/* ------------------------------------------------------------------ login */
.login-screen {
  height: 100%;
  overflow: auto;
  display: grid;
  place-items: center;
  padding: var(--sp-4);
  background:
    linear-gradient(var(--bg), var(--bg)) padding-box;
}
.login-card {
  width: min(400px, 100%);
  padding: var(--sp-6);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--surface);
  box-shadow: var(--shadow-2);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.login-brand { display: flex; align-items: center; gap: var(--sp-3); }
.login-brand .brand-mark { width: 36px; height: 36px; }
.login-brand div { display: flex; flex-direction: column; line-height: 1.2; }
.login-brand small { color: var(--muted); }
.login-title { font-size: var(--fs-lg); }
.login-note {
  display: flex;
  gap: var(--sp-2);
  align-items: flex-start;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r);
  background: var(--warning-soft);
  color: var(--warning-text);
  font-size: var(--fs-sm);
}
.login-note svg { margin-top: 2px; }
.login-form { display: flex; flex-direction: column; gap: var(--sp-3); }
.login-form .input { height: 40px; }

/* -------------------------------------------------------------- dashboard */
.kpi-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--sp-3); }
.kpi {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  min-height: 104px;
}
.kpi::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--k-accent, var(--border-strong)); }
.kpi-success { --k-accent: var(--success-text); }
.kpi-danger { --k-accent: var(--danger-text); }
.kpi-warning { --k-accent: var(--warning-text); }
.kpi-info { --k-accent: var(--info-text); }
.kpi-label { color: var(--muted); font-size: var(--fs-sm); font-weight: 600; }
.kpi-value { font-size: var(--fs-kpi); font-weight: 700; line-height: 1.15; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.kpi-danger .kpi-value { color: var(--danger-text); }
.kpi-warning .kpi-value { color: var(--warning-text); }
.kpi-foot { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-2); color: var(--muted); font-size: var(--fs-xs); margin-top: auto; }

.dash-grid {
  flex: 1 1 auto !important;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(400px, 1fr);
  gap: var(--sp-3);
}
.legend { display: flex; gap: var(--sp-4); font-size: var(--fs-sm); color: var(--text-2); }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; flex: none; }
.swatch-sent { background: var(--chart-sent); }
.swatch-failed { background: var(--chart-failed); }

.chart-wrap { position: relative; flex: 1 1 auto; min-height: 240px; padding: var(--sp-3) var(--sp-4) var(--sp-2) var(--sp-2); display: flex; }
.chart-canvas { flex: 1; min-width: 0; min-height: 0; position: relative; }
.chart { position: absolute; inset: 0; overflow: visible; }
.chart .grid-line { stroke: var(--chart-grid); stroke-width: 1; }
.chart .axis-line { stroke: var(--border-strong); stroke-width: 1; }
.chart .axis-text { fill: var(--chart-axis); font-size: 11px; font-family: var(--font); font-variant-numeric: tabular-nums; }
.chart .axis-text.is-today { fill: var(--text); font-weight: 700; }
.chart .axis-sub { font-size: 10.5px; }
.chart .bar-sent { fill: var(--chart-sent); }
.chart .bar-failed { fill: var(--chart-failed); }
.chart .bar-value { fill: var(--text-2); font-size: 11px; font-weight: 600; font-family: var(--font); }
.chart .bar-value-failed { fill: var(--danger-text); }
.chart .bar-hit { fill: transparent; }
.chart .bar-group { cursor: default; outline: none; }
.chart .bar-group.is-active .bar-hit { fill: var(--chart-hover); }
.chart .bar-group:focus-visible .bar-hit { fill: var(--chart-hover); stroke: var(--focus); stroke-width: 2; }
.chart-tip {
  position: absolute;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  box-shadow: var(--shadow-2);
  font-size: var(--fs-xs);
  pointer-events: none;
  white-space: nowrap;
}
.chart-tip span { display: inline-flex; align-items: center; gap: 6px; }
.panel-chart .empty { min-height: 200px; }

