/* Mailroom admin UI. Hand-written, no framework, no external fonts.
   Colours are tokens on :root. A light work surface (emails are designed on
   white, so the UI is too), a dark navigation rail, one accent colour. */

:root {
  color-scheme: light;
  --bg: #f3f4f8;
  --surface: #ffffff;
  --surface-2: #f6f7fb;
  --surface-3: #eef0f6;
  --border: #e3e6ee;
  --border-strong: #cdd2de;
  --text: #161b2e;
  --text-muted: #5f6880;
  --accent: #3d5afe;
  --accent-hover: #2f48d6;
  --accent-soft: #eceffe;
  --accent-contrast: #ffffff;
  --success: #12805c;
  --success-soft: #e3f5ee;
  --warning: #8f5a00;
  --warning-soft: #fff4dc;
  --danger: #c9302c;
  --danger-hover: #a72622;
  --danger-soft: #fdecea;
  --info: #2f55d4;
  --info-soft: #e9eefe;
  --muted-soft: #eef0f5;
  --focus: #3d5afe;
  --ring: 0 0 0 3px rgba(61, 90, 254, 0.18);
  --shadow: 0 1px 2px rgba(22, 27, 46, 0.04), 0 2px 6px rgba(22, 27, 46, 0.05);
  --shadow-pop: 0 10px 30px rgba(22, 27, 46, 0.16), 0 2px 6px rgba(22, 27, 46, 0.08);

  --nav-bg: #141a33;
  --nav-text: #b8bfd6;
  --nav-text-strong: #ffffff;
  --nav-hover: rgba(255, 255, 255, 0.07);
  --nav-active: rgba(61, 90, 254, 0.28);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --sidebar: 232px;
  --topbar: 60px;
}

*, *::before, *::after { box-sizing: border-box; }

/* The hidden attribute always wins (.btn and others set a display). */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 var(--space-3); font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: 1.625rem; overflow-wrap: anywhere; letter-spacing: -0.02em; }
h2 { font-size: 1.0625rem; }
h3 { font-size: 0.9375rem; }
p { margin: 0 0 var(--space-3); }
code, pre, kbd { font-family: var(--mono); font-size: 0.875em; }
pre { background: var(--surface-2); padding: var(--space-3); border-radius: var(--radius-sm); overflow-x: auto; }
hr { border: 0; border-top: 1px solid var(--border); margin: var(--space-5) 0; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.icon { flex: none; display: inline-block; vertical-align: middle; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link { position: absolute; left: var(--space-2); top: -60px; z-index: 10; background: var(--surface); padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); }
.skip-link:focus { top: var(--space-2); }

.muted { color: var(--text-muted); }
.small { font-size: 0.875rem; }
.mono { font-family: var(--mono); }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.stack > * + * { margin-top: var(--space-4); }
.row { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.ok-text { color: var(--success); font-weight: 500; margin: var(--space-2) 0 0; font-size: 0.875rem; }

/* ---------------------------------------------------------------- layout */

.app {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  grid-template-rows: var(--topbar) 1fr auto;
  grid-template-areas: "brand top" "nav main" "nav foot";
  min-height: 100vh;
}

.topbar {
  grid-column: 2; grid-row: 1;
  display: flex; align-items: center; gap: var(--space-4);
  padding: 0 var(--space-6);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.topbar .brand { display: none; }
.brand { font-weight: 750; color: var(--text); letter-spacing: -0.01em; display: inline-flex; align-items: center; gap: 10px; }
.brand::before {
  content: ""; width: 26px; height: 26px; border-radius: 8px; flex: none;
  background: linear-gradient(135deg, #5b7bff 0%, #3d5afe 45%, #7a3dfe 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}
.brand:hover { text-decoration: none; }
.company { color: var(--text); font-weight: 600; font-size: 0.9375rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.usermenu { margin-left: auto; display: flex; align-items: center; gap: var(--space-3); font-size: 0.875rem; }
.usermenu .who { color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 28ch; }
.usermenu form { margin: 0; }

