:root{
    --bg:#eef1f5; --surface:#ffffff; --surface-2:#f7f9fb;
    --border:#e1e5ea; --border-strong:#cfd5dd;
    --text:#1b2330; --muted:#697586; --faint:#9aa4b2;
    --primary:#2f5fe0; --primary-d:#2850c4; --primary-soft:#eaf0fe;
    --danger:#d6453b; --danger-soft:#fdecea;
    --ok:#1f9d6b; --ok-soft:#e7f6ef; --warn:#b7791f; --warn-soft:#fbf3e2;
    --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
    --shadow-lg:0 10px 30px rgba(16,24,40,.14);
    --radius:9px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
    font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
    background:var(--bg); color:var(--text); font-size:14px; line-height:1.45;
    -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
button{font-family:inherit;cursor:pointer}
input,select{font-family:inherit;font-size:14px}

/* ---------- brand ---------- */
.brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;
    background:var(--primary);color:#fff;font-weight:700;font-size:16px;letter-spacing:-.5px}
.brand-mark.sm{width:30px;height:30px;font-size:13px;border-radius:8px}
.brand-name{font-weight:700;font-size:17px;letter-spacing:-.3px}
.brand-sub{color:var(--muted);font-size:12.5px}

/* ---------- login ---------- */
.login{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:18px;padding:24px;background:
        radial-gradient(1200px 500px at 50% -10%, #ffffff 0%, var(--bg) 60%);}
.login-card{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--border);
    border-radius:14px;padding:28px;box-shadow:var(--shadow-lg)}
.login-foot{color:var(--faint);font-size:12px}
.field{display:block;margin-bottom:14px}
.field>span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:500}
.field input,.field select,.input{width:100%;padding:10px 12px;border:1px solid var(--border-strong);
    border-radius:8px;background:#fff;color:var(--text);transition:border .15s,box-shadow .15s}
.field input:focus,.field select:focus,.input:focus{outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px var(--primary-soft)}
.form-error{color:var(--danger);font-size:13px;margin-top:10px;min-height:18px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:8px;
    border:1px solid var(--border-strong);background:#fff;color:var(--text);font-weight:500;font-size:13.5px;
    transition:background .15s,border .15s,transform .05s}
.btn:active{transform:translateY(1px)}
.btn:hover{background:var(--surface-2)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-danger{background:#fff;border-color:var(--border-strong);color:var(--danger)}
.btn-danger:hover{background:var(--danger-soft);border-color:var(--danger)}
.btn-ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn-ghost:hover{background:var(--surface-2);color:var(--text)}
.btn-block{width:100%;justify-content:center;margin-top:6px}
.btn-sm{padding:5px 9px;font-size:12.5px}
.icon-btn{border:none;background:transparent;padding:6px;border-radius:7px;color:var(--muted);display:grid;place-items:center}
.icon-btn:hover{background:var(--surface-2);color:var(--text)}
.icon-btn.danger:hover{background:var(--danger-soft);color:var(--danger)}

/* ---------- topbar ---------- */
.app{min-height:100%;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:20px;padding:0 20px;height:58px;background:var(--surface);
    border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.topbar-brand{display:flex;align-items:center;gap:9px}
.tabs{display:flex;gap:4px;margin-left:8px}
.tab{border:none;background:transparent;padding:8px 14px;border-radius:8px;color:var(--muted);font-weight:500;font-size:14px}
.tab:hover{background:var(--surface-2);color:var(--text)}
.tab.active{background:var(--primary-soft);color:var(--primary-d);font-weight:600}
.topbar-user{margin-left:auto;display:flex;align-items:center;gap:12px}
.user-name{color:var(--muted);font-size:13px}

/* ---------- content ---------- */
.content{flex:1;padding:22px;max-width:1280px;width:100%;margin:0 auto}
.page-head{display:flex;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.page-title{font-size:19px;font-weight:700;letter-spacing:-.3px}
.page-title .count{color:var(--faint);font-weight:500;font-size:14px;margin-left:8px}
.toolbar{display:flex;align-items:center;gap:10px;margin-left:auto;flex-wrap:wrap}
.search{position:relative}
.search input{padding-left:34px;min-width:220px}
.search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--faint)}
.select{padding:9px 30px 9px 11px;border:1px solid var(--border-strong);border-radius:8px;background:#fff;
    appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23697586' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 9px center;cursor:pointer}