/* --------------------------------------------------------------- projects */
.page-projects .split { flex: 1 1 auto; }
.project-list { display: flex; flex-direction: column; padding: var(--sp-1); gap: 2px; }
.project-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r);
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
}
.project-item:hover { background: var(--hover); text-decoration: none; }
.project-item.is-current { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 35%, transparent); }
.project-item.is-off .pi-name { color: var(--text-2); }
.pi-top { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); }
.pi-name { font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pi-addr { color: var(--muted); font-size: var(--fs-xs); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pi-stats { display: flex; gap: var(--sp-3); font-size: var(--fs-xs); color: var(--text-2); }
.list-empty { padding: var(--sp-4); color: var(--muted); text-align: center; }

.panel-card { min-height: 0; }
.card-loading { display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-5); height: 100%; }
.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5) var(--sp-3);
  flex: none;
}
.card-id { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.card-title { font-size: var(--fs-lg); font-weight: 700; }
.card-from { color: var(--text-2); font-size: var(--fs-sm); overflow-wrap: anywhere; }
.card-meta { color: var(--muted); font-size: var(--fs-xs); }
.card-head-actions { flex: none; display: flex; align-items: center; gap: var(--sp-2); }
.panel-card > .banner { margin: 0 var(--sp-5) var(--sp-3); flex: none; }
.card-panels { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; }

.tab-inner { padding: var(--sp-4) var(--sp-5) var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-4); }
.tab-toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); flex-wrap: wrap; }
.tab-toolbar > p { max-width: 720px; font-size: var(--fs-sm); }
.tab-toolbar code, .connect-main code, .secret-step code { padding: 1px 4px; border-radius: var(--r-sm); background: var(--surface-3); }

.settings-form { max-width: 980px; }
.danger-zone {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  max-width: 980px;
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  border: 1px solid var(--danger-border);
  border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--danger-soft) 55%, var(--surface));
}
.danger-title { font-size: var(--fs-md); font-weight: 650; color: var(--danger-text); }
.danger-text { color: var(--text-2); font-size: var(--fs-sm); max-width: 640px; margin-top: 2px; }

.keys-body .table-scroll { border: 1px solid var(--border); border-radius: var(--r); }
.keys-body .table th { position: static; }

.secret-step { display: flex; flex-direction: column; gap: var(--sp-3); }
.secret-row { display: flex; gap: var(--sp-2); }
.secret-input { font-size: var(--fs-sm); letter-spacing: .02em; }
.secret-hint { padding: var(--sp-2) var(--sp-3); border: 1px solid var(--border); border-radius: var(--r); background: var(--surface-2); }
.secret-hint.is-flash { animation: flash .9s var(--ease); }
@keyframes flash { 0%, 100% { box-shadow: none; } 30% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--warning-text) 45%, transparent); } }

.connect-grid { display: grid !important; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: var(--sp-5); align-items: start; }
.connect-main, .connect-ref { display: flex; flex-direction: column; gap: var(--sp-3); min-width: 0; }
.connect-ref .table { border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; }
.connect-ref .table td:first-child { white-space: nowrap; }
.kv-inline { padding: var(--sp-3); border: 1px solid var(--border); border-radius: var(--r); background: var(--surface-2); }

.test-form { max-width: 720px; }
.test-result:empty { display: none; }
.test-result .banner { align-items: center; flex-wrap: wrap; }

/* --------------------------------------------------------------- messages */
.filters {
  display: grid;
  grid-template-columns: minmax(170px, 1.1fr) minmax(150px, .9fr) minmax(240px, 2.2fr) minmax(140px, .8fr) minmax(140px, .8fr) auto;
  gap: var(--sp-2) var(--sp-3);
  align-items: end;
  padding: var(--sp-2) var(--sp-3) var(--sp-3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
}
.filter { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.filter-label { font-size: var(--fs-xs); font-weight: 600; color: var(--muted); }

.msg-layout {
  flex: 1 1 auto !important;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 0;
  gap: 0;
  transition: grid-template-columns var(--dur-slow) var(--ease);
}
.msg-layout.has-detail { grid-template-columns: minmax(0, 1fr) var(--detail-w); gap: var(--sp-3); }
.detail-panel { display: none; }
.msg-layout.has-detail .detail-panel { display: flex; animation: slide-in var(--dur-slow) var(--ease); }
@keyframes slide-in { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: none; } }

