/* ---------- tokens ---------- */
:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-border: #e2e5ea;
  --color-text: #1a1d23;
  --color-text-muted: #6b7280;

  --color-primary: #2563eb;
  --color-primary-contrast: #ffffff;

  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-neutral: #6b7280;
  --color-info: #0ea5e9;

  --color-series-1: #f59e0b;
  --color-series-2: #10b981;
  --color-series-3: #0ea5e9;
  --color-series-4: #8b5cf6;
  --color-series-5: #14b8a6;

  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 24px; --space-6: 32px; --space-7: 48px;

  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #14161a;
    --color-surface: #1c1f26;
    --color-surface-raised: #232733;
    --color-border: #2c313d;
    --color-text: #f1f2f4;
    --color-text-muted: #9aa1ad;
  }
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  background: var(--color-bg);
  color: var(--color-text);
}
a { color: var(--color-primary); }
h1, h2, h3 { margin: 0 0 var(--space-3); line-height: 1.25; }
p { margin: 0 0 var(--space-3); }
.text-muted { color: var(--color-text-muted); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- layout ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-4); }
@media (min-width: 640px) { .container { padding: 0 var(--space-5); } }
.main { padding: var(--space-5) var(--space-4) var(--space-7); }
.page-title { font-size: 1.5rem; margin-bottom: var(--space-5); }

.topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); min-height: 56px; }
.topbar__brand { font-weight: 600; text-decoration: none; color: var(--color-text); }
.topbar__nav { display: flex; align-items: center; gap: var(--space-3); }
.topbar__nav form { margin: 0; }
.topbar__user { display: none; color: var(--color-text-muted); font-size: .9rem; }
@media (min-width: 640px) { .topbar__user { display: inline; } }

/* ---------- avatar & account menu ---------- */
.avatar {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  object-fit: cover;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: .8rem; font-weight: 600; letter-spacing: .02em;
}
.menu { position: relative; }
.menu__button { list-style: none; cursor: pointer; border-radius: 50%; display: inline-flex; }
.menu__button::-webkit-details-marker { display: none; }
.menu[open] .menu__button .avatar { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.menu__panel {
  position: absolute; right: 0; top: calc(100% + var(--space-2));
  min-width: 240px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-2) 0;
  z-index: 20;
}
.menu__header { display: flex; flex-direction: column; gap: 2px; padding: var(--space-2) var(--space-4) var(--space-3); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-2); font-size: .9rem; }
.menu__header .pill { align-self: flex-start; margin-top: var(--space-1); }
.menu__panel form { margin: 0; }
.menu__item {
  display: block; width: 100%; text-align: left;
  padding: var(--space-2) var(--space-4);
  font: inherit; color: var(--color-text); text-decoration: none;
  background: none; border: 0; cursor: pointer;
}
.menu__item:hover { background: color-mix(in srgb, var(--color-border) 40%, transparent); }
.menu__item--danger { color: var(--color-danger); }

/* ---------- card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}
.card__title { font-size: 1.25rem; }

.auth { display: grid; place-items: center; min-height: 70vh; }
.auth__card { width: 100%; max-width: 400px; text-align: center; }
.auth__card .btn { width: 100%; margin-top: var(--space-4); }

/* ---------- stat tile ---------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.stat-tile {
  display: flex; flex-direction: column; gap: var(--space-1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
  border-top: 3px solid var(--accent, var(--color-border));
}
.stat-tile__label { color: var(--color-text-muted); font-size: .8rem; }
.stat-tile__value { font-size: 1.75rem; font-weight: 600; display: block; }
.stat-tile__value small { font-size: 1rem; font-weight: 400; color: var(--color-text-muted); }
.stat-tile__meta { color: var(--color-text-muted); font-size: .85rem; }

/* ---------- notice ---------- */
.notice {
  --notice-color: var(--color-neutral);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--notice-color);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-4) 0;
  text-align: left;
}
.notice p:last-child { margin: 0; }
.notice--success { --notice-color: var(--color-success); }
.notice--warning { --notice-color: var(--color-warning); }
.notice--danger  { --notice-color: var(--color-danger); }
.notice--neutral { --notice-color: var(--color-neutral); }
.notice--info    { --notice-color: var(--color-info); }

/* ---------- status pill ---------- */
.pill {
  --pill-color: var(--color-neutral);
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: capitalize;
  color: var(--pill-color);
  border: 1px solid var(--pill-color);
  background: color-mix(in srgb, var(--pill-color) 12%, transparent);
}
.pill--success { --pill-color: var(--color-success); }
.pill--warning { --pill-color: var(--color-warning); }
.pill--danger  { --pill-color: var(--color-danger); }
.pill--neutral { --pill-color: var(--color-neutral); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit; font-weight: 500;
  text-decoration: none;
  cursor: pointer;
}
.btn--sm { padding: var(--space-1) var(--space-3); font-size: .875rem; }
.btn--primary { background: var(--color-primary); color: var(--color-primary-contrast); }
.btn--secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--danger { background: var(--color-danger); color: #fff; }
/* Microsoft brand button: white, grey border, logo + label. Not themed. */
.btn--microsoft { background: #ffffff; color: #5e5e5e; border-color: #8c8c8c; font-weight: 600; }

