:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-strong: #fafafa;
  --panel-soft: #f7f7f8;
  --line: #e5e7eb;
  --line-strong: #d8dbe1;
  --ink: #101114;
  --muted: #70757f;
  --accent: #111111;
  --danger: #b42318;
  --danger-soft: #fef3f2;
  --success-soft: #ecfdf3;
  --success-ink: #067647;
  --shadow: 0 24px 60px rgba(17, 17, 17, 0.06);
  --sidebar-shadow: 0 20px 40px rgba(17, 17, 17, 0.04);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Neue Haas Grotesk Display Pro", "Helvetica Neue", Arial, sans-serif;
}

.shell {
  min-height: 100vh;
  padding: 18px;
}

.login-shell,
.pending-shell {
  min-height: calc(100vh - 36px);
  display: grid;
  place-items: center;
}

.login-card,
.pending-card,
.panel,
.modal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.login-card {
  width: min(420px, 100%);
  padding: 18px;
  display: grid;
  gap: 12px;
}

.pending-card {
  width: min(620px, 100%);
  padding: 28px;
}

.app-shell {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: 18px;
  min-height: calc(100vh - 36px);
}

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(229, 231, 235, 0.9);
  border-radius: 28px;
  box-shadow: var(--sidebar-shadow);
  backdrop-filter: blur(20px);
}

.brand-lockup {
  padding: 6px 4px 10px;
}

.brand-mark {
  display: block;
  font: 700 30px/1 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.02em;
}

.brand-copy {
  margin: 6px 0 0;
  color: var(--muted);
  font: 500 14px/1.4 "Helvetica Neue", Arial, sans-serif;
}

.sidebar-nav {
  display: grid;
  gap: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 16px;
  background: transparent;
  color: var(--ink);
  text-align: left;
  font: 600 15px/1.2 "Neue Haas Grotesk Display Pro", "Helvetica Neue", Arial, sans-serif;
}

.nav-item:hover {
  background: rgba(17, 17, 17, 0.04);
  opacity: 1;
}

.nav-item.active {
  background: var(--accent);
  color: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(17, 17, 17, 0.06);
}

.nav-icon {
  width: 20px;
  text-align: center;
  opacity: 0.75;
}

.nav-item.active .nav-icon {
  opacity: 1;
}

.sidebar-account {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-radius: 20px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
}

.sidebar-account strong {
  display: block;
  margin-bottom: 4px;
  font: 600 15px/1.2 "Helvetica Neue", Arial, sans-serif;
}

.sidebar-signout {
  white-space: nowrap;
}

.app-main {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 18px;
}

.app-topbar {
  padding: 10px 6px 0;
}

.app-topbar h1 {
  margin: 0;
  font: 650 40px/1.05 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.03em;
}

.app-topbar-label {
  margin-bottom: 10px;
}

.app-topbar-subtitle {
  margin: 10px 0 0;
  max-width: 760px;
  font-size: 15px;
}

.view-panel {
  min-width: 0;
}

.content-grid,
.workspace-grid,
.stack {
  display: grid;
  gap: 18px;
  align-items: start;
}

.content-grid {
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.95fr);
}

.content-grid-wide {
  grid-template-columns: 1fr;
}

.workspace-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
}

.panel {
  padding: 22px;
  min-width: 0;
  overflow: hidden;
}

.panel h2,
.panel h3,
.pending-card h2 {
  margin: 0 0 8px;
  font: 620 28px/1.1 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.025em;
}

.panel h3 {
  font-size: 18px;
  letter-spacing: -0.015em;
}

.subpanel {
  margin-top: 16px;
  padding: 18px;
  border-radius: 20px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
}

.subpanel-tight {
  margin-top: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric-grid-compact {
  margin-bottom: 0;
}

.metric-card,
.stat {
  padding: 18px;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--sidebar-shadow);
}

.metric-card strong,
.stat strong {
  display: block;
  margin-top: 12px;
  font: 650 34px/1 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.03em;
}

