/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Design tokens ─────────────────────────────────────────────── */
:root {
  --bg:            #07090d;
  --surface:       #0d1117;
  --surface-2:     #131b24;
  --surface-3:     #1a2535;
  --border:        #1c2b3a;
  --border-hi:     #243448;

  --accent:        #f59e0b;
  --accent-hi:     #fbbf24;
  --accent-glow:   rgba(245,158,11,0.18);
  --accent-dim:    rgba(245,158,11,0.07);
  --accent-border: rgba(245,158,11,0.28);

  --danger:        #ef4444;
  --danger-hi:     #f87171;
  --danger-glow:   rgba(239,68,68,0.14);
  --danger-dim:    rgba(239,68,68,0.07);
  --danger-border: rgba(239,68,68,0.3);

  --success:       #34d399;
  --info:          #60a5fa;

  --text:          #e2e8f0;
  --text-dim:      #94a3b8;
  --text-muted:    #4e6076;

  --radius:        6px;
  --radius-sm:     4px;
  --radius-lg:     10px;

  --font-ui:       'DM Sans', system-ui, sans-serif;
  --font-mono:     'DM Mono', 'Fira Code', 'Consolas', monospace;
  --font-display:  'Syne', var(--font-ui);
}

/* ── Base ──────────────────────────────────────────────────────── */
html { height: 100%; }

body {
  min-height: 100%;
  background-color: var(--bg);
  /* Subtle grid — feels like a command-room display */
  background-image:
    linear-gradient(rgba(28,43,58,0.45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,43,58,0.45) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 28px 56px;
}

/* ── Brand bar ──────────────────────────────────────────────────── */
.brand-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 22px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}

.brand-left {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-mark {
  color: var(--accent);
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}

.brand-sep {
  color: var(--accent);
  font-weight: 400;
  margin: 0 1px;
}

.brand-sub {
  color: var(--text-muted);
  font-weight: 600;
}

.brand-env {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 3px;
  padding: 3px 9px;
}

/* ── Typography ─────────────────────────────────────────────────── */
h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

h3 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 14px;
}

.hint strong {
  color: var(--text-dim);
  font-weight: 600;
}

.opt {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
  font-style: italic;
}

/* ── Login ──────────────────────────────────────────────────────── */
.pane {
  padding: 52px 0 40px;
}

#firebase-section,
#totp-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 38px 40px 36px;
  max-width: 420px;
  margin: 0 auto;
  position: relative;
  /* Accent stripe at the top */
  box-shadow: inset 0 1px 0 0 var(--accent);
}

.login-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

/* ── Fields ─────────────────────────────────────────────────────── */
.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.855rem;
  padding: 8px 11px;
  outline: none;
  transition: border-color 0.14s, box-shadow 0.14s;
  resize: vertical;
  -webkit-appearance: none;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.field select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%234e6076' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.field select option {
  background: var(--surface-2);
  color: var(--text);
}

.totp-input {
  font-size: 1.5rem !important;
  letter-spacing: 0.3em;
  text-align: center;
  padding: 12px 16px !important;
}

.checkbox-field label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  font-size: 0.83rem;
  color: var(--text-dim);
}

.checkbox-field input[type="checkbox"] {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
  border-radius: 2px;
}

.checkbox-group {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.checkbox-group .field {
  margin-bottom: 0;
}

/* 2-col grid for op fields */
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 14px;
}

.field-grid .field {
  min-width: 0;
}

.field-grid .span-2 {
  grid-column: span 2;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--accent);
  color: #0a0500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background 0.14s, box-shadow 0.14s, opacity 0.14s;
  margin-right: 8px;
  margin-top: 4px;
}

button:hover:not(:disabled) {
  background: var(--accent-hi);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border-hi);
  box-shadow: none;
}

button.secondary:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: none;
}

button.small {
  font-size: 0.78rem;
  padding: 5px 11px;
  margin-top: 0;
}

button.danger-btn {
  background: var(--danger);
  color: #fff;
}

button.danger-btn:hover:not(:disabled) {
  background: var(--danger-hi);
  box-shadow: 0 0 0 3px var(--danger-glow);
}

/* ── Session bar ────────────────────────────────────────────────── */
.session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 18px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.session-items {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 0;
}

.session-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 16px;
  border-right: 1px solid var(--border);
}

.session-item:first-child {
  padding-left: 0;
}

.session-item:last-child {
  border-right: none;
}

.session-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.session-item strong {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Tab bar ────────────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
  gap: 2px;
}

.tab-btn {
  background: none;
  color: var(--text-muted);
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  margin: 0 0 -1px;
  padding: 9px 20px;
  font-family: var(--font-ui);
  font-size: 0.845rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: color 0.14s, border-color 0.14s;
  box-shadow: none;
}

