/* Postbox dashboard — one stylesheet, no build step. Light + dark via prefers-color-scheme. */
:root {
  --bg: #f5f6f8; --panel: #ffffff; --panel-2: #f0f2f5; --panel-3: #e8ebf0;
  --border: #e1e4ea; --border-strong: #cfd4dc;
  --text: #111827; --text-2: #374151; --muted: #6b7280;
  --accent: #2f5bea; --accent-2: #1f46c7; --accent-bg: #eaf0fe;
  --ok: #15803d; --ok-bg: #e7f6ec; --warn: #b45309; --warn-bg: #fdf3e2;
  --bad: #b91c1c; --bad-bg: #fdecec; --info: #1d4ed8; --info-bg: #e9effd;
  --radius: 10px; --radius-sm: 7px;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.07);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --side-w: 236px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1016; --panel: #141a22; --panel-2: #19202a; --panel-3: #212a36;
    --border: #262f3b; --border-strong: #34404f;
    --text: #e6ebf1; --text-2: #c3ccd7; --muted: #8b96a5;
    --accent: #6d8dfb; --accent-2: #8aa3ff; --accent-bg: #1a2442;
    --ok: #4ade80; --ok-bg: #0f2a1a; --warn: #fbbf24; --warn-bg: #2d2210;
    --bad: #f87171; --bad-bg: #2f1414; --info: #7aa2ff; --info-bg: #15203d;
    --shadow: 0 1px 2px rgba(0,0,0,.4);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 14px/1.5 var(--sans); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 20px; margin: 0; font-weight: 650; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0; font-weight: 600; }
h3 { font-size: 13px; margin: 0 0 6px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
p { margin: 0 0 8px; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }
pre { font-family: var(--mono); font-size: 12px; background: var(--panel-2); padding: 10px 12px; border-radius: var(--radius-sm); overflow: auto; margin: 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 16px 0; }
.ic { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; vertical-align: -3px; }
.ic.xs { width: 12px; height: 12px; vertical-align: -1px; }

/* ---------------------------------------------------------------- shell */
.shell { display: grid; grid-template-columns: var(--side-w) 1fr; min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; background: var(--panel); border-right: 1px solid var(--border); display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 8px; padding: 16px 16px 10px; color: var(--text); font-weight: 700; font-size: 16px; }
.brand:hover { text-decoration: none; }
.brand .logo { color: var(--accent); width: 22px; height: 22px; }
.env-chip { margin-left: auto; font-size: 10px; font-weight: 600; border: 1px solid var(--border); border-radius: 99px; padding: 0 7px; color: var(--muted); }
.nav { padding: 4px 8px 12px; flex: 1; }
.nav-section { font-size: 10.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); padding: 14px 10px 4px; font-weight: 600; }
.nav-item { display: flex; align-items: center; gap: 9px; padding: 6px 10px; border-radius: var(--radius-sm); color: var(--text-2); font-size: 13.5px; }
.nav-item .ic { width: 16px; height: 16px; color: var(--muted); }
.nav-item:hover { background: var(--panel-2); text-decoration: none; }
.nav-item.active { background: var(--accent-bg); color: var(--accent); font-weight: 600; }
.nav-item.active .ic { color: var(--accent); }
.nav-badge { margin-left: auto; background: var(--bad); color: #fff; border-radius: 99px; font-size: 10.5px; padding: 0 6px; }
.sidebar-foot { border-top: 1px solid var(--border); padding: 12px; display: grid; gap: 8px; }
.who { display: flex; align-items: center; justify-content: space-between; gap: 6px; overflow: hidden; }
.who a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-2); }
.main { min-width: 0; display: flex; flex-direction: column; }
.page-head { display: flex; align-items: center; gap: 12px; padding: 18px 28px 6px; }
.page-head-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex: 1; flex-wrap: wrap; }
.page-head .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.page-head .sub { color: var(--muted); font-size: 13px; margin-top: 2px; }
.content { padding: 12px 28px 48px; display: grid; gap: 16px; align-content: start; }
.nav-btn, .nav-scrim { display: none; }
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 40; left: 0; width: 260px; transform: translateX(-100%); transition: transform .18s ease; }
  .nav-toggle:checked ~ .shell .sidebar { transform: none; }
  .nav-toggle:checked ~ .shell .nav-scrim { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 30; }
  .nav-btn { display: inline-flex; cursor: pointer; padding: 6px; border-radius: 6px; border: 1px solid var(--border); background: var(--panel); }
  .page-head { padding: 14px 16px 4px; }
  .content { padding: 10px 16px 40px; }
}