/* ---------- forms ---------- */
.form-row { display: grid; gap: var(--space-3); }
@media (min-width: 640px) { .form-row { grid-template-columns: 1fr auto; align-items: end; } }
@media (min-width: 900px) { .form-row { grid-template-columns: 1fr 160px auto auto; } }
@media (min-width: 640px) { .form-row--channel { grid-template-columns: 1fr 1fr; } .form-row--channel .field--submit { grid-column: 1 / -1; justify-self: start; } }
@media (min-width: 900px) { .form-row--channel { grid-template-columns: 200px 160px 1fr auto; } .form-row--channel .field--submit { grid-column: auto; } }
.field { display: flex; flex-direction: column; gap: var(--space-1); text-align: left; }
.field label { font-size: .85rem; font-weight: 500; color: var(--color-text-muted); }
.field input, .field select {
  font: inherit; color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  min-height: 40px;
}
.field input[aria-invalid="true"] { border-color: var(--color-danger); }
.field__error { color: var(--color-danger); font-size: .85rem; }
.field--submit .btn { min-height: 40px; }
.lookup-form { margin-bottom: var(--space-5); }
.section-title { font-size: 1.25rem; margin: var(--space-5) 0 var(--space-4); word-break: break-all; }
.lookup-meta { font-size: .85rem; margin: 0 0 var(--space-2); }

/* ---------- tables ---------- */
.record-group { padding: var(--space-4); margin-bottom: var(--space-4); }
.record-group__title { display: flex; align-items: center; gap: var(--space-2); font-size: 1rem; margin-bottom: var(--space-3); }
.record-group__empty { margin: 0; font-size: .9rem; }
.record-group__text { font-size: .9rem; margin-bottom: var(--space-2); }
.record-group .table-wrap + .table-wrap { margin-top: var(--space-3); }
.table-wrap { overflow-x: auto; }
table { width: 100%; min-width: 480px; border-collapse: collapse; font-size: .9rem; table-layout: fixed; }
th { position: sticky; top: 0; text-align: left; font-weight: 600; color: var(--color-text-muted); background: var(--color-surface); }
th, td { padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--color-border); vertical-align: top; }
tbody tr:nth-child(even) { background: color-mix(in srgb, var(--color-border) 30%, transparent); }
/* same three columns in every record table: Name | TTL | Value */
th.name, td.name { width: 28%; word-break: break-all; }
th.num, td.num { width: 6.5em; text-align: right; }
td.num { font-family: var(--font-mono); white-space: nowrap; }
.mono { font-family: var(--font-mono); word-break: break-all; }

/* ---------- admin: log tables, key/value, json ---------- */
.form-row--filter { margin-bottom: var(--space-4); }
.table--auto { table-layout: auto; min-width: 720px; }
.table--auto th.num, .table--auto td.num { width: auto; }
td.nowrap { white-space: nowrap; }
.pager { display: flex; align-items: center; gap: var(--space-3); justify-content: center; margin-top: var(--space-4); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-2) var(--space-4); margin: 0; font-size: .9rem; }
.kv dt { color: var(--color-text-muted); }
.kv dd { margin: 0; word-break: break-all; }
.json {
  margin: 0; padding: var(--space-3);
  font-family: var(--font-mono); font-size: .8rem; line-height: 1.45;
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  overflow-x: auto; max-height: 70vh;
}
.settings-form { display: grid; gap: var(--space-4); max-width: 560px; }
.settings-form .field input { max-width: 200px; }
.field__help { font-size: .85rem; }

/* ---- monitors ---- */
.monitor-banner .btn, .monitor-banner form { margin-top: var(--space-2); }
.monitor-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); font-size: .9rem; }
.monitor-actions .text-muted { flex: 1 1 100%; }
@media (min-width: 640px) { .monitor-actions .text-muted { flex: 1 1 auto; } }
.prewrap { white-space: pre-wrap; word-break: break-all; }

/* ---- confirm overlay (<dialog>) ---- */
.confirm {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  width: min(420px, calc(100vw - 2 * var(--space-4)));
}
.confirm::backdrop { background: rgba(16, 24, 40, .55); }
.confirm__title { font-size: 1.1rem; margin: 0 0 var(--space-2); }
.confirm__text { margin: 0 0 var(--space-5); color: var(--color-text-muted); overflow-wrap: anywhere; }
.confirm__actions { display: flex; justify-content: flex-end; gap: var(--space-2); }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-5); }
.page-head .page-title { margin-bottom: 0; }
.row-actions { display: flex; gap: var(--space-2); }
.row-actions form { margin: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.row-actions input[type="date"] { padding: var(--space-1) var(--space-2); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font: inherit; }