.sidenav {
  grid-column: 1; grid-row: 1 / span 3;
  background: var(--nav-bg); color: var(--nav-text);
  padding: 0 var(--space-3) var(--space-4);
}
.sidenav > .brand { display: flex; height: var(--topbar); padding: 0 var(--space-3); margin: 0 0 var(--space-3); color: #fff; font-size: 1.0625rem; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.sidenav ul { list-style: none; margin: 0; padding: 0; position: sticky; top: var(--space-4); display: grid; gap: 2px; }
.sidenav a {
  display: flex; align-items: center; gap: 12px;
  padding: 9px var(--space-3); border-radius: var(--radius-sm);
  color: var(--nav-text); font-size: 0.9375rem; font-weight: 500;
}
.sidenav a .icon { opacity: 0.8; order: -1; }
.sidenav a:hover { background: var(--nav-hover); color: var(--nav-text-strong); text-decoration: none; }
.sidenav a[aria-current="page"] { background: var(--nav-active); color: var(--nav-text-strong); }
.sidenav a[aria-current="page"] .icon { opacity: 1; color: #aebcff; }
.sidenav .count { margin-left: auto; background: var(--accent); color: #fff; border-radius: 999px; font-size: 0.75rem; font-weight: 700; padding: 0 7px; line-height: 1.6; }

/* min-width: 0 lets .main shrink below its content's width, so wide tables
   and <pre> scroll inside their .table-wrap instead of widening the page. */
.main { grid-area: main; padding: var(--space-6) var(--space-6) var(--space-7); max-width: 1320px; width: 100%; min-width: 0; }
.footer { grid-area: foot; padding: var(--space-4) var(--space-6); color: var(--text-muted); font-size: 0.8125rem; }

@media (max-width: 860px) {
  .app { grid-template-columns: minmax(0, 1fr); grid-template-rows: var(--topbar) auto 1fr auto; grid-template-areas: "top" "nav" "main" "foot"; }
  .topbar { grid-column: 1; grid-row: 1; padding: 0 var(--space-4); gap: var(--space-3); }
  .topbar .brand { display: inline-flex; }
  .company { display: none; }
  .usermenu .who { display: none; }
  .sidenav { grid-column: 1; grid-row: 2; padding: var(--space-2); overflow-x: auto; }
  .sidenav > .brand { display: none; }
  .sidenav ul { display: flex; gap: var(--space-1); position: static; }
  .sidenav a { white-space: nowrap; padding: 6px 10px; }
  .main { padding: var(--space-4) var(--space-4) var(--space-6); }
  .grid { gap: var(--space-3); }
  .stat { padding: var(--space-3); }
  .stat .value { font-size: 1.375rem; }
  .card { padding: var(--space-4); }
  .footer { padding: var(--space-4); }
}

/* ---------------------------------------------------------------- page header */

.page-header { display: flex; align-items: flex-end; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-5); }
.page-header h1 { margin: 0; }
.page-header .subtitle { color: var(--text-muted); margin: var(--space-1) 0 0; max-width: 72ch; }
.page-header .actions { margin-left: auto; display: flex; gap: var(--space-2); flex-wrap: wrap; }
.breadcrumb { font-size: 0.8125rem; margin-bottom: var(--space-2); color: var(--text-muted); overflow-wrap: anywhere; font-weight: 500; }
.page-header > div:first-child { min-width: 0; }

/* In-page section tabs: <nav class="subnav" aria-label="..."> with
   .btn.btn-sm links; the current one has aria-current="page". */
.subnav { display: flex; gap: var(--space-5); flex-wrap: wrap; align-items: center; margin-bottom: var(--space-5); border-bottom: 1px solid var(--border); }
.subnav .btn { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: transparent; color: var(--text-muted); padding: 0 0 10px; min-height: 0; font-size: 0.9375rem; }
.subnav .btn:hover { background: transparent; color: var(--text); }
.subnav .btn[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.subnav + hr { display: none; }

/* ---------------------------------------------------------------- cards */

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-5); box-shadow: var(--shadow); }
.card + .card { margin-top: var(--space-5); }
.grid > .card + .card { margin-top: 0; }
.card > h2:first-child { margin-bottom: var(--space-4); }
.card-header { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.card-header h2 { margin: 0; }
.card-header .actions { margin-left: auto; display: flex; gap: var(--space-2); }

.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-2 + .card, .card + .grid-2, .grid-2 + .grid-2, section + .grid-2 { margin-top: var(--space-5); }
.stats { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-bottom: var(--space-5); }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4) var(--space-5); box-shadow: var(--shadow); }
.stat .label { color: var(--text-muted); font-size: 0.8125rem; margin: 0; font-weight: 500; }
.stat .value { font-size: 1.875rem; font-weight: 700; margin: var(--space-1) 0; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat .sub { color: var(--text-muted); font-size: 0.8125rem; margin: 0; }
.stat.is-warn .value { color: var(--warning); }
.stat.is-danger .value { color: var(--danger); }

dl.props { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-2) var(--space-5); margin: 0; }
dl.props dt { color: var(--text-muted); }
dl.props dd { margin: 0; overflow-wrap: anywhere; }

