/* Painel administrativo de e-mail. CSS próprio, sem framework (§9).
   O /adm_node usa este mesmo arquivo — as telas têm de ser equivalentes (§11). */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #dfe3e8;
  --text: #1c2430;
  --muted: #667085;
  --accent: #1d4ed8;
  --ok: #15803d;
  --warn: #b45309;
  --error: #b91c1c;
  --radius: 6px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --surface: #1a2029;
    --border: #2c3542;
    --text: #e6eaf0;
    --muted: #94a3b8;
    --accent: #60a5fa;
    --ok: #4ade80;
    --warn: #fbbf24;
    --error: #f87171;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }

.mono { font-family: var(--mono); font-size: .92em; }
.muted { color: var(--muted); }
.big { font-size: 1.4rem; font-weight: 600; }

/* --- topo e navegação ---------------------------------------------------- */

.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .75rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar__brand { display: flex; align-items: center; gap: .5rem; }
.topbar__domain { display: flex; align-items: center; gap: .5rem; margin-left: auto; }
.topbar__domain label { color: var(--muted); font-size: .85rem; }
.topbar__user { display: flex; align-items: center; gap: .75rem; }

.shell { display: flex; align-items: flex-start; min-height: calc(100vh - 57px); }

.sidebar {
  width: 240px; flex: none;
  padding: 1rem .75rem;
  background: var(--surface);
  border-right: 1px solid var(--border);
  min-height: calc(100vh - 57px);
}
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar a {
  display: block; padding: .5rem .75rem; margin-bottom: .15rem;
  border-radius: var(--radius);
  color: var(--text); text-decoration: none;
}
.sidebar a:hover { background: var(--bg); }
.sidebar a.is-active { background: var(--accent); color: #fff; }

.content { flex: 1; padding: 1.5rem 2rem; max-width: 1100px; }
.content h1 { margin-top: 0; font-size: 1.5rem; }
.content h2 { font-size: 1.1rem; margin-top: 2rem; }
.content section { margin-bottom: 1rem; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.page-head h1 { margin-bottom: .25rem; }

.page-centered { display: grid; place-items: center; min-height: 100vh; padding: 1rem; }

/* --- cartões e blocos ---------------------------------------------------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.card--narrow { width: min(420px, 100%); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .75rem; }
.tile {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .9rem 1rem;
  display: flex; flex-direction: column; gap: .2rem;
}
.tile__value { font-size: 1.35rem; font-weight: 600; }
.tile__label { color: var(--muted); font-size: .82rem; }

.explainer { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.explainer > div {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .9rem 1rem;
}
.explainer p { margin: .35rem 0 0; color: var(--muted); font-size: .9rem; }

/* --- tabelas ------------------------------------------------------------- */

.table {
  width: 100%; border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.table th, .table td { padding: .6rem .75rem; text-align: left; border-bottom: 1px solid var(--border); }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
.table tbody tr:last-child td { border-bottom: none; }
.table--dense th, .table--dense td { padding: .4rem .6rem; font-size: .9rem; }
.table form { display: inline; }

/* --- formulários --------------------------------------------------------- */

.form { display: flex; flex-direction: column; gap: .4rem; }
.form--wide { max-width: 640px; }
.form--inline { flex-direction: row; align-items: center; flex-wrap: wrap; gap: .5rem; }
.form label { font-size: .85rem; color: var(--muted); margin-top: .5rem; }
.form label.check { margin-top: 0; color: var(--text); display: flex; align-items: center; gap: .4rem; }

input, select, textarea {
  font: inherit; color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: .45rem .6rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
input[readonly], textarea[readonly] { background: var(--bg); color: var(--muted); }
textarea { font-family: var(--mono); resize: vertical; }

fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: .75rem 1rem; margin: .75rem 0; }
legend { padding: 0 .35rem; font-size: .85rem; color: var(--muted); }

.input-group { display: flex; align-items: center; gap: .4rem; }
.input-group__suffix { color: var(--muted); font-family: var(--mono); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.filters { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.actions { display: flex; gap: .5rem; align-items: center; margin-top: 1rem; flex-wrap: wrap; }

.acl-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .25rem 0; }

.plain { list-style: none; margin: .5rem 0 0; padding: 0; }
.plain li { padding: .15rem 0; }

/* --- botões -------------------------------------------------------------- */

.btn {
  font: inherit; cursor: pointer;
  padding: .45rem .9rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text);
  text-decoration: none; display: inline-block;
}
.btn:hover { border-color: var(--accent); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--danger { border-color: var(--error); color: var(--error); }
.btn--danger:hover { background: var(--error); color: #fff; }
.btn--ghost { background: transparent; }
.btn--small { padding: .25rem .55rem; font-size: .85rem; }

/* --- sinalização --------------------------------------------------------- */

.badge {
  display: inline-block; padding: .1rem .45rem;
  border-radius: 999px; font-size: .75rem;
  background: var(--bg); border: 1px solid var(--border); color: var(--muted);
}
.badge--impl { background: var(--accent); border-color: var(--accent); color: #fff; }
.badge--active { color: var(--ok); border-color: var(--ok); }
.badge--suspended, .badge--warn { color: var(--warn); border-color: var(--warn); }
.badge--error { color: var(--error); border-color: var(--error); }

.usage { font-weight: 600; }
.usage--ok { color: var(--ok); }
.usage--warning { color: var(--warn); }
.usage--high, .usage--exhausted { color: var(--error); }

.meter { height: 8px; background: var(--bg); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); }
.meter__fill { height: 100%; background: var(--ok); }
.meter__fill--warning { background: var(--warn); }
.meter__fill--high, .meter__fill--exhausted { background: var(--error); }

.alert { padding: .7rem .9rem; border-radius: var(--radius); border: 1px solid var(--border); }
.alert--error { border-color: var(--error); color: var(--error); }
.alert--warn { border-color: var(--warn); color: var(--warn); }
.alert--info { border-color: var(--accent); color: var(--accent); }

.danger-zone { margin-top: 1.5rem; border: 1px solid var(--error); border-radius: var(--radius); padding: 1rem; }
.danger-zone summary { cursor: pointer; color: var(--error); font-weight: 600; }

@media (max-width: 860px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; min-height: 0; border-right: none; border-bottom: 1px solid var(--border); }
  .sidebar ul { display: flex; flex-wrap: wrap; gap: .25rem; }
  .content { padding: 1rem; }
  .grid-2, .explainer { grid-template-columns: 1fr; }
}