:root {
  color-scheme: light;
  --ink: #18212f;
  --muted: #647085;
  --line: #d9e0eb;
  --panel: #ffffff;
  --surface: #f4f7fb;
  --nav: #111927;
  --nav-soft: #202b3d;
  --blue: #275efe;
  --green: #0f8f6f;
  --amber: #b86b00;
  --red: #b42318;
  --shadow: 0 18px 50px rgba(24, 33, 47, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--surface);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.preview-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: 148px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 10px;
  background: var(--nav);
  color: #eef4ff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 7px;
}

.brand-mark {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 8px;
  background: #ffffff;
  color: var(--nav);
  font-weight: 800;
  font-size: 0.8rem;
}

.brand strong,
.brand span {
  display: block;
}

.brand span,
.sandbox-flag span {
  margin-top: 2px;
  color: #aeb9cb;
  font-size: 0.66rem;
  line-height: 1.18;
}

.sandbox-flag {
  margin: 10px 0;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: var(--nav-soft);
}

.sandbox-flag strong,
.sandbox-flag span {
  display: block;
}

.mode-switch {
  display: grid;
  gap: 4px;
  margin-bottom: 10px;
}

.mode-button {
  min-height: 25px;
  padding: 4px 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #d6dfec;
  font-size: 0.66rem;
  text-align: left;
  font-weight: 800;
}

.mode-button.is-active {
  background: #dbe8ff;
  color: var(--nav);
}

.nav-list {
  display: grid;
  gap: 2px;
}

.nav-label {
  margin-top: 6px;
  color: #8fa0ba;
  font-size: 0.58rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.nav-label:first-child {
  margin-top: 0;
}

.nav-item {
  width: 100%;
  min-height: 22px;
  padding: 3px 5px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #d6dfec;
  font-size: 0.68rem;
  text-align: left;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.nav-item:hover,
.nav-item:focus-visible {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.nav-item.is-active {
  background: #ffffff;
  color: var(--nav);
  font-weight: 750;
}

.workspace {
  min-width: 0;
  padding: 18px clamp(14px, 3vw, 30px) 34px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.mode-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0 0 12px;
  padding: 8px 10px;
  border: 1px solid #c7d7ff;
  border-radius: 8px;
  background: #eef3ff;
  color: #2346a0;
}

.mode-banner strong,
.mode-banner span {
  display: block;
}

.mode-banner span {
  color: #415985;
  line-height: 1.35;
}

body[data-mode="customer"] .admin-only {
  display: none !important;
}

body[data-mode="admin"] .customer-only {
  display: none !important;
}

body[data-mode="admin"][data-admin-payment-loaded="false"] #paymentWorkspace {
  display: none;
}

body[data-mode="admin"][data-admin-payment-loaded="true"] #paymentEmptyState {
  display: none;
}

body[data-mode="customer"] .preview-shell {
  grid-template-columns: 252px minmax(0, 1fr);
}

body[data-mode="customer"] .brand span {
  color: #d3dceb;
}

body[data-mode="customer"] .customer-message-panel {
  grid-column: 1 / -1;
}

.topbar h1,
.section-head h2,
.panel h3 {
  margin: 0;
  letter-spacing: 0;
}

.topbar h1 {
  max-width: 720px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 0.98;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.session-card {
  min-width: 190px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 10px 30px rgba(24, 33, 47, 0.08);
}

.session-card span,
.session-card strong {
  display: block;
}

.session-card span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
}

.session-card strong {
  margin-top: 6px;
  font-size: 1.2rem;
}

.portal-tab {
  display: none;
}

.portal-tab.is-active {
  display: block;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(1.35rem, 2.5vw, 2.2rem);
}

.sub-section-head {
  margin-top: 24px;
}

.status-pill {
  flex: 0 0 auto;
  padding: 8px 11px;
  border: 1px solid #c7d7ff;
  border-radius: 999px;
  background: #eef3ff;
  color: #2346a0;
  font-size: 0.82rem;
  font-weight: 800;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.debt-facts-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.customer-identity-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.customer-identity-card strong,
.customer-identity-card span {
  display: block;
}

.customer-identity-card > div:first-child strong {
  font-size: clamp(1.5rem, 3vw, 2.35rem);
}