.panel-table.is-loading tbody { opacity: .6; transition: opacity var(--dur) var(--ease); }
.table-messages { table-layout: fixed; }
.table-messages .col-time { width: 160px; }
.table-messages .col-project { width: 14%; }
.table-messages .col-to { width: 18%; }
.table-messages .col-status { width: 128px; }
.table-messages .col-att { width: 76px; }
.table-messages .col-error { width: 20%; }
.table-messages td { vertical-align: middle; }
.table-messages td > .clip { max-width: calc(100% - 30px); }
.table-messages .col-project .clip, .table-messages .col-error .clip { max-width: 100%; }
.msg-layout.has-detail .table-messages .col-error, .msg-layout.has-detail .table-messages .col-project { display: none; }
.row-click { cursor: pointer; }
.row-click.is-selected td { background: var(--primary-soft) !important; }
.row-click.is-selected td:first-child { box-shadow: inset 3px 0 0 var(--primary); }
.row-open {
  display: block;
  max-width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: var(--text);
  font-weight: 600;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.row-click:hover .row-open { color: var(--primary-text); text-decoration: underline; }
.error-text { color: var(--danger-text); font-family: var(--mono); font-size: var(--fs-xs); }
.updated-at { font-size: var(--fs-xs); font-variant-numeric: tabular-nums; }

.detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-3) var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border);
  flex: none;
}
.detail-head-text { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.detail-title { font-size: var(--fs-md); font-weight: 650; overflow-wrap: anywhere; }
.detail-sub { display: flex; align-items: center; gap: var(--sp-2); font-size: var(--fs-sm); }
.detail-body { flex: 1 1 auto; min-height: 0; overflow: auto; padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-4); }
.detail-section { display: flex; flex-direction: column; gap: var(--sp-2); }
.detail-actions { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.id-row { display: inline-flex; align-items: center; gap: var(--sp-1); flex-wrap: wrap; }
.id-row code { overflow-wrap: anywhere; }

.body-tools { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); flex-wrap: wrap; }
.body-holder { display: flex; flex-direction: column; gap: var(--sp-2); }
.body-holder > p { display: flex; gap: 6px; align-items: flex-start; }
.body-holder > p svg { margin-top: 2px; }
.mail-text {
  margin: 0;
  padding: var(--sp-3);
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface-2);
  font-family: var(--font);
  font-size: var(--fs-sm);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.mail-text.mono { font-family: var(--mono); font-size: var(--fs-xs); }
.mail-frame {
  width: 100%;
  height: 380px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: #fff;
  color-scheme: light;
}

.attempts { list-style: none; display: flex; flex-direction: column; gap: var(--sp-2); }
.attempt {
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--b-fg);
  border-radius: var(--r);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.attempt-head { display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap; }
.attempt-head time { margin-left: auto; }
.attempt-n { font-weight: 700; color: var(--muted); font-size: var(--fs-xs); }
.attempt-resp { font-size: var(--fs-xs); color: var(--text-2); overflow-wrap: anywhere; }

/* ------------------------------------------------------------------ audit */
.page-audit .panel-table { flex: 1 1 auto; }
.page-messages .panel-table { min-height: 0; }
.col-details { max-width: 520px; }
.details-text { display: block; font-family: var(--mono); font-size: var(--fs-xs); color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 520px; }
.page-audit .table td { vertical-align: middle; }
.page-audit .col-time { width: 170px; }

/* ------------------------------------------------------------- responsive */
@media (max-width: 1499px) {
  .connect-grid { grid-template-columns: minmax(0, 1fr); }
  .table-messages .col-error { display: none; }
  .dash-grid { grid-template-columns: minmax(0, 1.2fr) minmax(430px, 1fr); }
}

@media (max-width: 1279px) {
  .filters { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .f-q { grid-column: span 2; }
}

@media (max-width: 1099px) {
  .kpi-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dash-grid { grid-template-columns: 1fr; }
  .chart-wrap { min-height: 300px; }
  .panel-card { min-height: 70vh; }
  .panel-table { min-height: 60vh; }
  .msg-layout, .msg-layout.has-detail { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .detail-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(560px, 100vw);
    z-index: var(--z-panel);
    border-radius: 0;
    box-shadow: var(--shadow-pop);
  }
  .msg-layout.has-detail .table-messages .col-project { display: table-cell; }
  .table-messages { min-width: 860px; }
  .danger-zone { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 760px) {
  .form-grid { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr 1fr; }
  .f-q { grid-column: 1 / -1; }
  .card-head { flex-direction: column; }
  .kpi-value { font-size: 24px; }
}