.metric-label {
  color: var(--muted);
  font: 600 13px/1.2 "Helvetica Neue", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.eyebrow {
  display: inline-block;
  color: var(--muted);
  font: 600 12px/1.1 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.muted,
.pending-copy,
.metric-card p {
  color: var(--muted);
}

.pending-copy {
  margin: 0 0 12px;
  line-height: 1.6;
}

.section-toolbar,
.toolbar,
.editor-actions,
.auth-actions,
.pending-actions,
.modal-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.section-toolbar {
  align-items: start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.auth-actions-stacked {
  flex-direction: column;
}

.auth-main,
.auth-full {
  width: 100%;
}

button,
.button-link {
  border: 0;
  border-radius: 14px;
  padding: 13px 16px;
  cursor: pointer;
  font: 600 14px/1 "Neue Haas Grotesk Display Pro", "Helvetica Neue", Arial, sans-serif;
  transition: background 140ms ease, color 140ms ease, opacity 140ms ease, transform 140ms ease;
}

button:hover,
.button-link:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.primary {
  background: #111111;
  color: #ffffff;
}

.secondary {
  background: #f4f5f7;
  color: #111111;
}

.danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.google-button {
  background: #ffffff;
  color: #111111;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.google-button-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #ffffff;
  padding: 14px 15px;
  color: var(--ink);
  font: 400 15px/1.4 "Helvetica Neue", Arial, sans-serif;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 0;
  border-color: #c1c7d0;
  box-shadow: 0 0 0 4px rgba(17, 17, 17, 0.06);
}

input::placeholder,
textarea::placeholder {
  color: #a1a5ad;
}

textarea {
  min-height: 128px;
  resize: vertical;
}

textarea[readonly] {
  background: #fafafb;
}

label {
  display: block;
  margin: 12px 0 7px;
  color: var(--muted);
  font: 600 13px/1.2 "Helvetica Neue", Arial, sans-serif;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.preview {
  width: 100%;
  min-height: 780px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #ffffff;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 14px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font: 400 14px/1.4 "Helvetica Neue", Arial, sans-serif;
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-weight: 600;
}

.clickable-row {
  cursor: pointer;
}

.clickable-row:hover td {
  background: #fafafb;
}

.table-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.content-grid-single {
  grid-template-columns: 1fr;
}

.audience-actions-panel {
  margin-top: 18px;
}

.inline-toast {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid #d8dde6;
  background: #f8fafc;
  color: #0f172a;
  font: 500 13px/1.4 "Helvetica Neue", Arial, sans-serif;
}

.inline-toast.toast-success {
  border-color: #cde8d5;
  background: #effaf2;
  color: #0f5132;
}

.inline-toast.toast-error {
  border-color: #f3c4cb;
  background: #fff3f5;
  color: #842029;
}

.campaign-name-cell strong,
.campaign-subject-cell strong {
  display: block;
  color: var(--ink);
  font: 600 14px/1.35 "Helvetica Neue", Arial, sans-serif;
}

.campaign-name-cell span,
.campaign-subject-cell span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font: 400 12px/1.35 "Helvetica Neue", Arial, sans-serif;
}

.button-link {
  background: transparent;
  padding: 0;
  text-align: left;
}

.button-link.secondary {
  color: var(--ink);
}

.inline-action {
  padding: 8px 12px;
  border-radius: 10px;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  background: #f4f5f7;
  color: var(--ink);
  font: 600 12px/1 "Neue Haas Grotesk Display Pro", "Helvetica Neue", Arial, sans-serif;
}

.contact-pill.status-subscribed,
.contact-pill.status-sent {
  background: var(--success-soft);
  color: var(--success-ink);
}

.contact-pill.status-unsubscribed,
.contact-pill.status-failed {
  background: var(--danger-soft);
  color: var(--danger);
}

.contact-pill.status-queued,
.contact-pill.status-processing,
.contact-pill.status-test,
.contact-pill.status-partial {
  background: #f2f4f7;
  color: #344054;
}