.customer-identity-card > div:last-child {
  min-width: 190px;
  text-align: right;
}

.customer-identity-card > div:last-child span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.response-analytics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.payment-activity-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.activity-group-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.inbox-board-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.metric-card,
.panel,
.mini-metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.metric-card,
.mini-metric {
  min-height: 138px;
  padding: 16px;
}

.metric-card span,
.metric-card small,
.mini-metric span,
.mini-metric small {
  display: block;
  color: var(--muted);
}

.metric-card span,
.mini-metric span {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metric-card strong,
.mini-metric strong {
  display: block;
  margin: 18px 0 10px;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  letter-spacing: 0;
}

.metric-card small,
.mini-metric small {
  line-height: 1.35;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 18px;
}

.payment-account-gate {
  margin-bottom: 14px;
}

.payment-empty-state {
  margin-bottom: 14px;
}

.payment-workspace {
  display: grid;
  gap: 18px;
}

.communications-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 0.82fr) minmax(0, 1.36fr);
  gap: 6px;
  align-items: start;
}

.compact-message-grid {
  display: grid;
  gap: 7px;
}

.compact-communications #campaignForm {
  display: grid;
  height: auto;
  min-height: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  overflow: visible;
}

.compact-communications .template-library-panel {
  display: grid;
  height: auto;
  min-height: 0;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 4px;
  overflow: visible;
}

.compact-communications #campaignForm .panel-head,
.compact-communications .template-library-panel .panel-head {
  grid-column: 1 / -1;
}

.compact-communications #campaignForm > .field {
  margin-bottom: 0;
}

.compact-communications #campaignForm .template-select-grid {
  grid-column: 1 / span 2;
  gap: 4px;
}

.compact-communications #campaignForm .campaign-body-field {
  grid-column: 3 / -1;
  grid-row: 2 / span 2;
}

.compact-communications #campaignForm .primary-action {
  grid-column: 1 / span 2;
}

.compact-communications #campaignForm #campaignResult {
  grid-column: 3 / -1;
  margin-top: 0;
}

.compact-communications .template-library-panel .file-drop {
  grid-column: 1;
}

.compact-communications .template-library-panel .template-list {
  grid-column: 2;
}

.compact-communications .template-library-panel .primary-action,
.compact-communications .template-library-panel #templateResult {
  grid-column: 3;
}

.compact-communications .history-analytics-panel {
  grid-column: 1 / span 2;
  max-height: 168px;
  overflow: auto;
}

.compact-live-panel {
  grid-column: 3;
  grid-row: 2;
}

.compact-message-grid,
.compact-live-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-live-grid {
  display: grid;
  gap: 7px;
}

.compact-communications .panel {
  padding: 5px;
  font-size: 0.68rem;
}

.compact-communications .panel-head {
  margin-bottom: 3px;
}

.compact-communications h3 {
  font-size: 0.72rem;
}

.compact-communications .eyebrow {
  font-size: 0.54rem;
}

.compact-communications .field {
  margin-bottom: 3px;
}

.event-lookup-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3px;
  margin-bottom: 4px;
}

.event-criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
}

.event-tab {
  min-height: 22px;
  padding: 3px 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfe;
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 800;
}

.event-tab.is-active {
  border-color: #9bb7ff;
  background: #eef3ff;
  color: var(--blue);
}

.compact-criteria {
  margin-bottom: 4px;
}

.event-lookup-list {
  display: grid;
  gap: 3px;
  max-height: 72px;
  overflow: auto;
}

.compact-communications input,
.compact-communications select,
.compact-communications textarea {
  min-height: 24px;
  padding: 4px 6px;
  font-size: 0.66rem;
}

.compact-communications textarea {
  min-height: 42px;
}

.compact-communications .primary-action {
  min-height: 25px;
  padding: 4px 7px;
  font-size: 0.66rem;
}

.compact-communications .file-drop {
  padding: 5px;
}

.compact-communications .template-list {
  max-height: none;
  overflow: visible;
}

.compact-rules {
  margin-top: 4px;
}

.compact-communications .message-item,
.compact-communications .event-card,
.compact-communications .event-lookup-row,
.compact-communications .rule-stack span,
.compact-communications .template-row,
.compact-communications .inbox-row,
.compact-communications .result-box {
  padding: 4px;
}

