table.data{width:100%;border-collapse:collapse;font-size:13px}
table.data th,table.data td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
table.data th{background:#f7f9fc;color:var(--muted);font-weight:600;white-space:nowrap}
table.data tbody tr:hover{background:#fafcff}
table.data td.num{font-variant-numeric:tabular-nums}
td.pos{color:var(--pos);font-weight:700}
td.neg{color:var(--neg);font-weight:700}
.empty{text-align:center;color:var(--muted);padding:26px}
.ops{display:flex;gap:10px;align-items:center;white-space:nowrap}
.edit-row{display:none}
.edit-row.show{display:block}
tr.edit-row.show{display:table-row}
.edit-row td{background:#f7f9fc}
table.mini{width:100%;border-collapse:collapse;font-size:13px}
table.mini td{padding:7px 6px;border-bottom:1px solid var(--line)}

.badge{display:inline-block;min-width:26px;text-align:center;padding:2px 8px;border-radius:7px;font-weight:700;font-size:12px}
.badge.top{background:var(--top);color:var(--top-ink)}
.badge.mid{background:var(--mid);color:var(--mid-ink)}
.badge.none{background:var(--none);color:var(--muted)}
.up{color:var(--pos);font-weight:700}.down{color:var(--neg);font-weight:700}.flat{color:var(--muted)}

/* distribution */
.dist{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.dist-row{display:flex;align-items:center;gap:10px}
.dist-k{width:74px;font-size:12px;font-weight:600}
.dist-k.top{color:var(--top-ink)}.dist-k.mid{color:var(--mid-ink)}.dist-k.none{color:var(--muted)}
.bar{flex:1;height:10px;background:#eef1f6;border-radius:6px;overflow:hidden}
.bar i{display:block;height:100%}
.bar i.top{background:var(--brand)}.bar i.mid{background:#e9a23b}.bar i.none{background:#c4ccd8}
.dist-row b{width:34px;text-align:right}
.quick{display:flex;gap:10px}

.spin{display:inline-block;width:13px;height:13px;border:2px solid #cfe7dd;border-top-color:var(--brand);border-radius:50%;animation:sp .7s linear infinite;vertical-align:middle}
@keyframes sp{to{transform:rotate(360deg)}}

/* ---------- login ---------- */
.login-body{display:grid;place-items:center;min-height:100vh;background:linear-gradient(135deg,#1c2b27,#16221f)}
.login-card{background:#fff;border-radius:16px;padding:34px 30px;width:min(92vw,360px);box-shadow:0 18px 50px rgba(0,0,0,.3);text-align:center}
.login-logo .logo-mark{font-size:18px;padding:8px 12px}
.login-card h1{font-size:20px;margin:14px 0 2px}
.login-card .sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.login-card form{display:flex;flex-direction:column;gap:12px;text-align:left}
.login-card label{display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted)}
.login-err{background:#fdecec;color:var(--danger);padding:9px;border-radius:8px;font-size:13px;margin-bottom:12px}
.login-foot{color:var(--muted);font-size:12px;margin-top:16px}

@media(max-width:820px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .sidebar{width:64px}.logo-text,.nav-item span:last-child,.side-foot{display:none}
}