.asset-preview img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  display: block;
}

.image-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.image-library-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  overflow: hidden;
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.image-library-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(17, 17, 17, 0.06);
}

.image-library-card.is-selected {
  border-color: #111111;
  box-shadow: 0 0 0 2px rgba(17, 17, 17, 0.08);
}

.image-library-thumb {
  aspect-ratio: 4 / 3;
  background: #f5f5f7;
  border-bottom: 1px solid var(--line);
}

.image-library-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-library-meta {
  padding: 12px;
}

.image-library-meta strong {
  display: block;
  color: var(--ink);
  font: 600 13px/1.35 "Helvetica Neue", Arial, sans-serif;
  word-break: break-word;
}

.image-library-meta span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font: 400 12px/1.35 "Helvetica Neue", Arial, sans-serif;
  word-break: break-word;
}

.image-library-meta .image-library-selected {
  margin-top: 8px;
  color: #0f5132;
  font-weight: 600;
}

.image-library-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.welcome-preview-panel {
  margin-top: 18px;
  padding: 20px;
}

.welcome-preview-toolbar {
  margin-bottom: 16px;
}

.welcome-email-preview {
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #f6f6f8 0%, #f2f3f6 100%);
  padding: 16px;
}

.welcome-email-preview-card {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid #ececf0;
  overflow: hidden;
  box-shadow: 0 18px 48px rgba(17, 17, 17, 0.08);
}

.welcome-email-preview-header {
  padding: 28px 24px 8px;
}

.welcome-email-preview-header h4 {
  margin: 0;
  font: 650 32px/1.1 "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.03em;
}

.welcome-email-preview-body {
  padding: 8px 24px 10px;
}

.welcome-email-preview-body p {
  margin: 0 0 18px;
  font: 400 16px/1.7 "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
}

.welcome-email-preview-divider {
  height: 1px;
  margin: 0 24px;
  background: #e6e7eb;
}

.welcome-email-preview-footer {
  padding: 18px 24px 28px;
  font: 400 12px/1.7 "Helvetica Neue", Arial, sans-serif;
  color: #6f6f78;
}

.welcome-email-preview-footer a {
  color: inherit;
  text-decoration: underline;
}

.welcome-email-preview-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--muted);
  font: 600 12px/1.2 "Helvetica Neue", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.step-builder {
  display: grid;
  gap: 14px;
}

.step-row {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.step-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.step-row-header strong {
  font: 600 15px/1.2 "Helvetica Neue", Arial, sans-serif;
}

.status {
  min-height: 22px;
  margin-top: 4px;
  color: var(--ink);
  font: 500 14px/1.3 "Helvetica Neue", Arial, sans-serif;
}

.helper-copy {
  margin-top: 10px;
}

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

.audience-control-row {
  align-items: start;
  margin-top: 10px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(16, 17, 20, 0.28);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 20;
}

.modal-backdrop-wide {
  padding: 20px;
}

.modal-card {
  width: min(540px, 100%);
  padding: 24px;
}

.preview-modal-card {
  width: min(1280px, 100%);
  padding: 24px;
}

.preview-modal-toolbar {
  margin-bottom: 18px;
}

.preview-modal-frame {
  min-height: min(82vh, 980px);
  background: #f5f5f7;
}

.modal-card p {
  margin: 0 0 14px;
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .content-grid,
  .workspace-grid,
  .grid-2,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    position: static;
  }
}

@media (max-width: 980px) {
  .shell {
    padding: 12px;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    gap: 14px;
  }

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

  .sidebar-account {
    align-items: start;
    flex-direction: column;
  }

  .app-topbar h1 {
    font-size: 32px;
  }
}

@media (max-width: 640px) {
  .sidebar-nav {
    grid-template-columns: 1fr;
  }

  .panel,
  .modal-card,
  .pending-card,
  .login-card {
    padding: 18px;
    border-radius: 20px;
  }

  .app-topbar {
    padding: 4px 2px 0;
  }

  .preview {
    min-height: 640px;
  }
}