:root {
  --bg-canvas: #0b1120;
  --bg-panel: #111827;
  --bg-elevated: #172033;
  --bg-input: #0f172a;
  --border-subtle: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(148, 163, 184, 0.28);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --accent-sky: #0284c7;
  --accent-sky-hover: #0369a1;
  --accent-sky-tint: rgba(2, 132, 199, 0.15);

  --accent-emerald: #059669;
  --accent-emerald-hover: #047857;
  --accent-emerald-text: #34d399;
  --accent-emerald-tint: rgba(16, 185, 129, 0.14);

  --accent-amber: #d97706;
  --accent-amber-text: #fbbf24;
  --accent-amber-tint: rgba(245, 158, 11, 0.15);

  --accent-danger: #dc2626;
  --accent-danger-hover: #b91c1c;
  --accent-danger-text: #f87171;
  --accent-danger-tint: rgba(239, 68, 68, 0.15);

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

code,
pre,
.mono,
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.hidden {
  display: none !important;
}

/* Login Overlay */
.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-canvas);
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

.lock-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-emerald-text);
  background: var(--accent-emerald-tint);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.auth-header h2 {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 700;
}

.auth-header p {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 13px;
}

/* App Shell */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
}

.brand-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.guardrail-chip {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-emerald-tint);
  color: var(--accent-emerald-text);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.brand-subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.topbar-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.status-pill {
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
}

.status-neutral {
  background: var(--bg-elevated);
  color: var(--text-secondary);
}

.status-ok {
  background: var(--accent-emerald-tint);
  color: var(--accent-emerald-text);
  border-color: rgba(52, 211, 153, 0.28);
}

.status-warn {
  background: var(--accent-amber-tint);
  color: var(--accent-amber-text);
  border-color: rgba(251, 191, 36, 0.28);
}

.status-danger {
  background: var(--accent-danger-tint);
  color: var(--accent-danger-text);
  border-color: rgba(248, 113, 113, 0.28);
}

.operator-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 10px;
  border-left: 1px solid var(--border-subtle);
}

.operator-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* 5-Button Workflow Strip */
.workflow-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(170px, 1fr)) minmax(250px, 1.3fr);
  gap: 10px;
  padding: 14px 24px;
  background: #0d1526;
  border-bottom: 1px solid var(--border-subtle);
}

@media (max-width: 1120px) {
  .workflow-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.step-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.14s ease, border-color 0.14s ease;
}

.step-btn:hover:not(:disabled) {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

.step-btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.step-num {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.14);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.step-text strong {
  font-size: 13px;
  font-weight: 600;
}

.step-text small {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.step-btn-accent {
  border-color: rgba(2, 132, 199, 0.45);
  background: rgba(2, 132, 199, 0.12);
}

.step-btn-accent .step-num {
  background: var(--accent-sky);
  color: #fff;
}

.step-btn-emerald {
  border-color: rgba(5, 150, 105, 0.45);
  background: rgba(5, 150, 105, 0.12);
  flex: 1;
}

.step-btn-emerald .step-num {
  background: var(--accent-emerald);
  color: #fff;
}

.step-btn-danger {
  border-color: rgba(220, 38, 38, 0.5);
  background: rgba(220, 38, 38, 0.14);
  flex: 1;
}

.step-btn-danger .step-num {
  background: var(--accent-danger);
  color: #fff;
}

.step-loop-group {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.interval-inline {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.interval-inline input {
  width: 48px;
  padding: 4px 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
}

/* Toast Banner */
.toast-banner {
  margin: 10px 24px 0;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-subtle);
}

.toast-info {
  background: var(--accent-sky-tint);
  color: #7dd3fc;
  border-color: rgba(2, 132, 199, 0.35);
}

.toast-ok {
  background: var(--accent-emerald-tint);
  color: var(--accent-emerald-text);
  border-color: rgba(16, 185, 129, 0.35);
}

.toast-error {
  background: var(--accent-danger-tint);
  color: var(--accent-danger-text);
  border-color: rgba(239, 68, 68, 0.35);
}