/* fixes */
.code code { padding: 0; background: none; border-radius: 0; font-size: inherit; }
.connect-ref td code { white-space: nowrap; overflow-wrap: normal; }
.page-title:focus { outline: none; }
.settings-layout { display: grid; grid-template-columns: minmax(0, 980px) minmax(280px, 360px); gap: var(--sp-6); align-items: start; justify-content: space-between; }
.settings-layout .danger-zone { margin-top: 0; flex-direction: column; align-items: flex-start; gap: var(--sp-3); }
@media (max-width: 1599px) {
  .settings-layout { grid-template-columns: minmax(0, 1fr); }
  .settings-layout .danger-zone { margin-top: var(--sp-4); flex-direction: row; align-items: center; justify-content: space-between; }
}
@media (max-width: 1099px) {
  .settings-layout .danger-zone { flex-direction: column; align-items: flex-start; }
}
.msg-layout.has-detail .table-messages .col-att { display: none; }
@media (min-width: 1100px) and (max-width: 1599px) {
  .msg-layout.has-detail .table-messages .col-to { display: none; }
  .msg-layout.has-detail .table-messages .col-time { width: 150px; }
}
.page-audit td a { white-space: nowrap; }
@media (max-width: 1099px) {
  .msg-layout.has-detail .table-messages .col-att { display: table-cell; }
}

/* ------------------------------------------------------------------ users */
.page-users .split { flex: 1 1 auto; }
.pi-badges { display: inline-flex; align-items: center; gap: 4px; flex: none; }
.user-item .pi-addr .mono { color: var(--text-2); }
.self-tag { color: var(--success-text); font-weight: 600; }
.user-card-body { flex: 1 1 auto; min-height: 0; overflow: auto; padding: var(--sp-4) var(--sp-5) var(--sp-5); border-top: 1px solid var(--border); }
.user-main { display: flex; flex-direction: column; gap: var(--sp-4); min-width: 0; max-width: 980px; }
.user-main .settings-form { display: flex; flex-direction: column; gap: var(--sp-3); }
.user-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface-2);
}
.user-block-title { font-size: var(--fs-md); font-weight: 650; }
.user-block-text { color: var(--text-2); font-size: var(--fs-sm); max-width: 640px; margin-top: 2px; }
.user-block > .btn { flex: none; }
.self-note {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-4);
  border: 1px solid var(--info-border);
  border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--info-soft) 55%, var(--surface));
  font-size: var(--fs-sm);
}
.self-note-title { display: flex; align-items: center; gap: var(--sp-2); color: var(--info-text); font-size: var(--fs-md); font-weight: 650; }
.self-inline { display: inline-flex; align-items: center; gap: var(--sp-2); color: var(--text-2); font-size: var(--fs-sm); min-height: 36px; }
.pw-row { display: flex; gap: var(--sp-2); }
.pw-row .input-group { flex: 1 1 auto; min-width: 0; }
.pw-row > .btn { flex: none; }
.panel-noaccess { flex: 1 1 auto; justify-content: center; }
@media (max-width: 760px) {
  .user-block { flex-direction: column; align-items: flex-start; }
  .pw-row { flex-direction: column; }
}

/* ============================================================ stage 3 */

/* Tabs that manage their own scrolling (Оформление, Шаблоны) */
.tab-panel-fill:not([hidden]) { display: flex; flex-direction: column; overflow: hidden; }
.tab-panel-fill > * { flex: 1 1 auto; min-height: 0; }

