/* =========================================================
   PureSurf V3 — App-specific styles
   Extracted from index.html inline <style> block (Fix 6).
   Loaded AFTER design-system.css — these rules win on conflicts.
   ========================================================= */

/* === Skip link (accessibility) === */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: fixed;
  top: 8px;
  left: 8px;
  width: auto;
  height: auto;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  z-index: 9999;
  text-decoration: none;
}

/* === Base === */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: transparent;
  overflow-x: hidden;
}

/* === App Shell === */
#puresurf-shell {
  display: grid;
  grid-template-columns: 230px 1fr;
  grid-template-rows: 56px 1fr;
  grid-template-areas: "topbar topbar" "sidebar main";
  min-height: 100vh;
}

/* === Topbar === */
.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 56px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.topbar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

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

.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px 12px;
}

.user-chip-id {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.hamburger-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
}

/* === Sidebar === */
.sidebar {
  grid-area: sidebar;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  padding: 16px 0;
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
  overflow-y: auto;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.nav-item.active,
.nav-item[aria-current="page"] {
  background: rgba(42, 147, 193, 0.15);
  color: var(--accent);
  font-weight: 600;
}

.nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

/* === Main content === */
.main-content {
  grid-area: main;
  padding: var(--sp6);
  overflow-y: auto;
  min-height: 0;
}

/* === Page structure === */
.page-content {
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.page-head h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
}

/* === Glass card === */
.glass-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--glass-radius);
  padding: var(--sp5);
}

.glass-card h3 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
}

/* === Kill-switch widget === */
.ks-widget {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
}

.ks-status {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.ks-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.ks-status.halted .ks-dot {
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

.ks-label {
  font-size: 16px;
  font-weight: 700;
}

.ks-status.halted .ks-label { color: var(--danger); }
.ks-status.running .ks-label { color: var(--success); }

.ks-meta { flex: 1; }

.ks-reason {
  font-size: 13px;
  color: var(--text-secondary);
}

.ks-manage-btn { flex-shrink: 0; }

/* Kill switch control card */
.ks-control-card { padding: 24px; }

.ks-big-status {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.ks-big-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px var(--success);
  animation: pulse-green 2s ease-in-out infinite;
}

.ks-big-status.halted .ks-big-dot {
  background: var(--danger);
  box-shadow: 0 0 12px var(--danger);
  animation: pulse-red 1s ease-in-out infinite;
}

.ks-big-label {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.ks-big-status.halted .ks-big-label { color: var(--danger); }
.ks-big-status.running .ks-big-label { color: var(--success); }

.ks-detail-reason, .ks-detail-who {
  margin: 4px 0;
  color: var(--text-secondary);
}

.ks-buttons { margin-top: 20px; }

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 8px var(--success); }
  50% { box-shadow: 0 0 20px var(--success); }
}

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 8px var(--danger); }
  50% { box-shadow: 0 0 20px var(--danger); }
}

/* === Summary bar (app-specific grid layout — overrides design-system .summary-card) === */
.summary-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* App summary-card: centered flex column (overrides design-system's glass card with border-left) */
.summary-bar .summary-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--glass-radius);
  padding: var(--sp5);
  /* Reset design-system border-left accents for app cards */
  border-left: 1px solid var(--glass-border);
}

.summary-icon { font-size: 24px; }

.summary-value {
  font-size: 32px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.summary-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

/* === Quick links === */
.quick-links .qa-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.qa-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
}

.qa-btn:hover {
  background: rgba(42, 147, 193, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* === Accounts === */
.accounts-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.account-card { padding: 16px 20px; }

.account-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.account-platform {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 4px;
}

.account-handle {
  font-size: 16px;
  font-weight: 600;
}

.account-handle-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.account-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.account-warmup { margin-bottom: 12px; }

.account-warmup-label {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 4px;
}