/* Workspace Tabs */
.workspace-tabs {
  display: flex;
  gap: 4px;
  padding: 12px 24px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-sky);
}

.tab-count {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-secondary);
}

.tab-optional {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
}

/* Workspace Main Panels */
.workspace-main {
  flex: 1;
  padding: 18px 24px;
}

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

.panel-toolbar h2 {
  margin: 0 0 3px;
  font-size: 16px;
  font-weight: 600;
}

.panel-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.filter-bar input {
  min-width: 260px;
  max-width: 380px;
}

/* Tables */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: #0e1627;
  white-space: nowrap;
}

.data-table th.num,
.data-table td.num {
  text-align: right;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.04);
}

.empty-cell {
  text-align: center !important;
  padding: 32px 16px !important;
  color: var(--text-muted);
}

.sub-mono {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
}

.badge-live {
  background: var(--accent-emerald-tint);
  color: var(--accent-emerald-text);
}

.badge-test {
  background: var(--accent-amber-tint);
  color: var(--accent-amber-text);
}

.badge-sky {
  background: var(--accent-sky-tint);
  color: #7dd3fc;
}

.badge-danger {
  background: var(--accent-danger-tint);
  color: var(--accent-danger-text);
}

.badge-muted {
  background: rgba(148, 163, 184, 0.14);
  color: var(--text-secondary);
}

.reason-cell {
  max-width: 300px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Google Sheet Sync Cards */
.sheet-sync-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 18px;
}

@media (max-width: 960px) {
  .sheet-sync-grid {
    grid-template-columns: 1fr;
  }
}

.sync-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 20px;
}

.sync-card h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.sa-box {
  margin: 16px 0;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.sa-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.sa-email-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.sa-email-row code {
  font-size: 12px;
  color: var(--accent-emerald-text);
  word-break: break-all;
}

.sync-btn-row,
.sync-operations {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.sync-meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* Live SSE Console Drawer */
.console-drawer {
  margin: 0 24px 20px;
  background: #080d19;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
}

.console-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald-text);
}

.live-dot.offline {
  background: var(--accent-amber-text);
}

.console-hint {
  color: var(--text-muted);
}

.console-output {
  margin: 0;
  padding: 12px 14px;
  height: 195px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.55;
  color: #d1d5db;
  white-space: pre-wrap;
  word-break: break-word;
}

.console-drawer.minimized .console-output {
  display: none;
}

/* Forms & Buttons */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 12px;
}

.form-field label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
select {
  padding: 8px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent-sky);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  margin: 6px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.14s ease;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent-sky);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-sky-hover);
}

.btn-secondary {
  background: var(--bg-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--border-strong);
}

.btn-danger {
  background: var(--accent-danger-tint);
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--accent-danger-text);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(148, 163, 184, 0.08);
}

.alert-box {
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 12px;
}

.alert-danger {
  background: var(--accent-danger-tint);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: var(--accent-danger-text);
}

.info-callout {
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 12px;
  background: var(--accent-sky-tint);
  color: #bae6fd;
  border: 1px solid rgba(2, 132, 199, 0.3);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(5, 10, 20, 0.78);
  display: grid;
  place-items: center;
  padding: 18px;
  overflow-y: auto;
}

.modal-box {
  width: 100%;
  max-width: 540px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  overflow: hidden;
}

.modal-lg {
  max-width: 760px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  margin: 0;
  font-size: 16px;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
}

.modal-body {
  padding: 18px 20px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  background: #0d1526;
  border-top: 1px solid var(--border-subtle);
}

.oauth-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
}

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

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 12px;
}

.form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 12px;
}

@media (max-width: 680px) {
  .form-grid-2,
  .form-grid-3,
  .form-grid-4 {
    grid-template-columns: 1fr;
  }
}

.action-card {
  padding: 12px 14px;
  background: #0d1526;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.action-card h4 {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-primary);
}

.formula-preview-box {
  margin-bottom: 14px;
  padding: 10px 12px;
  border-radius: 6px;
  background: #091224;
  border: 1px solid rgba(2, 132, 199, 0.35);
  font-family: var(--font-mono);
  font-size: 12px;
  color: #7dd3fc;
}