.tab-btn:hover:not(:disabled) {
  color: var(--text-dim);
  background: none;
  box-shadow: none;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* ── Global confirmation notice ─────────────────────────────────── */
.global-notice {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 7px 12px;
  margin-bottom: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.global-notice svg {
  flex-shrink: 0;
  color: var(--info);
}

/* ── Op cards ───────────────────────────────────────────────────── */
.op-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px 16px;
  margin-bottom: 10px;
  transition: border-color 0.14s;
}

.op-card:hover {
  border-color: var(--border-hi);
}

.op-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.op-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 8px;
  letter-spacing: 0.04em;
}

.op-card.danger {
  border-color: var(--danger-border);
  border-left: 3px solid var(--danger);
  background: var(--surface);
}

.op-card.danger .op-card-header h3 {
  color: var(--danger-hi);
}

.danger-tag {
  color: var(--danger);
  border-color: var(--danger-border);
  background: var(--danger-dim);
}

.form-footer {
  display: flex;
  align-items: center;
  padding-top: 6px;
  flex-wrap: wrap;
  gap: 4px;
}

/* ── Delete zone notice ──────────────────────────────────────────── */
.delete-zone-notice {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--danger-dim);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  margin-bottom: 16px;
  font-size: 0.8rem;
  color: var(--danger-hi);
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.delete-zone-notice svg {
  flex-shrink: 0;
  color: var(--danger);
}

/* ── Op status line ──────────────────────────────────────────────── */
.op-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-left: 6px;
  vertical-align: middle;
}

.op-status.op-error { color: var(--danger); }
.op-status.op-info  { color: var(--accent); }
.op-status.op-ok    { color: var(--success); }

/* ── Modal ───────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 12, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg);
  padding: 30px 32px 28px;
  width: 520px;
  max-width: calc(100vw - 32px);
  box-shadow:
    0 0 0 1px rgba(245,158,11,0.12),
    0 24px 72px rgba(0,0,0,0.7);
  /* Amber top inset stripe */
  box-shadow:
    inset 0 1px 0 0 var(--accent),
    0 24px 72px rgba(0,0,0,0.7);
}

.modal-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  text-transform: none;
}

.preview-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 2px solid var(--info);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.775rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow-y: auto;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.error-msg {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--danger-hi);
  background: var(--danger-dim);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  margin-bottom: 14px;
  line-height: 1.4;
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}

/* ── Audit log panes ─────────────────────────────────────────────── */
.log-pane {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.log-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.log-pane-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
}

.log-pane-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-green  { background: var(--success); box-shadow: 0 0 4px var(--success); }
.dot-amber  { background: var(--accent);  box-shadow: 0 0 4px var(--accent); }

.log-box {
  background: #040608;
  padding: 12px 16px;
  min-height: 72px;
  max-height: 300px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.65;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.log-box:empty::after {
  content: 'No entries.';
  color: var(--text-muted);
  font-style: italic;
}

.log-entry {
  color: #748fa8;
  margin-bottom: 1px;
  white-space: pre-wrap;
  word-break: break-all;
}

.log-entry.log-error { color: #f87171; }
.log-entry.log-ok    { color: #4ade80; }

/* ── Structured audit rows ───────────────────────────────────────── */
.audit-row {
  padding: 7px 0;
  border-bottom: 1px solid rgba(28,43,58,0.6);
}

.audit-row:last-child { border-bottom: none; }

.audit-main {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.audit-ts {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  min-width: 138px;
  flex-shrink: 0;
}

.audit-event {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 500;
  padding: 1px 7px;
  border-radius: 3px;
  border: 1px solid;
}

.ev-success  { color: #4ade80; background: rgba(52,211,153,0.08); border-color: rgba(52,211,153,0.2); }
.ev-failure  { color: #fca5a5; background: rgba(239,68,68,0.10);  border-color: rgba(239,68,68,0.25); }
.ev-locked   { color: #f87171; background: rgba(239,68,68,0.14);  border-color: rgba(239,68,68,0.35); }
.ev-initiate { color: #93c5fd; background: rgba(96,165,250,0.09); border-color: rgba(96,165,250,0.22); }
.ev-neutral  { color: var(--text-muted); background: var(--surface-2); border-color: var(--border); }

.audit-op {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 3px;
  padding: 1px 7px;
}

.audit-req {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.audit-detail-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 5px;
  padding-left: 144px; /* align under event badge, past the timestamp */
}

.audit-kv {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: rgba(30,45,66,0.5);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
}