/* ---------------------------------------------------------- preview pane */
.pv-pane { display: flex; flex-direction: column; gap: var(--sp-2); min-height: 0; min-width: 0; }
.pv-toolbar { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.pv-status { font-size: var(--fs-xs); }
.pv-subject { font-size: var(--fs-sm); overflow-wrap: anywhere; }
.pv-subject:empty { display: none; }
.pv-error { align-items: center; }
.pv-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: var(--sp-3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background:
    repeating-linear-gradient(45deg, transparent 0 10px, color-mix(in srgb, var(--border) 35%, transparent) 10px 11px),
    var(--surface-3);
}
.pv-stage { position: relative; margin: 0 auto; height: 100%; min-height: 520px; transition: width var(--dur-slow) var(--ease); max-width: 100%; }
.pv-w600 { width: 640px; }
.pv-w360 { width: 360px; }
.pv-stage .mail-frame { display: block; width: 100%; height: 100%; min-height: 520px; border-radius: var(--r); box-shadow: var(--shadow-2); }
.pv-stage.is-loading .mail-frame { opacity: .55; transition: opacity var(--dur) var(--ease); }
.pv-loading { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.pv-spinner {
  width: 28px; height: 28px; border-radius: 50%;
  border: 3px solid color-mix(in srgb, var(--primary) 25%, transparent); border-top-color: var(--primary);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pv-note { display: flex; gap: 6px; align-items: flex-start; }
.pv-note svg { margin-top: 2px; }
.pv-text { max-height: none; flex: 1 1 auto; min-height: 300px; }

/* --------------------------------------------------------------- branding */
.brand-layout {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(420px, 560px) minmax(0, 1fr);
  min-height: 0;
}
.brand-left { min-height: 0; overflow: auto; padding: var(--sp-4) var(--sp-5) 0; display: flex; flex-direction: column; gap: var(--sp-4); border-right: 1px solid var(--border); }
.brand-right { min-height: 0; display: flex; flex-direction: column; padding: var(--sp-4) var(--sp-5); background: var(--surface-2); }
.brand-right .pv-pane { flex: 1 1 auto; }
.brand-tab.tab-inner { padding: 0; gap: 0; }
.brand-enabled {
  display: flex; flex-direction: column; gap: 4px;
  padding: var(--sp-3); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface-2);
}
.brand-actions { position: sticky; bottom: 0; padding: var(--sp-3) 0; background: var(--surface); border-top: 1px solid var(--border); z-index: 1; }
.color-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); }
.color-row { display: flex; gap: 6px; align-items: center; }
.color-row .input { min-width: 0; }
.color-picker {
  flex: none; width: 40px; height: var(--ctl-h); padding: 2px; border: 1px solid var(--border-strong); border-radius: var(--r);
  background: var(--surface); cursor: pointer;
}
.color-picker::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker::-webkit-color-swatch { border: 0; border-radius: var(--r-sm); }
.color-picker::-moz-color-swatch { border: 0; border-radius: var(--r-sm); }

.logo-block { display: flex; flex-direction: column; gap: 4px; }
.logo-drop {
  display: flex; align-items: center; gap: var(--sp-4);
  padding: var(--sp-3); border: 1.5px dashed var(--border-strong); border-radius: var(--r-lg); background: var(--surface);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.logo-drop.is-over { border-color: var(--primary); background: var(--primary-soft); }
.logo-drop.is-busy { opacity: .7; }
.logo-thumb {
  flex: none; display: grid; place-items: center; width: 140px; height: 72px; padding: 6px;
  border: 1px solid var(--border); border-radius: var(--r); background: var(--surface-3); overflow: hidden;
}
.logo-thumb.is-empty { color: var(--muted); }
.logo-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }
.logo-drop-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1 1 auto; }
.logo-actions { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; margin-top: 4px; }
.logo-actions .btn-danger-ghost { margin-left: auto; }

