/* ==========================================================================
   YesTechie Labs Style — components
   Panels, // Nav items, forms, buttons, telemetry rows, terminal, toast,
   plus the 0.3.0 element set (foundations through live action).

   Chapters 12–13 (charts and schematics) live in css/viz.css.
   Extracted from kiosk/style.css, voip-sandbox/index.html, the GITS
   tactical telemetry style guide, and the accepted 2026-09 proposal.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Navigation — left accent bar, `// Status` label pattern
   -------------------------------------------------------------------------- */

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  cursor: pointer;
  font-size: 10px;
  font-weight: bold;
  color: var(--text-muted);
  transition: all 0.15s;
  border-left: 3px solid transparent;
  font-family: inherit;
  background: none;
  border-top: none;
  border-right: none;
  border-bottom: none;
  width: 100%;
  text-align: left;
  text-transform: uppercase;
}

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

.nav-item.active {
  color: var(--text-dark);
  background: var(--accent-blue-trans);
  border-left-color: var(--accent-blue-ink);
}

/* --------------------------------------------------------------------------
   Panels — corner tick + header rule (solid or dashed)
   -------------------------------------------------------------------------- */

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--border-main);
  padding: 15px;
  position: relative;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.02);
  margin-bottom: 15px;
}

.panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 6px;
  height: 6px;
  background: var(--text-muted);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-main);
  padding-bottom: 8px;
  margin-bottom: 12px;
  font-weight: bold;
  font-size: 10px;
}

.panel-header::before {
  content: "|";
  color: var(--border-main);
  font-weight: bold;
  margin-right: 5px;
}

.panel-header.dashed,
.panel-header-dashed {
  border-bottom: 1px dashed var(--border-dashed);
}

.rule-dashed {
  border-top: 1px dashed var(--border-light);
  margin: 20px 0;
  padding-top: 15px;
}

/* --------------------------------------------------------------------------
   Dotted data rows + status dots
   -------------------------------------------------------------------------- */

.data-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  border-bottom: 1px dotted var(--border-main);
  padding-bottom: 4px;
  font-size: 11px;
}

.data-value {
  font-weight: bold;
  font-variant-numeric: tabular-nums; /* PAT-01 */
}

.data-value.case-sensitive { text-transform: none; } /* PAT-07 */

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
}

.dot-green { background: var(--accent-green); box-shadow: 0 0 4px var(--accent-green); }
.dot-red { background: var(--accent-red); box-shadow: 0 0 4px var(--accent-red); }
.dot-yellow { background: var(--accent-yellow); box-shadow: 0 0 4px var(--accent-yellow); }
.dot-blue { background: var(--accent-blue); box-shadow: 0 0 4px var(--accent-blue); }

.badge {
  padding: 2px 6px;
  border: 1px solid var(--border-main);
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  background: var(--surface-well);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border: 1px solid var(--border-main);
  font-size: 10px;
  background: var(--surface-well);
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
  color: var(--text-muted);
}

.chip.active {
  background: var(--accent-blue-trans);
  border-color: var(--accent-blue-ink);
  color: var(--text-dark);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}

.note {
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.muted {
  color: var(--text-muted);
  font-size: 9px;
}

/* --------------------------------------------------------------------------
   Segmented power banks
   -------------------------------------------------------------------------- */

.power-bank {
  display: flex;
  gap: 2px;
  height: 12px;
  margin-top: 5px;
  width: 100%;
}

.power-segment {
  flex: 1;
  border: 1px solid var(--border-light); /* PAT-08 · empty cells use border-light */
  background: var(--surface-well);
  transition: background 0.3s, border-color 0.3s;
}

.power-segment.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue-ink);
}

.power-segment.warning {
  background: var(--accent-yellow);
  border-color: var(--accent-yellow-ink);
}

.power-segment.critical {
  background: var(--accent-red);
  border-color: var(--accent-red-ink);
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: normal;
}

.form-group input,
.form-group select,
.form-group textarea,
.form-control {
  width: 100%;
  padding: 8px;
  background: var(--surface-input);
  border: 1px solid var(--border-light);
  color: var(--text-dark);
  font-family: inherit;
  font-size: 11px;
  text-transform: uppercase;
  outline: none;
  transition: all 0.3s ease;
}

