:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #f0f2f8;
  --border: #e3e6ef;
  --text: #1b1f33;
  --muted: #6b7190;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eceafd;
  --ok: #107a4a;
  --ok-bg: #e4f6ec;
  --err: #b42318;
  --err-bg: #fdeceb;
  --warn-bg: #fff4dd;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(20, 24, 50, .05), 0 4px 16px rgba(20, 24, 50, .04);
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f111a;
    --surface: #171a27;
    --surface-2: #1e2233;
    --border: #2a2f45;
    --text: #e8eaf4;
    --muted: #8d93b3;
    --accent: #8b85ff;
    --accent-hover: #a29dff;
    --accent-soft: #25254a;
    --ok: #55d69b;
    --ok-bg: #12301f;
    --err: #ff8a80;
    --err-bg: #3a1a1a;
    --warn-bg: #3a2f14;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { color-scheme: light dark; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.55rem; margin: 0 0 .25rem; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0 0 .9rem; }
p { margin: 0 0 .75rem; }
code, .mono { font-family: var(--mono); font-size: .88em; }
.muted { color: var(--muted); }

/* ---------- layout ---------- */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.15rem; padding: .25rem .6rem 1.2rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand svg { width: 28px; height: 28px; color: var(--accent); }
.nav a {
  display: flex; align-items: center; gap: .65rem;
  padding: .55rem .75rem; border-radius: 9px;
  color: var(--muted); font-weight: 500;
}
.nav a:hover { background: var(--surface-2); text-decoration: none; color: var(--text); }
.nav a.active { background: var(--accent-soft); color: var(--accent); }
.nav svg { width: 18px; height: 18px; flex: none; }
.sidebar .spacer { flex: 1; }
.me { padding: .75rem; border-top: 1px solid var(--border); font-size: .88rem; }
.me strong { display: block; word-break: break-all; }
.main { padding: 2rem clamp(1rem, 3vw, 2.5rem) 4rem; max-width: 1180px; width: 100%; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }

/* ---------- cards / tables ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card.flush { padding: 0; overflow: hidden; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; box-shadow: var(--shadow); }
.stat .n { font-size: 2rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.1; }
.stat .l { color: var(--muted); font-size: .88rem; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .7rem 1.1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); background: var(--surface-2); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td.actions { text-align: right; white-space: nowrap; }
td.dest { max-width: 340px; word-break: break-word; }
.empty { padding: 2.2rem 1rem; text-align: center; color: var(--muted); }

.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; background: var(--accent-soft); color: var(--accent); }
.badge.grey { background: var(--surface-2); color: var(--muted); }

/* ---------- forms ---------- */
label { display: block; font-weight: 600; font-size: .86rem; margin-bottom: .3rem; }
input[type=text], input[type=password], input[type=number], input[type=search], select, textarea {
  width: 100%;
  padding: .6rem .75rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
textarea { min-height: 4.5rem; resize: vertical; }
input:focus, select:focus, textarea:focus, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; align-items: end; }
.field-hint { font-size: .8rem; color: var(--muted); margin-top: .25rem; }
.inline { display: inline; }
.input-row { display: flex; gap: .4rem; }
.input-row .btn { flex: none; }
.at { display: flex; align-items: center; gap: .5rem; }
.at span { color: var(--muted); font-weight: 600; }
.toolbar { display: flex; gap: .75rem; flex-wrap: wrap; padding: 1rem 1.1rem; border-bottom: 1px solid var(--border); }
.toolbar input { flex: 1 1 220px; }
.toolbar select { flex: 0 1 220px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .55rem 1rem; border-radius: 9px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.danger { color: var(--err); }
.btn.danger.solid { background: var(--err); border-color: var(--err); color: #fff; }
.btn.small { padding: .3rem .65rem; font-size: .85rem; }

.flash { padding: .8rem 1rem; border-radius: 10px; margin-bottom: 1.25rem; font-weight: 500; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.error { background: var(--err-bg); color: var(--err); }
.note { background: var(--warn-bg); border-radius: 10px; padding: .75rem 1rem; font-size: .9rem; }

details.danger { border: 1px solid var(--err); border-radius: var(--radius); padding: .9rem 1.1rem; }
details.danger summary { cursor: pointer; font-weight: 600; color: var(--err); }
details.danger.compact { display: inline-block; text-align: left; }
details.danger .form-grid { margin-top: .9rem; }

hr { border: 0; border-top: 1px solid var(--border); margin: 1.1rem 0; }
.checks { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
label.check { display: inline-flex; align-items: center; gap: .4rem; font-weight: 500; margin: 0; }
label.check input { width: auto; }

.pager { display: flex; justify-content: space-between; align-items: center; padding: .8rem 1.1rem; border-top: 1px solid var(--border); font-size: .9rem; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.login-card { width: 100%; max-width: 380px; }
.login-card .brand { justify-content: center; padding-bottom: 1.4rem; font-size: 1.5rem; }
.login-card .card { padding: 1.75rem; }
.login-card .field + .field { margin-top: 1rem; }
.login-card .btn { width: 100%; margin-top: 1.25rem; padding: .7rem; }

/* ---------- mobile ---------- */
@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: .6rem; gap: .25rem; }
  .brand { padding: .25rem .5rem; }
  .nav { display: flex; flex-wrap: wrap; gap: .15rem; }
  .nav a span { display: none; }
  .sidebar .spacer, .me strong { display: none; }
  .me { border: 0; padding: 0 .5rem; margin-left: auto; }
  .main { padding-top: 1.25rem; }
}