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 38px; padding: 0 var(--space-4);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text);
  font: inherit; font-size: 0.9375rem; font-weight: 550; line-height: 1;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  box-shadow: 0 1px 1px rgba(22, 27, 46, 0.04);
  transition: background 120ms, border-color 120ms, box-shadow 120ms;
}
.btn:hover { background: var(--surface-2); border-color: #b9bfcd; text-decoration: none; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); box-shadow: 0 1px 2px rgba(61, 90, 254, 0.3); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--accent); box-shadow: none; }
.btn-ghost:hover { background: var(--accent-soft); border-color: transparent; }
.btn-sm { min-height: 32px; padding: 0 var(--space-3); font-size: 0.875rem; }
.btn-icon { min-width: 32px; padding: 0; font-size: 1.125rem; }
.btn-link { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; }
.btn-link:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- forms */

form.form { max-width: 760px; }
.field { margin-bottom: var(--space-4); }
.field > label, .field > .label, .label-row > label, .label-row > .label { display: block; font-weight: 600; font-size: 0.875rem; margin-bottom: 6px; }
.label-row { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; min-height: 32px; margin-bottom: 4px; }
.label-row > label, .label-row > .label { margin: 0; }
.label-row > :last-child:not(:first-child) { margin-left: auto; }
.field .optional { color: var(--text-muted); font-weight: 400; font-size: 0.8125rem; }
.field .hint { color: var(--text-muted); font-size: 0.8125rem; margin: 6px 0 0; }
.field .error-text, .error-text { color: var(--danger); font-size: 0.875rem; margin: var(--space-1) 0 0; font-weight: 500; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="search"],
input[type="url"], input[type="datetime-local"], input[type="date"], input[type="time"], input:not([type]),
select, textarea {
  width: 100%; min-height: 40px; padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text); font: inherit;
  transition: border-color 120ms, box-shadow 120ms;
}
input::placeholder, textarea::placeholder { color: #9aa1b4; }
textarea { min-height: 120px; resize: vertical; line-height: 1.45; }
textarea.code { font-family: var(--mono); font-size: 0.8125rem; min-height: 380px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: var(--ring); outline: none; }
[aria-invalid="true"] { border-color: var(--danger) !important; }
input[type="checkbox"], input[type="radio"] { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }
.check { display: flex; gap: var(--space-2); align-items: center; font-weight: 400; }
.choices { display: flex; gap: var(--space-4); flex-wrap: wrap; border: 0; padding: 0; margin: 0; }
.choices legend { font-weight: 600; font-size: 0.875rem; margin-bottom: var(--space-1); padding: 0; }
form.inline { display: inline-flex; margin: 0; }
.form-actions { display: flex; gap: var(--space-2); align-items: center; margin-top: var(--space-5); flex-wrap: wrap; }
.form-error { border: 1px solid #f3c1be; background: var(--danger-soft); color: var(--danger); padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); margin-bottom: var(--space-4); }
.filters { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: flex-end; margin-bottom: var(--space-4); }
.filters .field { margin: 0; min-width: 160px; }
.filters .grow { flex: 1; min-width: 200px; }

/* Segmented control (editor modes, preview device). */
.segmented { display: inline-flex; background: var(--surface-3); border-radius: 9px; padding: 3px; gap: 2px; }
.segmented button { border: 0; background: transparent; font: inherit; font-size: 0.8125rem; font-weight: 600; color: var(--text-muted); padding: 5px 12px; border-radius: 7px; cursor: pointer; }
.segmented button:hover { color: var(--text); }
.segmented button[aria-pressed="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgba(22, 27, 46, 0.12); }
.segmented-sm button { padding: 3px 10px; font-size: 0.75rem; }

/* ---------------------------------------------------------------- tables */

.table-wrap { position: relative; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
table.table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.table th, .table td { text-align: left; padding: 14px var(--space-4); border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); background: var(--surface-2); white-space: nowrap; text-transform: uppercase; letter-spacing: 0.04em; padding-top: 10px; padding-bottom: 10px; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #fafbfe; }
.table td a { font-weight: 550; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table .actions { text-align: right; white-space: nowrap; }