.form-control {
  padding: 10px 12px;
  background: var(--surface-input-focus);
  border: 1px solid var(--accent-blue);
  font-size: 12px;
}

input[type="password"],
input[type="password"].form-control,
input.case-sensitive {
  text-transform: none;
  letter-spacing: 0;
}

input[type="password"].form-control {
  background: #e8ece9;
  border-color: #d1d8d3;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-control:focus {
  border-color: var(--text-dark);
  background: var(--surface-input-focus);
  box-shadow: inset 2px 0 0 var(--accent-blue);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.input-wrap {
  position: relative;
}

.input-wrap .reveal {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  font-size: 11px;
  color: var(--text-muted);
  background: none;
  border: none;
  padding: 2px;
  font-family: inherit;
  text-transform: uppercase;
}

.input-wrap .reveal:hover {
  color: var(--text-dark);
}

input[type="checkbox"] {
  width: 12px;
  height: 12px;
  accent-color: var(--accent-blue-ink);
  cursor: pointer;
}

.error-box {
  background: var(--accent-red-trans);
  border: 1px solid var(--accent-red);
  border-left: 4px solid var(--accent-red);
  color: var(--accent-red-ink);
  padding: 8px 10px;
  font-size: 10px;
  margin-bottom: 15px;
  display: none;
  text-align: center;
}

.error-box.show {
  display: block;
}

.err-banner {
  border: 1px solid var(--accent-red);
  background: var(--accent-red-trans);
  color: var(--accent-red-ink);
  padding: 8px 10px;
  margin-bottom: 12px;
  font-size: 10px;
}

/* --------------------------------------------------------------------------
   Buttons — login submit + bracketed tactical actions
   -------------------------------------------------------------------------- */

.btn-submit {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  background: var(--surface-submit);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover {
  background: var(--accent-blue);
  color: var(--ink-on-accent);
}

.btn-submit.processing {
  background: var(--text-dark);
  border-color: var(--text-dark);
  color: var(--ink-on-accent);
  pointer-events: none;
  animation: pulse 1s infinite alternate;
}

.btn-submit.success {
  background: var(--accent-green);
  border-color: var(--accent-green-ink);
  color: var(--ink-on-accent);
  pointer-events: none;
}

.btn-submit.failed {
  background: var(--accent-red);
  border-color: var(--accent-red-ink);
  color: var(--ink-on-accent);
  pointer-events: none;
}

/* PAT-06 · disabled submit */
.btn-submit:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  background-image: var(--hatch);
}

@keyframes pulse {
  0% { opacity: 1; }
  100% { opacity: 0.7; }
}

.btn {
  background: transparent;
  border: 1px solid var(--border-main);
  color: var(--text-dark);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 11px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn::before { content: "["; color: var(--border-main); }
.btn::after { content: "]"; color: var(--border-main); }

.btn:hover {
  background: var(--panel-bg-hover);
}

.btn-primary {
  border-color: var(--accent-blue-ink);
  color: var(--accent-blue-ink);
  background: var(--accent-blue-trans);
}

.btn-primary:hover {
  background: var(--accent-blue);
  color: var(--ink-on-accent);
}

.btn-primary::before,
.btn-primary::after {
  color: var(--accent-blue-ink);
}

/* PAT-02 · brackets stay visible on the filled hover */
.btn-primary:hover::before,
.btn-primary:hover::after {
  color: var(--ink-on-accent);
}

.btn-alert,
.btn-danger {
  border-color: var(--accent-red-ink);
  color: var(--accent-red-ink);
  background: var(--accent-red-trans);
}

.btn-alert:hover,
.btn-danger:hover {
  background: var(--accent-red);
  color: var(--ink-on-accent);
}

.btn-alert::before,
.btn-alert::after,
.btn-danger::before,
.btn-danger::after {
  color: var(--accent-red-ink);
}

.btn-alert:hover::before,
.btn-alert:hover::after,
.btn-danger:hover::before,
.btn-danger:hover::after {
  color: var(--ink-on-accent);
}

/* PAT-03 · keyboard focus. Mouse clicks do not show it. */
.btn:focus-visible,
.btn-submit:focus-visible,
.nav-item:focus-visible,
.chip:focus-visible,
.menu-btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* PAT-06 · disabled bracket button */
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  background-image: var(--hatch);
}

