:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --text: #132033;
  --muted: #64748b;
  --border: #dbe4f0;
  --brand: #1565d8;
  --brand-dark: #0b4aa5;
  --danger: #c62828;
  --success: #1f8f4d;
  --warning: #b26b00;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: linear-gradient(180deg, #eef4ff 0%, var(--bg) 180px);
  color: var(--text);
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

.topbar, .card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(21, 57, 101, 0.08);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
}

.ops-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #e8f0fe;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.email-pill {
  padding: 10px 12px;
  border-radius: 999px;
  background: #f8fbff;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

button {
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  font: inherit;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.btn-primary:hover { background: var(--brand-dark); }

.btn-secondary {
  background: #edf3fd;
  color: var(--brand-dark);
  font-weight: 700;
}

.btn-secondary:hover { background: #dfeaff; }

.layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  margin-top: 20px;
}

.workspace-tabs {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.workspace-tab {
  background: #edf3fd;
  color: var(--brand-dark);
  font-weight: 700;
}

.workspace-tab.active {
  background: var(--brand);
  color: #fff;
}

.workspace-view {
  display: none;
  margin-top: 20px;
}

.workspace-view.active {
  display: block;
}

.card { padding: 22px; }

.card h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.card h3 {
  margin: 0 0 14px;
  font-size: 16px;
}

.card p.lead {
  margin: 0 0 18px;
  color: var(--muted);
}

.composer-field { margin-bottom: 18px; }

label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

textarea, input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 180px;
  resize: vertical;
}

textarea:focus, input:focus {
  outline: none;
  border-color: #8ab4f8;
  box-shadow: 0 0 0 4px rgba(21, 101, 216, 0.12);
}

.char-row {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.channels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.channel {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: #fbfdff;
}

.channel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.channel label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
  cursor: pointer;
}

.channel small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.4;
}

.tag {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.tag.recommended {
  background: #edf8f1;
  color: var(--success);
}

.tag.configured {
  background: #e8f0fe;
  color: var(--brand-dark);
}

.tag.pending {
  background: #fff4dd;
  color: var(--warning);
}

.composer-actions {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.seo-layout {
  grid-template-columns: 1.15fr 0.85fr;
}

.seo-grid {
  display: grid;
  gap: 16px;
}

.seo-section {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fbfdff;
  padding: 16px;
}

.seo-section textarea {
  min-height: 92px;
}

.preview-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.preview-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fbfdff;
  padding: 14px;
}

.preview-card h3 {
  margin-bottom: 10px;
}

.preview-list {
  display: grid;
  gap: 10px;
}

.preview-row {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 10px 12px;
}

.preview-row strong {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 6px;
}

.preview-row span {
  display: block;
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
}

pre {
  margin: 0;
  background: #0f172a;
  color: #dbeafe;
  border-radius: 12px;
  padding: 14px;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.status-line {
  margin-top: 14px;
  min-height: 20px;
  font-size: 14px;
}

.status-line.error { color: var(--danger); }
.status-line.success { color: var(--success); }

.history-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.history-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  background: #fcfdff;
}

.history-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.history-message {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.5;
}

.history-meta {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef3f8;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.provider-results {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.provider-result {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.provider-result strong {
  font-size: 13px;
}

.provider-result span {
  color: var(--muted);
  font-size: 13px;
}

.provider-result.sent { border-color: #b9e2c8; background: #f3fcf6; }
.provider-result.error { border-color: #efc0c0; background: #fff5f5; }
.provider-result.skipped { border-color: #f2ddb1; background: #fffaf0; }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 40, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.overlay.open { display: flex; }

.auth-card {
  width: 420px;
  max-width: 100%;
  background: var(--panel);
  border-radius: 22px;
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 16px 50px rgba(10, 20, 40, 0.22);
}

.auth-card h2 { margin: 0 0 8px; }
.auth-card p { margin: 0 0 16px; color: var(--muted); }

.auth-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.auth-status {
  min-height: 20px;
  margin-top: 10px;
  font-size: 14px;
}

.auth-status.error { color: var(--danger); }
.auth-status.success { color: var(--success); }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .seo-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .shell { padding: 12px; }
  .topbar { flex-direction: column; align-items: flex-start; }
  .topbar-actions { width: 100%; justify-content: space-between; }
  .channels { grid-template-columns: 1fr; }
  .auth-actions, .composer-actions { flex-direction: column; }
  .auth-actions button, .composer-actions button { width: 100%; }
}