.pager { display: flex; gap: var(--space-2); align-items: center; justify-content: flex-end; margin-top: var(--space-3); font-size: 0.875rem; }
.pager .muted { margin-right: auto; }

/* ---------------------------------------------------------------- empty state */

.empty { text-align: center; padding: var(--space-7) var(--space-5); background: var(--surface); border: 1px dashed var(--border-strong); border-radius: var(--radius); }
.empty h2 { margin-bottom: var(--space-2); }
.empty p { color: var(--text-muted); max-width: 52ch; margin: 0 auto var(--space-4); }

/* ---------------------------------------------------------------- segment builder */

.seg-group { border: 0; padding: 0; margin: 0; min-width: 0; }
.seg-group.card { margin: var(--space-3) 0; padding: var(--space-4); }
.seg-group > legend { padding: 0 var(--space-1); font-size: 0.875rem; color: var(--text-muted); }
.seg-group select.auto { width: auto; }
.seg-cond { padding: var(--space-3) 0; border-top: 1px solid var(--border); margin: 0; }
.seg-cond .field { min-width: 120px; }
.seg-cond .error-text { flex-basis: 100%; }
.sample-list { list-style: none; margin: 0 0 var(--space-3); padding: 0; font-size: 0.875rem; }
.sample-list li { padding: var(--space-1) 0; border-bottom: 1px solid var(--border); overflow-wrap: anywhere; }
.sample-list li:last-child { border-bottom: 0; }

/* ---------------------------------------------------------------- media, QR */

.media-thumb { display: block; width: 72px; height: 48px; object-fit: contain; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.copy-field { display: flex; gap: var(--space-2); align-items: center; }
.copy-field input { flex: 1; min-width: 0; }
.table .copy-field input { min-width: 22ch; }
.qr { display: block; width: 200px; max-width: 100%; height: auto; background: #fff; padding: var(--space-2); border: 1px solid var(--border); border-radius: var(--radius-sm); }

/* ---------------------------------------------------------------- badges */

.badge {
  display: inline-block; padding: 2px var(--space-2); border-radius: 999px;
  font-size: 0.75rem; font-weight: 600; line-height: 1.4; white-space: nowrap;
  background: var(--muted-soft); color: var(--text-muted); border: 1px solid transparent;
}
.badge-ok { background: var(--success-soft); color: var(--success); }
.badge-info { background: var(--info-soft); color: var(--info); }
.badge-warn { background: var(--warning-soft); color: var(--warning); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-muted { background: var(--muted-soft); color: var(--text-muted); }
.tag { display: inline-block; padding: 1px var(--space-2); border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border); font-size: 0.8125rem; margin: 0 var(--space-1) var(--space-1) 0; }

/* ---------------------------------------------------------------- flash */

.flashes { margin-bottom: var(--space-4); }
.flashes:empty { display: none; }
.flash { display: flex; gap: var(--space-3); align-items: flex-start; padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); border: 1px solid; margin-bottom: var(--space-2); }
.flash p { margin: 0; flex: 1; }
.flash-success { background: var(--success-soft); color: var(--success); border-color: currentColor; }
.flash-error { background: var(--danger-soft); color: var(--danger); border-color: currentColor; }
.flash-warning { background: var(--warning-soft); color: var(--warning); border-color: currentColor; }
.flash-info { background: var(--info-soft); color: var(--info); border-color: currentColor; }
.flash .dismiss { background: none; border: 0; color: inherit; cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 0 var(--space-1); }

/* ---------------------------------------------------------------- confirm */

.confirm { max-width: 640px; border-color: var(--border-strong); }
.confirm.is-danger { border-top: 4px solid var(--danger); }
.confirm ul { margin: 0 0 var(--space-4); padding-left: var(--space-5); }

/* ---------------------------------------------------------------- checks (doctor) */

.checks { list-style: none; margin: 0; padding: 0; }
.checks li { display: grid; grid-template-columns: 72px 1fr; gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--border); }
.checks li:last-child { border-bottom: 0; }
.checks li > * { min-width: 0; overflow-wrap: anywhere; }
.checks .name { font-weight: 500; }
.checks .fix { color: var(--text-muted); font-size: 0.875rem; margin: var(--space-1) 0 0; }

meter.quota { display: block; width: 100%; height: 10px; margin: var(--space-2) 0; }

/* ---------------------------------------------------------------- email editor */