.btn-sm {
  padding: 4px 8px;
  font-size: 10px;
}

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 15px;
  flex-wrap: wrap;
}

a.btn {
  text-decoration: none;
  color: inherit;
  font-weight: inherit;
}

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 20px;
}

/* --------------------------------------------------------------------------
   Terminal stream
   -------------------------------------------------------------------------- */

.terminal-window {
  background: var(--surface-well);
  border: 1px solid var(--border-main);
  max-height: 500px;
  overflow-y: auto;
  padding: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 10px;
  text-transform: none;
  letter-spacing: 0;
}

.terminal-line {
  margin-bottom: 2px;
  white-space: pre-wrap;
  word-break: break-all;
  text-transform: none; /* PAT-07 */
}

.terminal-ts {
  color: var(--border-main);
  margin-right: 8px;
  font-variant-numeric: tabular-nums; /* PAT-01 */
}

.terminal-err { color: var(--accent-red-ink); }
.terminal-warn { color: var(--accent-yellow-ink); }
.terminal-ok { color: var(--accent-green-ink); }

.cursor-blink {
  display: inline-block;
  width: 6px;
  height: 10px;
  background: var(--text-muted);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --------------------------------------------------------------------------
   Toast + modal
   -------------------------------------------------------------------------- */

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px 15px;
  font-size: 10px;
  font-weight: bold;
  border: 1px solid var(--border-main);
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s;
  z-index: var(--z-toast);
  font-family: inherit;
  text-transform: uppercase;
  background: var(--panel-bg);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  background: var(--accent-green-trans);
  border-color: var(--accent-green-ink);
  color: var(--accent-green-ink);
}

.toast.error {
  background: var(--accent-red-trans);
  border-color: var(--accent-red-ink);
  color: var(--accent-red-ink);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-overlay); /* PAT-04 · above the mobile drawer (60) */
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: var(--bg-color);
  border: 1px solid var(--border-main);
  padding: 20px;
  width: 380px;
  text-align: center;
  position: relative;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.modal::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 6px;
  height: 6px;
  background: var(--text-muted);
}

.modal h3 {
  font-size: 12px;
  font-weight: bold;
  margin-bottom: 6px;
}

.modal p {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.modal .btn-row {
  justify-content: center;
}

.stats-panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px;
    padding: 10px;
  }

  .btn {
    min-height: 44px;
    padding: 10px 14px;
  }

  .btn-sm {
    min-height: 40px;
  }

  .chip {
    padding: 8px 12px;
    min-height: 40px;
  }

  .modal {
    width: calc(100% - 28px);
    max-width: 380px;
  }

  .toast {
    left: 12px;
    right: 12px;
    bottom: max(16px, env(safe-area-inset-bottom));
    text-align: center;
  }

  .data-row {
    gap: 8px;
    align-items: flex-start;
  }

  .data-value {
    text-align: right;
    max-width: 62%;
    word-break: break-word;
  }

  .toolbar .btn,
  .btn-row .btn {
    flex: 1;
    justify-content: center;
  }

  .terminal-window {
    max-height: 55vh;
  }
}

/* PAT-05 · kit blink and submit pulse */
@media (prefers-reduced-motion: reduce) {
  .cursor-blink,
  .btn-submit.processing { animation: none; }
}

/* ==========================================================================
   0.3.0 · accepted element set (2026-09-26, Vladimir)
   Foundations through live action. Folded from
   proposals/style-guide-elements-2026-09/css/proposal-components.css.
   Showcase-only .sc-* rules stay in style-guide/guide.css.
   ========================================================================== */

/* ==========================================================================
   00 · FOUNDATIONS
   ========================================================================== */

/* FND-02 · type specimen + tabular numerals */
.t-h1 { font-size: var(--fs-xl); font-weight: bold; letter-spacing: var(--track-wide); }
.t-h2 { font-size: var(--fs-lg); font-weight: bold; }
.t-h3 { font-size: var(--fs-base); font-weight: bold; }
.t-h4 { font-size: var(--fs-sm); font-weight: bold; color: var(--text-muted); }
.t-body { font-size: var(--fs-base); color: var(--text-muted); text-transform: none; letter-spacing: 0.2px; line-height: 1.6; }
.t-caption { font-size: var(--fs-xs); color: var(--border-main); letter-spacing: var(--track-wide); }
.eyebrow-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  letter-spacing: var(--track-wide);
  margin-bottom: var(--sp-1);
}
.num { font-variant-numeric: tabular-nums; }
.unit { color: var(--text-muted); font-weight: normal; margin-left: 2px; font-size: 0.85em; }

