:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --text: #20242a;
  --muted: #667085;
  --border: #d9dee7;
  --accent: #2f3742;
  --accent-text: #ffffff;
  --danger: #b42318;
  --danger-border: #e5b8b4;
  --success-border: #9fc7aa;
  --input-bg: #ffffff;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, sans-serif; }
a { color: #315b88; }
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
button, input, select { font: inherit; }
button { background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent); border-radius: 6px; padding: .6rem .85rem; font-weight: 650; cursor: pointer; }
button.secondary { background: var(--panel); color: var(--text); border: 1px solid var(--border); }
button.danger { background: #fff; color: var(--danger); border: 1px solid var(--danger-border); }
button:disabled { opacity: .45; cursor: not-allowed; }
input, select { width: 100%; background: var(--input-bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: .65rem .7rem; margin-top: .35rem; }
input[type="checkbox"] { width: auto; margin: 0; }
label { color: var(--muted); font-size: .92rem; }
.checkbox-setting { display: flex; flex-direction: column; gap: .55rem; }
.checkbox-row { display: flex; align-items: center; gap: .55rem; min-height: 42px; color: var(--text); }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: .2rem; font-size: 1.5rem; }
h2 { margin-bottom: .2rem; font-size: 1.08rem; }
.muted, .panel-heading p, .topbar p { color: var(--muted); }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--border); background: #fff; }
.topbar p { margin-bottom: 0; }
.manager { max-width: 1500px; margin: 0 auto; padding: 1.5rem; display: grid; gap: 1rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; }
.stat, .panel { border: 1px solid var(--border); background: var(--panel); border-radius: 8px; box-shadow: 0 1px 2px rgba(16,24,40,.04); }
.stat { padding: 1rem; display: flex; flex-direction: column; gap: .2rem; }
.stat strong { font-size: 1.45rem; }
.stat span { color: var(--muted); }
.panel { padding: 1rem; }
.panel-heading { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1rem; }
.panel-heading p { margin-bottom: 0; }
.settings-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; align-items: end; }
.form-actions { grid-column: 1 / -1; }
.inline-form { margin-top: .75rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .7rem .6rem; border-top: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .85rem; background: #fbfcfd; }
tbody tr:hover { background: #fafbfc; }
.url-cell { max-width: 600px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status { display: inline-block; padding: .15rem .4rem; border: 1px solid var(--border); border-radius: 999px; font-size: .8rem; background: #fff; }
.status.delivered, .status.ok, .status.ready, .status.posted { border-color: var(--success-border); }
.status.failed, .status.unauthorized, .status.bad, .status.error { border-color: var(--danger-border); color: var(--danger); }
.error-text { color: var(--danger); margin-top: .35rem; max-width: 480px; }
.empty { color: var(--muted); padding: 1.25rem; text-align: center; }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(420px, 100%); background: var(--panel); border: 1px solid var(--border); border-radius: 9px; padding: 1.4rem; box-shadow: 0 8px 24px rgba(16,24,40,.08); }
.stack { display: grid; gap: 1rem; }
.notice { border: 1px solid var(--border); background: var(--panel-2); padding: .75rem; border-radius: 6px; margin: 1rem 0; }
.notice.error { border-color: var(--danger-border); color: var(--danger); background: #fff8f7; }
textarea { width: 100%; resize: vertical; background: var(--input-bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: .65rem .7rem; margin-top: .35rem; font: inherit; }
.button-link { display: inline-block; text-decoration: none; background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent); border-radius: 6px; padding: .6rem .85rem; font-weight: 650; }
.button-link.secondary { background: var(--panel); color: var(--text); border: 1px solid var(--border); }
.actions { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.actions form { margin: 0; }

/* Compact table controls: icon-only actions with native hover tooltips. */
.compact-actions { flex-wrap: nowrap; gap: .25rem; }
.icon-button {
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 5px;
  text-decoration: none;
}
.button-link.icon-button { padding: 0; }
.icon-button:hover { filter: brightness(.97); }
.icon-button:focus-visible { outline: 2px solid #315b88; outline-offset: 2px; }
.deleted-mark { display: inline-flex; width: 2rem; height: 2rem; align-items: center; justify-content: center; }

.caption-cell { max-width: 420px; white-space: pre-wrap; }
.channel-grid { display: grid; grid-template-columns: 180px 1fr; gap: 1.25rem; }
.channel-form { display: grid; gap: .9rem; max-width: 800px; }
.channel-avatar, .avatar-placeholder { width: 160px; height: 160px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border); margin-bottom: .75rem; }
.avatar-placeholder { display: grid; place-items: center; color: var(--muted); background: var(--panel-2); }
.permission-row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.schedule-note { color: var(--muted); align-self: end; }
.narrow { max-width: 1000px; }
.custom-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; align-items: end; }
.custom-caption { grid-column: 1 / -1; }
.custom-actions { display: flex; gap: .6rem; align-items: center; }
.custom-note { margin: .9rem 0 0; }
time { white-space: nowrap; }
.timeline-grid { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: .7rem; margin-top: .9rem; }
.timeline-grid > div { border: 1px solid var(--border); background: var(--panel-2); border-radius: 6px; padding: .75rem; display: grid; gap: .25rem; }
.timeline-grid span { color: var(--muted); font-size: .82rem; }
.timeline-grid strong { font-size: .92rem; font-weight: 600; }
@media (max-width: 900px) {
  .stats-grid, .settings-grid { grid-template-columns: 1fr 1fr; }
  .timeline-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .channel-grid { grid-template-columns: 1fr; }
  .custom-grid { grid-template-columns: 1fr; }
  .custom-caption { grid-column: auto; }
}
@media (max-width: 600px) {
  .topbar { align-items: flex-start; }
  .stats-grid, .settings-grid, .timeline-grid { grid-template-columns: 1fr; }
  .manager { padding: .8rem; }
}
.field-help { display: block; margin-top: .3rem; color: var(--muted); font-size: .78rem; line-height: 1.3; }