.editor { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, 1fr); gap: var(--space-5); align-items: start; }
@media (max-width: 1100px) { .editor { grid-template-columns: 1fr; } }
.editor-main { min-width: 0; }
.body-field { margin-bottom: 0; }

/* Toolbar + surface form one box. */
.rte-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 2px;
  padding: 6px; background: var(--surface-2);
  border: 1px solid var(--border-strong); border-bottom: 0;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  position: sticky; top: calc(var(--topbar) + 4px); z-index: 3;
}
.rte-toolbar button, .rte-toolbar .tb-color {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  min-width: 32px; height: 32px; padding: 0 6px; border: 0; border-radius: 6px;
  background: transparent; color: var(--text); font: inherit; font-size: 0.9375rem; cursor: pointer;
}
.rte-toolbar button:hover, .rte-toolbar .tb-color:hover { background: var(--surface-3); }
.rte-toolbar .tb-text { font-size: 0.8125rem; font-weight: 600; padding: 0 10px; }
.rte-toolbar .tb-merge { color: var(--accent); background: var(--accent-soft); }
.rte-toolbar .tb-merge:hover { background: #dde3fe; }
.rte-toolbar .tb-select { width: auto; min-height: 32px; height: 32px; padding: 0 28px 0 10px; font-size: 0.8125rem; font-weight: 600; border-color: transparent; background-color: transparent; }
.rte-toolbar .tb-select:hover { background-color: var(--surface-3); }
.rte-toolbar .tb-sep { width: 1px; height: 20px; background: var(--border-strong); margin: 0 4px; }
.tb-color { position: relative; font-weight: 700; }
.tb-color span { border-bottom: 3px solid #d0342c; line-height: 1; padding: 0 2px 1px; }
.tb-color input { position: absolute; inset: 0; opacity: 0; width: 100%; height: 100%; cursor: pointer; min-height: 0; padding: 0; border: 0; }

.editor.is-enhanced #f-body, .rte-surface {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.rte-surface {
  min-height: 420px; max-height: 70vh; overflow-y: auto;
  padding: 28px 32px; background: #fff;
  border: 1px solid var(--border-strong);
  font: 16px/1.6 Arial, Helvetica, sans-serif; color: #1f2937;
}
.rte-surface:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.rte-surface:empty::before { content: "Start writing your email…  Use the toolbar to add headings, images, buttons and personalisation."; color: #9aa1b4; }
.rte-surface p { margin: 0 0 16px; }
.rte-surface h1 { font-size: 26px; margin: 0 0 16px; }
.rte-surface h2 { font-size: 21px; margin: 24px 0 12px; }
.rte-surface h3 { font-size: 18px; margin: 20px 0 10px; }
.rte-surface blockquote { margin: 0 0 16px; padding-left: 16px; border-left: 4px solid #e5e7eb; color: #4b5563; }
.rte-surface img { max-width: 100%; height: auto; }
.rte-surface hr { border: 0; border-top: 1px solid #e5e7eb; margin: 24px 0; }
.rte-surface a { color: var(--accent); text-decoration: underline; cursor: pointer; }
.rte-surface .mr-tag { display: inline-block; background: var(--accent-soft); color: var(--accent); border: 1px solid #d3dafd; border-radius: 5px; padding: 0 6px; margin: 0 1px; font: 600 0.8125em/1.6 var(--font); white-space: nowrap; vertical-align: baseline; cursor: default; user-select: all; }
.rte-surface a.mr-button { display: inline-block; background: var(--accent); color: #fff; padding: 12px 24px; border-radius: 6px; text-decoration: none; font-weight: bold; }