.progress {
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width 0.3s;
}

.account-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* === Health detail ===
   App uses .kpi as a horizontal key-value row — overrides design-system's
   vertical flex-column KPI widget used in dashboard contexts. */
.health-detail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.health-detail .kpi {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  /* Reset design-system column layout */
  flex-direction: row;
  gap: 0;
}

.health-detail .kpi:last-child {
  border-bottom: none;
}

.health-detail .kpi-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  /* Reset design-system uppercase label */
  text-transform: none;
  letter-spacing: 0;
}

.health-detail .kpi-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  text-align: right;
}

/* KPI row layout for connection cap etc */
.kpi-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.kpi-row .kpi {
  flex-direction: column;
  gap: var(--sp1);
  border-bottom: none;
  padding: 0;
  min-width: 80px;
}

.kpi-row .kpi-label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-row .kpi-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  text-align: left;
}

/* Health status alert banner */
.health-alert-banner {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--warning);
  margin-bottom: 8px;
}

/* === Nav tabs (Actions page — pill style, scrollable)
   These rules override design-system.css .nav-tabs / .nav-tab which use
   a topbar tab-underline pattern. App uses pill/rounded style. === */
.nav-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 4px;
  /* Override design-system sticky positioning */
  position: static;
  top: auto;
  z-index: auto;
  border-bottom: none;
  /* Base: not scrollable (scrollable variant below) */
  width: fit-content;
  overflow-x: visible;
}

.nav-tabs-scroll-wrap {
  position: relative;
}

/* Scrollable variant applied to Actions tabs (Fix 3) */
.nav-tabs-scrollable {
  overflow-x: auto;
  scroll-behavior: smooth;
  white-space: nowrap;
  /* Fade right edge when scrollable */
  -webkit-mask-image: linear-gradient(to right, black 85%, transparent 100%);
  mask-image: linear-gradient(to right, black 85%, transparent 100%);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  width: 100%;
  max-width: 100%;
}

.nav-tabs-scrollable::-webkit-scrollbar {
  height: 4px;
}

.nav-tabs-scrollable::-webkit-scrollbar-track {
  background: transparent;
}

.nav-tabs-scrollable::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* Tab description line shown beneath active tab title */
.nav-tab-desc {
  font-size: 12px;
  color: var(--text-muted);
  padding: 4px 6px 0;
  min-height: 18px;
}

.nav-tab {
  /* Override design-system underline tab style */
  padding: 8px 16px;
  border-radius: var(--radius);
  background: none;
  border: none;
  border-bottom: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  display: inline-block;
}

.nav-tab:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-bottom-color: transparent;
}

.nav-tab.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  border-bottom-color: transparent;
}

.tab-content { margin-top: 16px; }

/* === Action result === */
.action-result {
  margin-top: 16px;
  padding: 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  font-size: 13px;
}

.action-result p { margin: 4px 0; }

.result-success { color: var(--success); }

/* === Workflows === */
.workflow-card { padding: 16px 20px; }

.workflow-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.workflow-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.workflow-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.workflow-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* === Steps === */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.step-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-number {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  width: 20px;
  flex-shrink: 0;
}

/* === Auth wrap === */
.auth-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-2xl);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 4px;
}

.auth-title {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  text-align: center;
}

.auth-subtitle {
  margin: 0 0 8px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.portal-login-btn {
  text-align: center;
  text-decoration: none;
  display: block;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-error {
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  color: var(--danger);
  font-size: 13px;
}

/* === Form inputs === */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.field-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}

.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(42, 147, 193, 0.2);
}

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

.field-hint {
  font-size: 12px;
  color: var(--text-muted);
}

.field-error {
  font-size: 12px;
  color: var(--danger);
}

select.field-input { cursor: pointer; }

textarea.field-input {
  resize: vertical;
  min-height: 80px;
}

/* === Buttons (app-specific overrides — must come after design-system) === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: #2483ad;
  filter: none;
}

.btn-secondary {
  background: var(--glass-bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

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

/* App danger button: tinted (not solid red like design-system) */
.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--danger);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-full { width: 100%; }