.compact-communications .message-item span,
.compact-communications .event-card span,
.compact-communications .event-lookup-row span,
.compact-communications .rule-stack span,
.compact-communications .template-row span,
.compact-communications .inbox-row span,
.compact-communications .event-lookup-row small,
.compact-communications .inbox-row small {
  margin-top: 2px;
  line-height: 1.12;
}

.compact-communications .message-item strong,
.compact-communications .event-card strong,
.compact-communications .event-lookup-row strong,
.compact-communications .template-row strong,
.compact-communications .inbox-row strong {
  line-height: 1.08;
}

.event-lookup-row {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfe;
  text-align: left;
}

.event-lookup-row strong,
.event-lookup-row span,
.event-lookup-row small {
  display: block;
}

.event-lookup-row span {
  color: var(--muted);
}

.event-lookup-row small {
  color: var(--blue);
  font-weight: 800;
}

.compact-communications .compact-live-list {
  gap: 3px;
  max-height: 116px;
  overflow: auto;
}

.compact-communications .message-list,
.compact-communications .event-grid {
  gap: 3px;
  max-height: 82px;
  overflow: auto;
}

.compact-communications .result-box {
  margin-top: 4px;
  line-height: 1.18;
}

.launchpad-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.launchpad-card {
  display: grid;
  gap: 10px;
  min-height: 170px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  text-align: left;
  box-shadow: var(--shadow);
}

.launchpad-card span {
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
}

.launchpad-card strong {
  font-size: 1.2rem;
}

.launchpad-card small {
  color: var(--muted);
  line-height: 1.35;
}

.panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel h3 {
  font-size: 1.05rem;
}

.action-stack,
.timeline,
.message-list,
.document-list,
.rule-stack,
.schedule-list,
.event-grid,
.funnel-list,
.agent-score-list,
.check-list,
.inbox-list,
.ledger-list,
.account-list,
.template-list,
.channel-stats-grid {
  display: grid;
  gap: 10px;
}

.channel-stats-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.customer-messages {
  display: grid;
  gap: 18px;
}

.conversation-list {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
}

.conversation-row {
  max-width: 86%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfe;
}

.conversation-row.is-customer {
  justify-self: end;
  border-color: #bde6d9;
  background: #effaf6;
}

.conversation-row strong,
.conversation-row span {
  display: block;
}

.conversation-row span {
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.4;
}

.inline-message-form {
  display: grid;
  gap: 10px;
}

.inline-message-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  resize: vertical;
}

.action-row,
.document-row,
.event-card,
.timeline-item,
.message-item,
.schedule-row,
.rule-stack span,
.method-card,
.secure-box,
.result-box,
.agent-score-card,
.check-row,
.inbox-row,
.ledger-row,
.file-drop,
.account-row,
.account-profile-card,
.template-row,
.channel-stat-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfe;
}

.action-row {
  width: 100%;
  padding: 15px;
  text-align: left;
}

.action-row strong,
.action-row span,
.method-card strong,
.method-card span,
.secure-box strong,
.secure-box span,
.document-row strong,
.document-row span {
  display: block;
}

.action-row span,
.document-row span,
.method-card span,
.secure-box span {
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.4;
}

.timeline-item,
.message-item,
.schedule-row,
.event-card,
.document-row,
.rule-stack span,
.method-card,
.secure-box,
.result-box,
.agent-score-card,
.check-row,
.inbox-row,
.ledger-row,
.file-drop,
.account-row,
.account-profile-card,
.template-row,
.channel-stat-card {
  padding: 13px;
}

.timeline-item strong,
.message-item strong,
.schedule-row strong,
.event-card strong,
.agent-score-card strong,
.check-row strong,
.inbox-row strong,
.ledger-row strong,
.account-row strong,
.account-profile-card strong,
.template-row strong,
.channel-stat-card strong {
  display: block;
}

.timeline-item span,
.message-item span,
.schedule-row span,
.event-card span,
.agent-score-card span,
.check-row span,
.inbox-row span,
.ledger-row span,
.account-row span,
.account-profile-card span,
.template-row span,
.channel-stat-card span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.38;
}