/* Popovers (merge fields, images, links). */
.popover {
  position: absolute; z-index: 30; width: 340px; max-width: calc(100vw - 32px);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-pop); padding: var(--space-4);
}
.popover-wide { width: 460px; }
.popover-head { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); }
.popover-head .dismiss { margin-left: auto; background: none; border: 0; font-size: 1.25rem; line-height: 1; cursor: pointer; color: var(--text-muted); }
.popover label { display: block; font-weight: 600; margin-bottom: 4px; }
.merge-list { max-height: 320px; overflow-y: auto; margin-top: var(--space-3); }
.merge-items { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.merge-items button {
  width: 100%; display: grid; grid-template-columns: 1fr auto; gap: 0 var(--space-2); text-align: left;
  border: 0; background: transparent; padding: 8px 10px; border-radius: var(--radius-sm); cursor: pointer; font: inherit; color: var(--text);
}
.merge-items button:hover, .merge-items button:focus-visible { background: var(--accent-soft); }
.merge-items .merge-label { font-weight: 600; font-size: 0.875rem; }
.merge-items code { font-size: 0.75rem; color: var(--accent); align-self: center; }
.merge-items .muted { grid-column: 1 / -1; }
.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: var(--space-2); max-height: 300px; overflow-y: auto; }
.media-pick { border: 1px solid var(--border); background: var(--surface-2); border-radius: var(--radius-sm); padding: 4px; cursor: pointer; aspect-ratio: 1; display: grid; place-items: center; }
.media-pick:hover { border-color: var(--accent); box-shadow: var(--ring); }
.media-pick img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* Preview panel. */
.preview-panel {
  position: sticky; top: calc(var(--topbar) + var(--space-4));
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4);
}
.preview-head { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.preview-head h2 { margin: 0; font-size: 1rem; }
.preview-as { margin-bottom: var(--space-3); }
.preview-as label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px; }
.preview-as-row { display: flex; gap: var(--space-2); align-items: center; }
.preview-as-row select { flex: 1; min-width: 0; min-height: 34px; padding-top: 4px; padding-bottom: 4px; }
.inbox-row { display: flex; gap: var(--space-3); align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm) var(--radius-sm) 0 0; padding: 10px 12px; border-bottom: 0; }
.inbox-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; flex: none; }
.inbox-lines { min-width: 0; display: grid; }
.inbox-subject { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.preview-device { background: #fff; border: 1px solid var(--border); border-radius: 0 0 var(--radius-sm) var(--radius-sm); overflow: hidden; display: flex; justify-content: center; transition: background 150ms; }
.preview-frame { display: block; width: 100%; height: 620px; border: 0; background: #fff; transition: width 200ms; }
.preview-panel.is-mobile .preview-device { background: var(--surface-3); padding: 12px 0; }
.preview-panel.is-mobile .preview-frame { width: 375px; max-width: 100%; border-radius: 18px; box-shadow: 0 0 0 8px #1f2433; height: 640px; }
.preview-panel details { margin-top: var(--space-3); }
.preview-panel > details > summary { cursor: pointer; }
.preview-error { color: var(--danger); background: var(--danger-soft); padding: var(--space-3); border-radius: var(--radius-sm); }
.test-box { margin-top: var(--space-3); border-top: 1px solid var(--border); padding-top: var(--space-3); }
.test-box > summary { list-style: none; cursor: pointer; }
.test-box > summary::-webkit-details-marker { display: none; }
.test-box > summary .btn { pointer-events: none; }
.test-box[open] > summary .btn { background: var(--surface-3); }
.test-box-body { margin-top: var(--space-3); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3); }
.test-box-body label { font-weight: 600; font-size: 0.875rem; display: block; margin-bottom: 4px; }
.test-box-body .hint { color: var(--text-muted); font-size: 0.8125rem; margin: 6px 0 var(--space-3); }
.htmx-indicator { opacity: 0; transition: opacity 150ms; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }

/* ---------------------------------------------------------------- login / bare pages */

.bare { min-height: 100vh; display: grid; place-items: center; padding: var(--space-4); background: radial-gradient(1200px 600px at 10% -10%, #e4e9ff 0%, transparent 60%), radial-gradient(900px 500px at 110% 110%, #efe6ff 0%, transparent 55%), var(--bg); }
.auth-card { width: 100%; max-width: 400px; }
.auth-card .brand { display: flex; justify-content: center; font-size: 1.25rem; margin-bottom: var(--space-4); text-align: center; }
.auth-card .btn { width: 100%; }

/* ---------------------------------------------------------------- utilities
   Last in the file, so they win over the component rules above. */

.gap-1 { gap: var(--space-1); }
.align-start { align-items: start; }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-5 { margin-top: var(--space-5); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.plain-list { list-style: none; padding: 0; margin-left: 0; margin-right: 0; margin-top: 0; }
.plain-fieldset { border: 0; padding: 0; margin: 0 0 var(--space-4); min-width: 0; }
.plain-fieldset > legend { font-weight: 500; padding: 0; margin-bottom: var(--space-1); }
select.auto { width: auto; }

/* ---------------------------------------------------------------- broadcast: checklist, send card, menus */