/* === Pills / badges === */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.pill-green { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.pill-amber { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.pill-red   { background: rgba(239, 68, 68, 0.15);  color: var(--danger);  }
.pill-blue  { background: rgba(42, 147, 193, 0.15); color: var(--accent);  }
.pill-muted { background: var(--bg-elevated);        color: var(--text-muted); }

/* === Table === */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

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

.table-wrapper th {
  background: var(--bg-elevated);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table-wrapper td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

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

.table-wrapper tr:hover td { background: var(--bg-hover); }

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius);
  transition: background 0.15s;
}

.modal-close-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* === Toast === */
.toast-wrap {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  max-width: 360px;
  animation: toast-in 0.2s ease;
  pointer-events: auto;
}

.toast-error {
  background: #2a1010;
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

.toast-success {
  background: #0a2a1a;
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #6ee7b7;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* === Spinner === */
.spinner-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Empty state === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  gap: 10px;
  text-align: center;
}

.empty-icon {
  font-size: 36px;
  margin-bottom: 4px;
}

.empty-title {
  font-size: 16px;
  font-weight: 700;
}

.empty-body {
  font-size: 14px;
  color: var(--text-muted);
}

/* === Misc === */
.text-muted { color: var(--text-muted); font-size: 13px; }
.error-text { color: var(--danger); }
.mono { font-family: "SF Mono", Consolas, Monaco, monospace; font-size: 12px; }
.section-divider { border: none; border-top: 1px solid var(--border); margin: 8px 0; }

hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }

/* === Responsive === */
@media (max-width: 900px) {
  #puresurf-shell { grid-template-columns: 64px 1fr; }
  .sidebar { padding: 12px 0; }
  .nav-label { display: none; }
  .nav-item { justify-content: center; padding: 12px; }
  .nav-icon { width: auto; }
}

@media (max-width: 600px) {
  #puresurf-shell {
    grid-template-columns: 1fr;
    grid-template-areas: "topbar" "main";
  }
  .sidebar {
    position: fixed;
    left: 0;
    top: 56px;
    width: 230px;
    height: calc(100vh - 56px);
    transform: translateX(-100%);
    z-index: 90;
    transition: transform 0.25s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .hamburger-btn { display: block; }
  .nav-label { display: block; }
  .nav-item { justify-content: flex-start; }
  .main-content { grid-area: main; }
  .summary-bar { grid-template-columns: 1fr; }
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}


/* ============================================================
   P3 UX Polish — 2026-08-29
   Changes:
   A. Verification code entry section (was missing CSS entirely)
   B. Compact empty state inside glass-card (reduce excess padding)
   C. Page-head bottom separator (visual hierarchy)
   D. Messaging success feedback (semantic class, not .login-error abuse)
   E. Sync Inbox button loading state (see app.js for .syncing class)
   ============================================================ */

/* A. Verification code section — account card inline widget */
.verification-code-section {
  margin-top: 12px;
  padding: 14px 16px;
  background: rgba(42, 147, 193, 0.08);
  border: 1px solid rgba(42, 147, 193, 0.25);
  border-radius: var(--radius-lg);
}

.verification-code-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 10px;
}

.verification-code-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.verification-code-input {
  width: 110px;
  padding: 8px 12px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 4px;
  text-align: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: "SF Mono", Consolas, Monaco, monospace;
  outline: none;
  transition: border-color 0.15s;
}

.verification-code-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(42, 147, 193, 0.2);
}

.verification-code-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin: 8px 0 0;
}

/* B. Compact empty state when nested inside glass-card */
.glass-card .empty-state {
  padding: 32px 24px;
}

/* C. Visual separator beneath page-head title */
.page-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 4px;
}

/* D. Messaging compose success feedback (semantic class) */
.feedback-success {
  padding: 10px 14px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius);
  color: var(--success);
  font-size: 13px;
}

/* E. Sync button loading state */
#msg-sync-btn.syncing {
  opacity: 0.65;
  cursor: wait;
  pointer-events: none;
}