/* -------------------------------------------------------------- templates */
.tpl-tab { min-height: 0; display: flex; flex-direction: column; }
.tpl-tab > .tpl-layout, .brand-tab > .brand-layout { flex: 1 1 auto; }
.tpl-layout {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(230px, 290px) minmax(0, 1fr) minmax(0, 1fr);
  min-height: 0;
}
.tpl-col { display: flex; flex-direction: column; min-height: 0; min-width: 0; border-right: 1px solid var(--border); }
.tpl-col:last-child { border-right: 0; }
.tpl-col .panel-head { min-height: 42px; }
.tpl-col-list, .tpl-col-preview { background: var(--surface-2); }
.tpl-list { display: flex; flex-direction: column; gap: 2px; padding: var(--sp-1); }
.tpl-item {
  display: flex; flex-direction: column; gap: 2px; width: 100%; padding: var(--sp-2) var(--sp-3);
  border: 1px solid transparent; border-radius: var(--r); background: none; text-align: left; color: var(--text);
}
.tpl-item:hover { background: var(--hover); }
.tpl-item.is-current { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 35%, transparent); }
.tpl-item .pi-stats { flex-wrap: wrap; align-items: center; }
.tpl-editor-body { padding: var(--sp-4); }
.tpl-form .tpl-body { min-height: 180px; resize: vertical; }
.tpl-html-box { border: 1px solid var(--border); border-radius: var(--r); background: var(--surface-2); }
.tpl-html-box > summary { cursor: pointer; padding: var(--sp-2) var(--sp-3); font-size: var(--fs-sm); font-weight: 600; color: var(--text-2); }
.tpl-html-box[open] > summary { border-bottom: 1px solid var(--border); }
.tpl-html-box > .field { padding: var(--sp-3); }
.tpl-danger { margin-top: var(--sp-4) !important; flex-direction: column; align-items: flex-start !important; gap: var(--sp-3) !important; }
.tpl-preview-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-3); }
.tpl-preview-body .pv-pane { flex: none; }
.tpl-preview-body .pv-stage, .tpl-preview-body .pv-stage .mail-frame { min-height: 560px; }
.tpl-vars { display: flex; flex-direction: column; gap: 6px; }
.var-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.var-chip {
  padding: 2px 8px; border: 1px solid var(--info-border); border-radius: 999px; background: var(--info-soft); color: var(--info-text);
  font-size: var(--fs-xs);
}
.tpl-data-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); }
.tpl-data { min-height: 120px; resize: vertical; font-size: var(--fs-xs) !important; }
.tpl-data-msg.is-ok { color: var(--success-text); }
.tpl-data-msg.is-bad { color: var(--danger-text); font-weight: 600; }

/* ------------------------------------------------- stage 4: header styles */
.hs-field { margin: 0; padding: 0; border: 0; min-width: 0; }
.hs-field > legend { padding: 0; margin-bottom: 4px; }
.hs-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-2); }
.hs-card {
  position: relative; display: flex; flex-direction: column; gap: 6px; padding: var(--sp-2);
  border: 1.5px solid var(--border); border-radius: var(--r-lg); background: var(--surface); cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.hs-card:hover { border-color: var(--border-strong); }
.hs-card:has(.hs-radio:checked) { border-color: var(--primary); background: var(--primary-soft); }
.hs-card:has(.hs-radio:focus-visible) { box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 35%, transparent); }
.hs-radio { position: absolute; top: 8px; right: 8px; width: 16px; height: 16px; margin: 0; accent-color: var(--primary); }
.hs-thumb {
  display: flex; flex-direction: column; height: 68px; border: 1px solid #d9dde3; border-radius: var(--r-sm); overflow: hidden;
  background: #ffffff; color-scheme: light;
}
.hs-head { display: flex; align-items: center; height: 20px; padding: 0 8px; background: var(--hs-c, var(--primary)); flex: none; }
.hs-logo { width: 26px; height: 6px; border-radius: 2px; background: #ffffff; }
.hs-light .hs-head, .hs-centered .hs-head { background: #ffffff; border-bottom: 3px solid var(--hs-c, var(--primary)); }
.hs-light .hs-logo, .hs-centered .hs-logo { background: #9ca3af; }
.hs-centered .hs-head { justify-content: center; }
.hs-lines { display: flex; flex-direction: column; gap: 4px; padding: 7px 8px; }
.hs-lines > span { height: 4px; width: 80%; border-radius: 2px; background: #e5e7eb; }
.hs-lines > span:nth-child(2) { width: 58%; }
.hs-lines > .hs-btn { width: 30px; height: 8px; margin-top: 2px; background: var(--hs-b, var(--primary)); }
.hs-text { display: flex; flex-direction: column; line-height: 1.25; }
.hs-text strong { font-size: var(--fs-sm); }

.button-opts { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--sp-3) var(--sp-4); align-items: start; }
.field.is-inherited .color-hex::placeholder { color: var(--muted); font-style: italic; }
.color-row .btn-sm { flex: none; }
.fallback-check { min-height: var(--ctl-h); }