.send-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr); gap: var(--space-4); align-items: start; }
@media (max-width: 900px) { .send-grid { grid-template-columns: minmax(0, 1fr); } }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: var(--space-3); align-items: start; padding: 14px 0; border-top: 1px solid var(--border); }
.checklist li:first-child { border-top: 0; padding-top: 0; }
.checklist li p { margin: 2px 0 0; color: var(--text-muted); overflow-wrap: anywhere; }
.checklist li p strong { color: var(--text); }
.checklist .ck { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; font-weight: 800; margin-top: 1px; }
.checklist .is-ok .ck { background: var(--success-soft); color: var(--success); }
.checklist .is-ok .ck::before { content: "✓"; }
.checklist .is-todo .ck { background: var(--surface-3); color: var(--text-muted); border: 2px dashed var(--border-strong); }
.checklist .is-warn .ck { background: var(--warning-soft); color: var(--warning); }
.checklist .is-warn .ck::before { content: "!"; }
.big-when { font-size: 1.375rem; font-weight: 700; margin: 0 0 var(--space-1); letter-spacing: -0.01em; }
.btn-block { width: 100%; }
.or { display: flex; align-items: center; gap: var(--space-3); color: var(--text-muted); font-size: 0.8125rem; margin: var(--space-3) 0; }
.or::before, .or::after { content: ""; flex: 1; border-top: 1px solid var(--border); }

details.menu { position: relative; }
details.menu > summary { list-style: none; }
details.menu > summary::-webkit-details-marker { display: none; }
.menu-items { position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; min-width: 200px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow-pop); padding: 6px; display: grid; gap: 2px; }
.menu-items form { display: block; }
.btn.menu-item { width: 100%; justify-content: flex-start; border: 0; box-shadow: none; background: transparent; min-height: 34px; font-weight: 500; }
.btn.menu-item:hover { background: var(--surface-2); }
.btn.menu-item.is-danger { color: var(--danger); }

/* A stored email's preview (broadcast page): the panel fills its card. */
.saved-preview .preview-panel { position: static; background: transparent; border: 0; padding: 0; }
.saved-preview .preview-frame { height: 720px; }

/* The editor never widens the page on a phone. */
.editor > *, .editor-main > *, .preview-panel > * { min-width: 0; }
@media (max-width: 600px) {
  .rte-surface { padding: 16px; }
  .preview-panel { position: static; }
  .card .editor { margin: 0 calc(-1 * var(--space-2)); }
}
.warn-list li { padding: 4px 0; }
.table-wrap.flat { box-shadow: none; }
.image-pick { position: relative; margin-top: calc(-1 * var(--space-2)); }
.image-pick .popover { top: 40px; left: 0; }
.logo-thumb { height: 36px; max-width: 160px; object-fit: contain; border: 1px solid var(--border); border-radius: 6px; background: #fff; padding: 2px; }
.color-field { position: relative; }
.color-field input[type=color] { position: absolute; right: 6px; top: 31px; width: 34px; height: 30px; padding: 0; border: 1px solid var(--border); border-radius: 6px; background: none; cursor: pointer; }
.color-field input[type=text], .color-field input:not([type]) { padding-right: 48px; }
details.advanced { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3) var(--space-4); background: var(--surface-2); margin-top: var(--space-4); }
details.advanced > summary { cursor: pointer; font-weight: 600; font-size: 0.875rem; }
details.advanced[open] > summary { margin-bottom: var(--space-3); }
.send-grid > .card + .card { margin-top: 0; }
.starter-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-3); }
.starter { display: grid; gap: 2px; padding: var(--space-3) var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); color: var(--text); min-width: 0; }
.starter strong, .starter span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
a.starter:hover { border-color: var(--accent); box-shadow: var(--ring); text-decoration: none; }
.starter.is-current { border-color: var(--accent); background: var(--accent-soft); }
.advanced-card > summary { cursor: pointer; display: flex; gap: var(--space-3); align-items: baseline; flex-wrap: wrap; }
.advanced-card[open] > summary { margin-bottom: var(--space-4); padding-bottom: var(--space-3); border-bottom: 1px solid var(--border); }
details.card + .card, .card + details.card { margin-top: var(--space-5); }
.tl-type { display: inline-block; font-size: 0.8125rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--surface-3); color: var(--text-muted); white-space: nowrap; }
.tl-received, .tl-click { background: var(--accent-soft); color: var(--accent); }
.tl-bounce, .tl-complaint, .tl-send_error, .tl-reject { background: var(--danger-soft); color: var(--danger); }
.tl-unsubscribe { background: var(--warning-soft); color: var(--warning); }
.tl-delivery, .tl-consent { background: var(--success-soft); color: var(--success); }
details > summary.btn { list-style: none; }
details > summary.btn::-webkit-details-marker { display: none; }