.agent-score-card small,
.inbox-row small,
.ledger-row small,
.account-row small,
.template-row small,
.channel-stat-card small {
  display: block;
  margin-top: 7px;
  color: var(--blue);
  font-weight: 800;
  line-height: 1.35;
}

.inbox-row {
  width: 100%;
  text-align: left;
}

.account-row {
  width: 100%;
  text-align: left;
}

.account-row.is-selected {
  border-color: #9bb5ff;
  background: #eef3ff;
}

.account-profile-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.account-profile-card h3 {
  margin: 0;
  font-size: 1.35rem;
}

.account-profile-card > div:last-of-type {
  min-width: 170px;
}

.account-profile-card > div:last-of-type span {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.account-profile-card > div:last-of-type strong {
  margin-top: 6px;
  font-size: 1.65rem;
}

.file-drop {
  display: grid;
  gap: 7px;
  min-height: 130px;
  place-items: center;
  text-align: center;
}

.file-drop input {
  max-width: 100%;
}

.file-drop span {
  color: var(--muted);
}

.compact-drop {
  min-height: 100px;
  margin-bottom: 10px;
}

.follow-grid {
  margin-top: 18px;
}

.form-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.template-select-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.choice-card {
  position: relative;
  display: grid;
  gap: 7px;
  min-height: 128px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfe;
}

.choice-card input[type="radio"] {
  position: absolute;
  inset: 12px 12px auto auto;
  accent-color: var(--blue);
}

.choice-card span {
  padding-right: 25px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.choice-card strong {
  align-self: end;
  font-size: 1.25rem;
}

.amount-input,
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
}

.amount-input {
  align-self: end;
  padding: 9px 10px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  min-height: 44px;
  padding: 10px 12px;
}

.field textarea {
  resize: vertical;
}

.rule-note {
  padding: 12px;
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  background: #fff7e8;
  color: #704400;
  line-height: 1.4;
}

.primary-action {
  min-height: 46px;
  padding: 12px 15px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: #ffffff;
  font-weight: 800;
}

.primary-action:hover,
.primary-action:focus-visible {
  background: #164bd6;
  outline: none;
}

.hosted-preview {
  align-content: start;
}

.secure-box {
  border-color: #b8dacd;
  background: #effaf6;
}

.secure-box strong {
  color: var(--green);
}

.result-box {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.45;
}

.event-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.event-card strong {
  color: var(--blue);
}

.is-warning {
  border-color: #ffd18a;
  background: #fff8eb;
}

.is-danger {
  border-color: #ffc7c2;
  background: #fff4f3;
}

.is-success {
  border-color: #bde6d9;
  background: #effaf6;
}

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

  .sidebar {
    position: static;
    height: auto;
  }

  .nav-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workspace {
    padding: 20px;
  }

  .topbar,
  .section-head,
  .mode-banner,
  .customer-identity-card {
    align-items: stretch;
    flex-direction: column;
  }

  .metric-grid,
  .debt-facts-grid,
  .response-analytics-grid,
  .payment-activity-grid,
  .activity-group-grid,
  .inbox-board-grid,
  .content-grid,
  .communications-grid,
  .compact-message-grid,
  .compact-live-grid,
  .event-criteria-grid,
  .launchpad-grid,
  .option-grid,
  .template-select-grid {
    grid-template-columns: 1fr;
  }

  .customer-identity-card > div:last-child {
    min-width: 0;
    text-align: left;
  }
}

@media (max-width: 560px) {
  .nav-list,
  .event-grid,
  .channel-stats-grid {
    grid-template-columns: 1fr;
  }

  .topbar h1 {
    font-size: 2.1rem;
  }

  body[data-mode="customer"] .workspace {
    padding: 14px;
  }

  body[data-mode="customer"] .sidebar {
    padding: 16px;
  }

  body[data-mode="customer"] .nav-item,
  body[data-mode="customer"] .primary-action {
    min-height: 50px;
    font-size: 1rem;
  }

  body[data-mode="customer"] .topbar h1 {
    font-size: 1.85rem;
    line-height: 1.08;
  }

  body[data-mode="customer"] .section-head h2 {
    font-size: 1.4rem;
  }

  .metric-card {
    min-height: 118px;
  }
}