/* ---------------------------------------------------------------- banners & flash */
.banner { display: flex; align-items: center; gap: 8px; padding: 8px 28px; font-size: 13px; border-bottom: 1px solid var(--border); }
.banner.dry { background: var(--warn-bg); color: var(--warn); }
.banner.kill { background: var(--bad); color: #fff; }
.banner.kill a { color: #fff; text-decoration: underline; margin-left: auto; }
.flashes { padding: 0 28px; display: grid; gap: 8px; }
.flash { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--panel); margin-top: 8px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.flash.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.flash.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; }
.flash.info { background: var(--info-bg); color: var(--info); border-color: transparent; }
.flash-x { background: none; border: 0; color: inherit; font-size: 18px; cursor: pointer; line-height: 1; }

/* ---------------------------------------------------------------- layout utilities */
.grid-2, .grid-3, .grid-4 { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .span-2 { grid-column: auto; } }
.stack { display: grid; gap: 12px; }
.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.gap { gap: 16px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.tiny { font-size: 11px; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 320px; }

/* ---------------------------------------------------------------- cards & stats */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 14px 16px 0; }
.card-sub { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.card-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.card-body { padding: 14px 16px 16px; }
.card-body > .tbl-wrap:first-child, .card-body > .tbl:first-child { margin-top: -4px; }
.stat { display: block; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); color: var(--text); }
a.stat:hover { border-color: var(--border-strong); text-decoration: none; }
.stat-label { color: var(--muted); font-size: 12px; font-weight: 500; }
.stat-value { font-size: 24px; font-weight: 650; letter-spacing: -.02em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat-hint { color: var(--muted); font-size: 12px; margin-top: 2px; }
.stat.ok .stat-value { color: var(--ok); } .stat.warn .stat-value { color: var(--warn); } .stat.bad .stat-value { color: var(--bad); }
.empty { text-align: center; padding: 28px 12px; color: var(--muted); }
.empty p { margin-bottom: 10px; }
.callout { border-radius: var(--radius-sm); padding: 10px 14px; background: var(--panel-2); border: 1px solid var(--border); font-size: 13px; }
.callout.warn { background: var(--warn-bg); border-color: transparent; color: var(--warn); }
.callout.bad { background: var(--bad-bg); border-color: transparent; color: var(--bad); }
.callout.ok { background: var(--ok-bg); border-color: transparent; color: var(--ok); }
.callout.info { background: var(--info-bg); border-color: transparent; color: var(--info); }
.callout strong { color: inherit; }

/* ---------------------------------------------------------------- badges */
.badge, .pill { display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px; font-weight: 600; padding: 1px 8px; border-radius: 99px; white-space: nowrap; line-height: 18px; }
.pill { background: var(--panel-2); color: var(--muted); font-weight: 500; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.info { background: var(--info-bg); color: var(--info); }
.badge.muted { background: var(--panel-2); color: var(--muted); }
.spec { display: inline-block; font-size: 10.5px; font-weight: 600; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; line-height: 16px; vertical-align: 1px; font-family: var(--mono); }
.bound { display: inline-flex; align-items: center; gap: 3px; font-size: 10.5px; font-weight: 600; color: var(--bad); background: var(--bad-bg); border-radius: 4px; padding: 0 5px; line-height: 16px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.bad { background: var(--bad); }

