:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #1a56db;
  --accent-ink: #ffffff;
  --danger: #b91c1c;
  --ok-bg: #ecfdf5;
  --ok-ink: #065f46;
  --warn-bg: #fffbeb;
  --warn-ink: #92400e;
  --err-bg: #fef2f2;
  --err-ink: #991b1b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

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

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.topbar .brand { font-weight: 700; color: var(--ink); }
.topbar nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; flex: 1; }
.topbar nav a { color: var(--ink); }
.topbar .spacer { flex: 1; }
.topbar .who { color: var(--muted); font-size: 14px; }

.nav-menu { position: relative; display: flex; align-items: center; gap: 2px; }
.nav-menu-toggle {
  padding: 2px 4px;
  border: none;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
}
.nav-menu-toggle:hover { color: var(--ink); }
.nav-menu::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 8px;
}
.nav-menu-list {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 10;
  min-width: 170px;
  padding: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
}
.nav-menu:hover .nav-menu-list,
.nav-menu:focus-within .nav-menu-list,
.nav-menu.open .nav-menu-list { display: block; }
.nav-menu-list a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--ink);
  white-space: nowrap;
}
.nav-menu-list a:hover { background: #f3f4f6; text-decoration: none; }

.nav-toggle { display: none; }
.nav-burger { display: none; }

@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; }
  .topbar .brand { margin-right: auto; }

  .nav-toggle {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
  }
  .nav-burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 34px;
    height: 34px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
  }
  .nav-burger span { display: block; height: 2px; background: var(--ink); }
  .nav-toggle:focus-visible + .nav-burger { outline: 2px solid var(--accent); outline-offset: 1px; }

  .topbar nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: 100%;
    padding-top: 8px;
  }
  .nav-toggle:checked ~ nav { display: flex; }

  .topbar nav > a,
  .nav-menu > a {
    padding: 8px 6px;
    border-radius: 6px;
  }
  .topbar nav > a:hover,
  .nav-menu > a:hover { background: #f3f4f6; text-decoration: none; }

  .nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-menu::after { display: none; }
  .nav-menu-toggle { display: none; }
  .nav-menu-list {
    display: block;
    position: static;
    min-width: 0;
    padding: 0 0 4px 14px;
    background: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
  }
  .nav-menu-list a { padding: 6px; }

  .topbar .spacer { display: none; }
  .topbar .who { display: block; padding: 8px 6px; }
  .topbar nav form { margin: 0; }
  .topbar nav form .btn { width: 100%; }
}

main { max-width: 1080px; margin: 0 auto; padding: 24px 16px 64px; }

h1 { font-size: 24px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 18px 0 8px; }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.page-head h1 { margin: 0; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 18px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

label { display: block; margin-bottom: 12px; font-size: 14px; font-weight: 600; }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
label .hint { display: block; font-weight: 400; }

input[type="text"], input[type="email"], input[type="password"],
input[type="date"], input[type="datetime-local"], input[type="file"],
input[type="number"], input[type="url"], select, textarea {
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus, .editor:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 700px) { .two-col { grid-template-columns: 1fr; } }

.inline-form { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 8px 0; }
.inline-form label { display: flex; align-items: center; gap: 8px; margin: 0; }
.inline-form select, .inline-form input[type="file"],
.inline-form input[type="date"], .inline-form input[type="datetime-local"] { width: auto; margin: 0; }

.hint { color: var(--muted); font-size: 13px; margin: 4px 0; }
.empty { color: var(--muted); padding: 12px 0; }

.btn, input[type="submit"] {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover, input[type="submit"]:hover { background: #f3f4f6; text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #1648b8; }
.btn-danger { color: var(--danger); border-color: #fecaca; }
.btn-danger:hover { background: var(--err-bg); }
.btn-pale-red { background: var(--err-bg); border-color: #fecaca; color: var(--danger); }
.btn-pale-red:hover { background: #fde4e4; }
.btn-sm { padding: 3px 8px; font-size: 13px; }