/* ---------- selection bar ---------- */
.selbar{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--primary-soft);
    border:1px solid #cfdcfb;border-radius:var(--radius);margin-bottom:14px}
.selbar .sel-count{font-weight:600;color:var(--primary-d)}
.selbar .spacer{margin-left:auto}

/* ---------- table ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:900px}
thead th{text-align:left;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);
    font-weight:600;padding:11px 14px;background:var(--surface-2);border-bottom:1px solid var(--border);white-space:nowrap}
tbody td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--surface-2)}
tbody tr.selected{background:var(--primary-soft)}
tbody tr.selected:hover{background:#e2ebfd}
.col-check{width:38px;text-align:center}
.col-actions{width:84px;text-align:right}
th.col-actions{text-align:right}
.cell-name{font-weight:600}
.cell-sub{color:var(--muted);font-size:12.5px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* family grouping */
.child-row td:nth-child(2){position:relative}
.tree{display:inline-flex;align-items:center;gap:7px;color:var(--faint)}
.tree-line{width:16px;height:1px;background:var(--border-strong);display:inline-block;margin-left:6px}
.pill{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:999px;font-size:11.5px;font-weight:600}
.pill-parent{background:var(--warn-soft);color:var(--warn)}
.pill-cat{background:var(--surface-2);color:var(--muted);border:1px solid var(--border)}
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:7px;font-size:12px;font-weight:600}
.badge-ok{background:var(--ok-soft);color:var(--ok)}
.badge-wait{background:var(--warn-soft);color:var(--warn)}
.date-range{white-space:nowrap}
.date-range .sep{color:var(--faint);margin:0 5px}
.muted{color:var(--muted)}
.empty{padding:48px;text-align:center;color:var(--muted)}
.empty svg{color:var(--border-strong);margin-bottom:10px}

input[type=checkbox]{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}

/* ---------- drawer ---------- */
.overlay{position:fixed;inset:0;background:rgba(16,24,40,.42);z-index:40;animation:fade .15s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.drawer{position:fixed;top:0;right:0;height:100%;width:440px;max-width:94vw;background:var(--surface);
    z-index:50;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:slide .2s ease}
@keyframes slide{from{transform:translateX(100%)}to{transform:translateX(0)}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}
.drawer-head h3{margin:0;font-size:16px}
.drawer-body{padding:22px;overflow-y:auto;flex:1}
.drawer-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.section-label{font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--faint);
    font-weight:600;margin:18px 0 10px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px}
.modal-card{background:var(--surface);border-radius:14px;box-shadow:var(--shadow-lg);width:100%;max-width:440px;
    animation:pop .15s ease}
@keyframes pop{from{transform:scale(.97);opacity:.6}to{transform:scale(1);opacity:1}}
.modal-head{padding:20px 22px 0}
.modal-head h3{margin:0 0 4px;font-size:16px}
.modal-head p{margin:0;color:var(--muted);font-size:13px}
.modal-body{padding:18px 22px}
.modal-foot{padding:0 22px 20px;display:flex;gap:10px;justify-content:flex-end}

/* ---------- toast ---------- */
.toast-root{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:60;display:flex;flex-direction:column;gap:8px}
.toast{padding:11px 16px;border-radius:9px;background:#1b2330;color:#fff;font-size:13.5px;box-shadow:var(--shadow-lg);
    animation:fade .15s ease;display:flex;align-items:center;gap:9px}
.toast.err{background:var(--danger)}
.toast.ok{background:var(--ok)}

.spinner{width:34px;height:34px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;
    animation:spin .7s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- responsive ---------- */
@media(max-width:720px){
    .content{padding:14px}
    .topbar{gap:10px;padding:0 12px}
    .brand-sub{display:none}
    .tabs{margin-left:0}
    .tab{padding:8px 10px;font-size:13px}
    .user-name{display:none}
    .toolbar{width:100%;margin-left:0}
    .search input{min-width:0;width:100%}
    .search{flex:1}
    .page-title{font-size:17px}
    .drawer{width:100%}
}