/* ---------------------------------------------------------- markup toolbar */
.mk-wrap { position: relative; }
.mk-toolbar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 2px; padding: 3px;
  border: 1px solid var(--border-strong); border-bottom: 0; border-radius: var(--r) var(--r) 0 0; background: var(--surface-2);
}
.mk-wrap + textarea, .mk-wrap + .input { border-top-left-radius: 0; border-top-right-radius: 0; }
.mk-btn { height: 26px; padding: 0 7px; font-size: var(--fs-xs); font-weight: 600; color: var(--text-2); }
.mk-bold { font-weight: 800; }
.mk-heading { font-weight: 700; }
.mk-sep { width: 1px; height: 18px; margin: 0 3px; background: var(--border); }
.mk-caret { margin-left: 2px; font-size: 10px; }
.mk-help-btn { height: 26px; font-size: var(--fs-xs); color: var(--primary-text); }
.mk-menu-wrap { position: relative; display: inline-flex; }
.mk-menu {
  position: absolute; top: calc(100% + 4px); left: 0; z-index: 30; min-width: 220px; padding: 4px;
  border: 1px solid var(--border); border-radius: var(--r); background: var(--surface); box-shadow: var(--shadow-2);
  display: flex; flex-direction: column;
}
.mk-menu[hidden] { display: none; }
.mk-menu-item {
  display: flex; align-items: center; gap: var(--sp-2); padding: 6px 8px; border: 0; border-radius: var(--r-sm);
  background: none; color: var(--text); font-size: var(--fs-sm); text-align: left;
}
.mk-menu-item:hover, .mk-menu-item:focus-visible { background: var(--hover); }
.mk-menu-item .muted { margin-left: auto; }
.mk-swatch { width: 12px; height: 12px; border-radius: 3px; border-left: 3px solid; flex: none; }
.mk-swatch-note { background: #dbeafe; border-color: #3b82f6; }
.mk-swatch-warning { background: #fef3c7; border-color: #f59e0b; }
.mk-swatch-success { background: #d1fae5; border-color: #10b981; }

.mk-pop {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0; z-index: 25; max-height: min(70vh, 640px); overflow: auto;
  border: 1px solid var(--border-strong); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-pop);
}
.mk-pop-head {
  position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-4); border-bottom: 1px solid var(--border); background: var(--surface);
}
.mk-pop-title { font-size: var(--fs-md); font-weight: 650; }
.mk-pop .mk-help-body { padding: var(--sp-3) var(--sp-4) var(--sp-4); }
.mk-help-body { display: flex; flex-direction: column; gap: var(--sp-3); }
.mk-help-table { border: 1px solid var(--border); border-radius: var(--r); }
.mk-help-table td { vertical-align: middle; }
.mk-syntax {
  margin: 0; padding: 2px 6px; border-radius: var(--r-sm); background: var(--surface-3); font-family: var(--mono); font-size: var(--fs-xs);
  white-space: pre; width: max-content; max-width: 260px; overflow: auto;
}
.mk-help-notes { list-style: disc; padding-left: var(--sp-5); display: flex; flex-direction: column; gap: 4px; font-size: var(--fs-sm); color: var(--text-2); }
.mk-help-example { display: flex; flex-direction: column; gap: 6px; }
.mk-help-example-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); }
.mk-example { white-space: pre-wrap; }

/* --------------------------------------------------------------- sensitive */
.sensitive-box {
  display: flex; flex-direction: column; gap: 4px; padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--warning-border); border-radius: var(--r-lg); background: color-mix(in srgb, var(--warning-soft) 60%, var(--surface));
}
.sensitive-box .check > svg { color: var(--warning-text); flex: none; }
.badge-lock { gap: 4px; }
.badge-lock::before { display: none; }
.subj-cell { display: flex; align-items: center; gap: 6px; min-width: 0; }
.subj-cell .row-open { min-width: 0; flex: 0 1 auto; }
.subj-cell .badge { flex: none; }
.hidden-body {
  display: flex; gap: var(--sp-3); align-items: flex-start; padding: var(--sp-4);
  border: 1px dashed var(--border-strong); border-radius: var(--r-lg); background: var(--surface-2);
}
.hidden-body-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--surface-3); color: var(--muted); flex: none; }
.hidden-body-title { font-weight: 650; color: var(--text); margin-bottom: 2px; }
.detail-noretry { display: flex; align-items: flex-start; gap: 6px; }
.detail-noretry > svg { margin-top: 2px; flex: none; }