.form-actions { display: flex; gap: 10px; margin-top: 8px; }

.form-errors {
  background: var(--err-bg);
  color: var(--err-ink);
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 14px;
}
.form-errors ul { margin: 6px 0 0; padding-left: 18px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.flash-notice { background: var(--ok-bg); color: var(--ok-ink); }
.flash-alert { background: var(--err-bg); color: var(--err-ink); }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.table .row-actions { text-align: right; white-space: nowrap; }
.table .detail { max-width: 340px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.detail[title] { cursor: help; }

/* DataTables (email directory). The vendor stylesheet loads before this file,
   so these rules keep its controls consistent with the rest of the app. */
div.dt-container select.dt-input,
div.dt-container input.dt-input { width: auto; margin: 0; }
div.dt-container .dt-search input {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
div.dt-container .dt-layout-row { margin: 8px 0; gap: 12px; }
div.dt-container .dt-paging .dt-paging-button { border-radius: 6px; }
div.dt-container .dt-paging .dt-paging-button.current {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink) !important;
}
div.dt-container .dt-paging .dt-paging-button:hover { background: #f3f4f6; }
table.dataTable.table > thead > tr > th,
table.dataTable.table > tbody > tr > td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
table.dataTable.table > thead > tr > th { color: var(--muted); font-size: 13px; }
table.dataTable.table > tbody > tr:last-child > td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #eef2ff;
  color: #3730a3;
}
.badge-draft, .badge-member { background: #f3f4f6; color: #374151; }
.badge-queued, .badge-pending, .badge-sending, .badge-manager { background: #eff6ff; color: #1d4ed8; }
.badge-sent, .badge-active { background: var(--ok-bg); color: var(--ok-ink); }
.badge-failed, .badge-bounced, .badge-deactivated { background: var(--err-bg); color: var(--err-ink); }
.badge-skipped, .badge-canceled { background: var(--warn-bg); color: var(--warn-ink); }
.badge-admin { background: #faf5ff; color: #6b21a8; }

.group-tree, .group-tree ul { list-style: none; margin: 0; padding-left: 20px; }
.group-tree > li { padding-left: 0; }
.group-tree li { margin: 2px 0; }
.group-tree .tree-link { font-weight: 500; }

.tree-row { display: flex; align-items: center; gap: 8px; cursor: pointer; font-weight: 400 !important; }
.tree-row input { width: auto; margin: 0; accent-color: var(--accent); }
.tree-count { color: var(--muted); font-size: 12px; }

.login-card { max-width: 380px; margin: 8vh auto 0; }

.editor-toolbar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
  padding: 6px;
  background: #f9fafb;
  border: 1px solid var(--line);
  border-radius: 8px 8px 0 0;
}
.editor-toolbar button {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}
.editor-toolbar button:hover { background: #eef2ff; }

.editor {
  min-height: 180px;
  padding: 12px;
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 8px 8px;
  background: #fff;
  font-weight: 400;
}
.editor:empty::before { content: "Write your message…"; color: var(--muted); }

.js-hidden-when-enhanced { display: none; }

.progress-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  margin-bottom: 8px;
}
.progress-bar > div { height: 100%; background: var(--accent); }

.count-list { list-style: none; margin: 10px 0 0; padding: 0; }
.count-list li { margin: 4px 0; display: flex; gap: 10px; align-items: center; }

.membership-list { list-style: none; margin: 0; padding: 0; }
.membership-list li { margin: 2px 0; display: flex; gap: 8px; align-items: center; }

.recipient-counts { margin: 10px 0; padding: 10px 14px; background: #f9fafb; border-radius: 8px; }

.preview-card { padding: 12px; }
.preview-frame {
  width: 100%;
  height: 70vh;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.email-text {
  margin: 10px 0 0;
  padding: 12px;
  background: #f6f7f9;
  border: 1px solid var(--line);
  border-radius: 8px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.attachment-list { list-style: none; margin: 0 0 10px; padding: 0; }
.attachment-list li { display: flex; align-items: center; gap: 10px; padding: 4px 0; }

.plain { background: #f6f7f9; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.plain-card { max-width: 440px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 28px; text-align: center; }
.plain-hint { color: var(--muted); font-size: 13px; }