/* ---------------------------------------------------------------- sequence flow */

.flow { list-style: none; margin: 0; padding: 0; display: grid; justify-items: center; }
.flow > li { width: min(100%, 720px); }
.flow-trigger, .flow-email { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: var(--space-3); align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-3) var(--space-4); box-shadow: var(--shadow); }
.flow-trigger { border-color: #c9d2fe; background: var(--accent-soft); }
.flow-trigger p, .flow-email p { margin: 2px 0 0; color: var(--text-muted); font-size: 0.875rem; }
.flow-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-weight: 700; background: var(--surface-3); color: var(--text); }
.flow-trigger .flow-icon { background: #fff; }
.flow-title { font-weight: 650; color: var(--text); }
.flow-stats { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.flow-stats strong { color: var(--text); }
.flow-stats .is-bad strong { color: var(--danger); }
.flow-actions { display: flex; gap: 2px; align-items: center; }
.flow-wait, .flow-add, .flow-end { display: flex; justify-content: center; position: relative; padding: 14px 0; }
.flow-wait::before, .flow-add::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; border-left: 2px dashed var(--border-strong); }
.flow-pill { position: relative; display: inline-flex; align-items: center; gap: 6px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: 999px; padding: 4px 12px; font-size: 0.8125rem; font-weight: 600; color: var(--text-muted); }
.flow-add .btn { position: relative; }
.flow-end { padding-top: 0; }
.flow-end .flow-pill { background: var(--success-soft); border-color: transparent; color: var(--success); }
@media (max-width: 600px) { .flow-trigger, .flow-email { grid-template-columns: 32px minmax(0, 1fr); } .flow-actions { grid-column: 1 / -1; } }
.confirm li.confirm-warn { list-style: none; margin-left: calc(-1 * var(--space-5)); background: var(--warning-soft); color: var(--warning); border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3); margin-top: var(--space-2); font-weight: 500; }
.confirm li.confirm-warn::before { content: "⚠ "; }
.onoff { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 0.875rem; padding: 0 12px; min-height: 38px; border-radius: var(--radius-sm); }
.onoff::before { content: ""; width: 9px; height: 9px; border-radius: 50%; }
.onoff.is-on { color: var(--success); background: var(--success-soft); } .onoff.is-on::before { background: var(--success); }
.onoff.is-off { color: var(--text-muted); background: var(--surface-3); } .onoff.is-off::before { background: var(--border-strong); }
.mr-chip { display: inline-block; background: var(--accent-soft); color: var(--accent); border-radius: 4px; padding: 0 5px; font-size: 0.85em; font-weight: 600; line-height: 1.5; white-space: nowrap; }
.mail-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 0.9375rem; line-height: 1.6; }
.card.is-alert { border-color: #f3c1be; }
.inbox-line { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inbox-pre { color: var(--text-muted); font-weight: 400; }
.sticky-actions { position: sticky; bottom: 0; z-index: 2; background: rgba(243, 244, 248, 0.94); backdrop-filter: blur(6px); border-top: 1px solid var(--border); padding: var(--space-3) 0; margin-bottom: calc(-1 * var(--space-5)); }
.onoff-sm { min-height: 24px; padding: 0 9px; font-size: 0.8125rem; }
.check-pill { display: inline-block; font-weight: 600; font-size: 0.875rem; padding: 2px 10px; border-radius: 999px; }
.check-pill.is-good { background: var(--success-soft); color: var(--success); }
.check-pill.is-bad { background: var(--danger-soft); color: var(--danger); }
.flow-actions .btn-ghost { font-size: 1.125rem; min-width: 34px; }
.flash + .subnav, .flash + nav { margin-top: var(--space-4); }
.table tr.is-unread td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
.table tr.is-unread { background: #fbfcff; }
.table tr:not(.is-unread) td a { font-weight: 450; }
iframe[title="Email content"] { height: 420px; resize: vertical; overflow: auto; }
.reply-bubble { background: var(--accent-soft); border-radius: 12px; padding: var(--space-3) var(--space-4); margin-bottom: var(--space-3); }