/* -------------------------------------------------------- template test */
.tpl-test { display: flex; flex-direction: column; gap: 4px; padding: var(--sp-3); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); }
.tpl-test-row { display: flex; gap: var(--sp-2); }
.tpl-test-row .input { flex: 1 1 auto; min-width: 0; }
.tpl-test-row .btn { flex: none; }
.tpl-test .test-result { margin-top: 4px; }
.connect-ref-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); flex-wrap: wrap; }
.connect-kind-note .btn { vertical-align: middle; }
.test-form .tpl-data { min-height: 140px; }
@media (max-width: 1099px) {
  .button-opts { grid-template-columns: minmax(0, 1fr); }
}

/* -------------------------------------------------------------- connect */
.connect-segs { display: flex; gap: var(--sp-2); flex-wrap: wrap; }

/* --------------------------------------------------------------- messages */
.mail-frame-tall { height: 520px; }

/* -------------------------------------------------------------------- MCP */
.page-mcp .mcp-layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(420px, 1fr);
  gap: var(--sp-3);
}
.mcp-connect-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-3); }
.mcp-steps { list-style: decimal; padding-left: var(--sp-5); display: flex; flex-direction: column; gap: 4px; font-size: var(--fs-sm); color: var(--text-2); }
.mcp-steps code, .mcp-cmd-actions code { padding: 1px 4px; border-radius: var(--r-sm); background: var(--surface-3); }
.mcp-cmd { white-space: pre-wrap; overflow-wrap: anywhere; }
.mcp-cmd-actions { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.mcp-note { align-items: flex-start; }
.mcp-group { display: flex; flex-direction: column; gap: 6px; }
.mcp-group-title { font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.mcp-tools { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px var(--sp-3); font-size: var(--fs-sm); }
.mcp-tools dt code { font-size: var(--fs-xs); padding: 1px 5px; border-radius: var(--r-sm); background: var(--surface-3); white-space: nowrap; }
.mcp-tools dd { color: var(--text-2); }
.mcp-user { display: inline-flex; align-items: center; gap: 6px; max-width: 240px; }
.mcp-badge::before { display: none; }

@media (max-width: 1399px) {
  .tab-panel-fill:not([hidden]) { overflow: auto; display: block; }
  .tpl-layout { height: auto; grid-template-columns: minmax(220px, 260px) minmax(0, 1fr); }
  .tpl-col-list { grid-row: 1 / span 2; }
  .tpl-col-editor { border-right: 0; border-bottom: 1px solid var(--border); }
  .tpl-col-preview { grid-column: 2; }
  .tpl-col .panel-body { overflow: visible; }
}
/* Branding: form and preview side by side only when the card is wide enough for a 600 px email. */
@media (max-width: 1599px) {
  .tab-panel-fill:not([hidden]):has(.brand-tab) { overflow: auto; display: block; }
  .brand-layout { height: auto; grid-template-columns: minmax(0, 1fr); }
  .brand-left { overflow: visible; border-right: 0; border-bottom: 1px solid var(--border); padding-bottom: var(--sp-2); }
  .brand-left > * { max-width: 760px; }
  .brand-right .pv-stage, .brand-right .pv-stage .mail-frame { min-height: 640px; }
}
@media (max-width: 1279px) {
  .page-mcp .mcp-layout { grid-template-columns: minmax(0, 1fr); overflow: auto; }
}
@media (max-width: 1099px) {
  .tpl-layout, .brand-layout { grid-template-columns: minmax(0, 1fr); }
  .tpl-col-list { grid-row: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .tpl-col-list .panel-body { max-height: 40vh; overflow: auto; }
  .tpl-col-preview { grid-column: auto; }
  .color-grid { grid-template-columns: 1fr; }
  .page-mcp .mcp-layout { overflow: visible; }
}
@media (prefers-reduced-motion: reduce) {
  .pv-spinner { animation-duration: 2s; }
  .pv-stage { transition: none; }
}