/* FND-03 · coordinate frame: rulers along top/left of a well */
.coord-frame {
  position: relative;
  border: 1px solid var(--border-light);
  background-color: var(--surface-well);
  background-image: var(--subgrid);
  background-size: var(--subgrid-size);
  padding: 18px 8px 8px 26px;
  min-height: 120px;
}
.coord-frame .ruler-x,
.coord-frame .ruler-y {
  position: absolute;
  display: flex;
  font-size: var(--fs-micro);
  color: var(--text-muted);
  pointer-events: none;
}
.coord-frame .ruler-x { top: 3px; left: 26px; right: 8px; justify-content: space-between; }
.coord-frame .ruler-y { top: 18px; bottom: 8px; left: 3px; flex-direction: column; justify-content: space-between; }

/* FND-04 · hatch */
.hatch { background-image: var(--hatch); }

/* FND-05 · semantic lamps (superset of .dot) */
.lamp {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 4px;
  background: var(--lamp-idle);
  vertical-align: middle;
  flex-shrink: 0;
}
.lamp.ok   { background: var(--accent-green);  box-shadow: 0 0 4px var(--accent-green); }
.lamp.warn { background: var(--accent-yellow); box-shadow: 0 0 4px var(--accent-yellow); }
.lamp.crit { background: var(--accent-red);    box-shadow: 0 0 4px var(--accent-red); }
.lamp.info { background: var(--accent-blue);   box-shadow: 0 0 4px var(--accent-blue); }
.lamp.unknown { background: transparent; border: 1px dashed var(--border-main); }
.lamp.live { animation: lamp-breathe 1.6s ease-in-out infinite; }
.lamp.sq { border-radius: 0; }
@keyframes lamp-breathe { 50% { opacity: 0.35; } }

.swatch-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: var(--sp-4); }
.swatch-cell { display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-xs); }
.swatch-cell .chip-color { height: 36px; border: 1px solid var(--border-main); }
.swatch-cell .hex { color: var(--text-muted); text-transform: none; }
.swatch-cell.forbidden .chip-color { position: relative; opacity: 0.55; }
.swatch-cell.forbidden .chip-color::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top right, transparent 48%, var(--accent-red) 48% 52%, transparent 52%);
}
.swatch-cell.forbidden .name { color: var(--accent-red-ink); text-decoration: line-through; }

/* FND-06 · keyboard focus for new elements (kit elements: PAT-03) */
.focusable:focus-visible,
.tab-btn:focus-visible,
.module-tab:focus-visible,
.segmented button:focus-visible,
.target-cell:focus-visible,
.momentary-pad:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* FND-07 · scrollbar (GITS mega guide; dropped in 0.2.x) */
.scroll-tactical::-webkit-scrollbar { width: 6px; height: 6px; }
.scroll-tactical::-webkit-scrollbar-track { background: var(--surface-well); border-left: 1px solid var(--border-light); }
.scroll-tactical::-webkit-scrollbar-thumb { background: var(--border-main); }
.scroll-tactical::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
.scroll-tactical { scrollbar-width: thin; scrollbar-color: var(--border-main) transparent; }

/* FND-08 · reduced motion for proposal animations (kit animations: PAT-05) */
@media (prefers-reduced-motion: reduce) {
  .lamp.live,
  .panel.is-live::before,
  .chain-link.flow,
  .btn.is-armed,
  .step.now::after,
  .scan-well .scan-beam,
  .btn.is-busy .busy-glyph,
  .live-banner .lamp { animation: none !important; }
}

/* FND-09 · selection */
/* FND-09 · selection. .sel-tactical kept so older demo pages still match. */
::selection { background: var(--accent-blue-trans); color: var(--text-dark); }
.sel-tactical ::selection { background: var(--accent-blue-trans); color: var(--text-dark); }

/* ==========================================================================
   01 · LOGIN
   ========================================================================== */

/* LGN-01 · preflight strip under subtitle */
.preflight {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin: -14px 0 22px;
  font-size: var(--fs-micro);
  letter-spacing: var(--track-wide);
}
.preflight-item {
  border: 1px dotted var(--border-main);
  padding: 3px 5px;
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}
.preflight-item .state { font-weight: bold; }
.preflight-item.ok .state { color: var(--accent-green-ink); }
.preflight-item.pending .state { color: var(--accent-yellow-ink); }
.preflight-item.fail { border-color: var(--accent-red-ink); }
.preflight-item.fail .state { color: var(--accent-red-ink); }