/* ---------------------------------------------------------------- tables */
.tbl-wrap { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th { text-align: left; font-weight: 600; font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: var(--panel-2); }
.tbl .num, .tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl td.actions { text-align: right; white-space: nowrap; }
.tbl.compact td, .tbl.compact th { padding: 5px 8px; }
.grid-cells td { text-align: center; }
.cell { display: inline-block; min-width: 44px; border-radius: 5px; padding: 1px 6px; font-weight: 600; font-size: 12px; }
.cell.ok { background: var(--ok-bg); color: var(--ok); } .cell.warn { background: var(--warn-bg); color: var(--warn); } .cell.bad { background: var(--bad-bg); color: var(--bad); } .cell.muted { background: var(--panel-2); color: var(--muted); }

/* ---------------------------------------------------------------- buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: 600 13px/1 var(--sans); padding: 8px 13px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--panel); color: var(--text); cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--panel-2); text-decoration: none; }
.btn .ic { width: 15px; height: 15px; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.danger:hover { filter: brightness(.94); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn.ghost:hover { background: var(--panel-2); }
.btn.sm { padding: 5px 9px; font-size: 12px; }
.btn.block { width: 100%; }
.btn[disabled], .btn.disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }
form.inline { display: inline; }

/* ---------------------------------------------------------------- forms */
.form { display: grid; gap: 14px; max-width: 760px; }
.form.wide { max-width: none; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: grid; gap: 5px; }
.field.check { display: flex; align-items: center; gap: 8px; }
.field-label { font-size: 12.5px; font-weight: 600; color: var(--text-2); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.field-help { font-size: 12px; color: var(--muted); }
.req { color: var(--bad); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=time], input[type=url], input[type=search], input[type=datetime-local], select, textarea {
  width: 100%; font: 13.5px/1.4 var(--sans); padding: 8px 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--panel); color: var(--text);
}
textarea { resize: vertical; }
textarea.mono { font-family: var(--mono); font-size: 12.5px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-bg); border-color: var(--accent); }
input:disabled, select:disabled, textarea:disabled { background: var(--panel-2); color: var(--muted); }
input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--accent); }
.form-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; }
.filters .field { min-width: 150px; }
.param-form { display: grid; gap: 12px; }
.confirm-type input { font-family: var(--mono); }

/* ---------------------------------------------------------------- kv, tabs, misc */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 4px; flex-wrap: wrap; }
.tabs a { padding: 8px 12px; color: var(--muted); font-weight: 600; font-size: 13px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.active { color: var(--text); border-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.timeline { display: grid; gap: 0; }
.timeline .ev { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.bar { height: 8px; background: var(--panel-3); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
.bar.ok > span { background: var(--ok); } .bar.warn > span { background: var(--warn); } .bar.bad > span { background: var(--bad); }
.sentence { font-size: 15px; font-weight: 600; }
.big-number { font-size: 34px; font-weight: 700; letter-spacing: -.02em; }
.msg { border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; background: var(--panel); }
.msg.out { background: var(--panel-2); }
.msg-head { display: flex; justify-content: space-between; gap: 8px; font-size: 12.5px; color: var(--muted); margin-bottom: 6px; }
.msg-body { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 13.5px; }
details summary { cursor: pointer; font-weight: 600; }
.flow-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.flow-card { display: grid; gap: 8px; align-content: start; background: var(--panel); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); color: var(--text); }
.flow-card:hover { border-color: var(--border-strong); border-left-color: var(--accent-2); text-decoration: none; transform: translateY(-1px); transition: transform .12s ease; }
.flow-card p { margin: 0; }
.flow-card-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--muted); }
.flow-card-meta strong { color: var(--text); font-variant-numeric: tabular-nums; }
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-card .brand { justify-content: center; padding: 0 0 16px; font-size: 20px; }