.ak { color: var(--text-muted); }
.av { color: #94a3b8; font-weight: 500; }

/* ── UID lookup chips ───────────────────────────────────────────── */
.uid-lookup {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.uid-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(96,165,250,0.07);
  border: 1px solid rgba(96,165,250,0.22);
  border-radius: 3px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--info);
}

.uid-chip strong {
  font-weight: 500;
  color: #93c5fd;
}

/* ── DB Sidebar layout ──────────────────────────────────────────── */
.tab-layout {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.tab-main {
  flex: 1;
  min-width: 0;
}

.db-sidebar {
  width: 272px;
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 80px);
}

.db-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.db-sidebar-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.db-sidebar-title svg { color: var(--accent); }

.db-sidebar-actions {
  display: flex;
  gap: 4px;
}

.db-sidebar-actions button {
  margin: 0;
  padding: 3px 8px;
  font-size: 0.78rem;
}

.db-sidebar-hint {
  font-size: 0.7rem;
  color: var(--text-muted);
  padding: 7px 14px;
  border-bottom: 1px solid var(--border);
  line-height: 1.4;
  flex-shrink: 0;
}

.db-tree {
  overflow-y: auto;
  flex: 1;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── DB Tree nodes ───────────────────────────────────────────────── */
.db-section {
  margin-bottom: 4px;
}

.db-section-label {
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 14px 4px;
}

.db-node {
  cursor: pointer;
  user-select: none;
}

.db-node-row {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  padding: 4px 10px 4px 8px;
  border-radius: 4px;
  margin: 0 4px;
  transition: background 0.1s;
}

.db-node-row:hover {
  background: var(--surface-2);
}

.db-chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.6rem;
  transition: transform 0.15s;
}

.db-node.open > .db-node-row .db-chevron {
  transform: rotate(90deg);
}

.db-node-indent {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  padding: 4px 10px 4px 26px;
  border-radius: 4px;
  margin: 0 4px;
  transition: background 0.1s;
  cursor: pointer;
}

.db-node-indent:hover {
  background: var(--surface-2);
}

.db-node-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.db-node-name {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.35;
}

.db-node-meta {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  color: var(--text-muted);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.db-id {
  color: var(--accent);
  font-size: 0.65rem;
}

.db-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid;
  display: inline-block;
  margin-top: 2px;
}

.db-badge-staff  { color: var(--info);    border-color: rgba(96,165,250,0.3);  background: rgba(96,165,250,0.07);  }
.db-badge-player { color: var(--success); border-color: rgba(52,211,153,0.3);  background: rgba(52,211,153,0.07);  }
.db-badge-admin  { color: var(--accent);  border-color: var(--accent-border);  background: var(--accent-dim);      }

.db-children {
  display: none;
}

.db-node.open > .db-children {
  display: block;
}

.db-loading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 20px 14px;
  text-align: center;
}

.db-error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--danger);
  padding: 12px 14px;
}

.db-empty {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 8px 14px;
  font-style: italic;
}

/* Node layout helpers */
.db-node-icon {
  flex-shrink: 0;
  font-size: 0.8rem;
  width: 18px;
  text-align: center;
  line-height: 1.4;
}

.db-node-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}

.db-node-meta {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
}

.db-fill-btn {
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.7rem;
  padding: 0 5px;
  height: 18px;
  line-height: 16px;
  border-radius: 3px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.1s;
}

.db-node-row:hover .db-fill-btn {
  opacity: 1;
}

.db-fill-btn:hover {
  background: var(--accent-dim);
}

.db-indent-1 { padding-left: 22px; }
.db-indent-2 { padding-left: 38px; }
.db-indent-0 { padding-left: 8px;  }

.db-leaf { cursor: default; }
.db-leaf .db-node-row { cursor: default; }

/* Fill flash animation */
@keyframes fillFlash {
  0%   { box-shadow: 0 0 0 3px rgba(245,158,11,0.5); background: rgba(245,158,11,0.12); }
  100% { box-shadow: none; background: var(--surface-2); }
}

.fill-flash {
  animation: fillFlash 0.7s ease-out forwards;
}

/* session bar actions */
.session-bar-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.session-bar-actions button { margin: 0; }

/* Clear button — sits right of Run, before the status span */
.clear-btn { margin-left: 6px; }

/* ── Scrollbar polish ───────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-hi);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 600px) {
  #app { padding: 0 16px 40px; }
  .field-grid { grid-template-columns: 1fr; }
  .field-grid .span-2 { grid-column: span 1; }
  .session-items { flex-direction: column; align-items: flex-start; gap: 8px; }
  .session-item { border-right: none; padding: 0; }
  #firebase-section, #totp-section { padding: 28px 22px; }
  .tab-btn { padding: 8px 12px; font-size: 0.8rem; }
  .modal-box { padding: 24px 20px 20px; }
}