/* LGN-02 · host fingerprint footer */
.host-print {
  margin-top: 22px;
  border-top: 1px dashed var(--border-dashed);
  padding-top: 10px;
  font-size: var(--fs-micro);
  color: var(--text-muted);
  letter-spacing: var(--track-wide);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
}
.host-print dt { color: var(--border-main); }
.host-print dd { text-align: right; text-transform: none; }

/* LGN-03 · caps lock / inline field warning */
.field-flag {
  display: none;
  margin-top: 4px;
  font-size: var(--fs-xs);
  color: var(--accent-yellow-ink);
}
.field-flag::before { content: "// "; }
.field-flag.show { display: block; }

/* LGN-04 · attempt meter + lockout */
.attempt-meter { display: flex; gap: 2px; margin-top: 6px; }
.attempt-meter i { flex: 1; height: 4px; border: 1px solid var(--border-light); }
.attempt-meter i.used { background: var(--accent-red); border-color: var(--accent-red-ink); }
.lockout {
  border: 1px solid var(--accent-red);
  border-left: 4px solid var(--accent-red);
  background: var(--accent-red-trans);
  color: var(--accent-red-ink);
  padding: 8px 10px;
  font-size: var(--fs-sm);
  margin-bottom: 15px;
  display: flex;
  justify-content: space-between;
}
.lockout .num { font-weight: bold; margin-left: 10px; }

/* LGN-05 · session notice (re-auth) */
.session-notice {
  border: 1px dashed var(--accent-blue);
  background: var(--accent-blue-trans);
  color: var(--accent-blue-ink);
  padding: 8px 10px;
  font-size: var(--fs-sm);
  margin-bottom: 15px;
}
.session-notice::before { content: "// "; }

/* LGN-06 / FRM-06 · segmented code input */
.code-input { display: flex; gap: 4px; align-items: center; }
.code-input input {
  width: 30px;
  height: 36px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
  border: 1px solid var(--border-light);
  background: var(--surface-input);
  color: var(--text-dark);
  outline: none;
  padding: 0;
}
.code-input input:focus { border-color: var(--text-dark); background: var(--surface-input-focus); box-shadow: inset 0 -2px 0 var(--accent-blue); }
.code-input input.filled { border-color: var(--accent-blue-ink); }
.code-input .sep { color: var(--border-main); padding: 0 2px; }

/* LGN-07 · four-corner registration ticks (optional variant) */
.corners-4 { position: relative; }
.corners-4 > .tick {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--text-muted);
  border-style: solid;
  border-width: 0;
}
.corners-4 > .tick.tr { top: -1px; right: -1px; border-top-width: 2px; border-right-width: 2px; }
.corners-4 > .tick.bl { bottom: -1px; left: -1px; border-bottom-width: 2px; border-left-width: 2px; }
.corners-4 > .tick.br { bottom: -1px; right: -1px; border-bottom-width: 2px; border-right-width: 2px; }

/* LGN-08 · deterministic progress rail inside .btn-submit */
.btn-submit .progress-rail {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--accent-blue);
  transition: width var(--t-slow) linear;
}
.btn-submit.processing .progress-rail { background: var(--ink-on-accent); }
.btn-submit.is-locked { opacity: 0.5; background-image: var(--hatch); cursor: not-allowed; pointer-events: none; }

/* ==========================================================================
   02 · SHELL / NAV
   ========================================================================== */

/* NAV-01 · nav group label */
.nav-group {
  padding: 14px 15px 4px;
  font-size: var(--fs-micro);
  color: var(--border-main);
  letter-spacing: var(--track-wide);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-group::after { content: ""; flex: 1; border-top: 1px dashed var(--border-dashed); }

/* NAV-02 / NAV-03 · nav trailing meta (count, lamp, hotkey) */
.nav-meta { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-weight: normal; }
.nav-count { font-size: var(--fs-micro); color: var(--text-muted); }
.nav-count::before { content: "["; color: var(--border-main); }
.nav-count::after { content: "]"; color: var(--border-main); }
.nav-count.crit { color: var(--accent-red-ink); }
.nav-count.warn { color: var(--accent-yellow-ink); }
.nav-key {
  font-size: var(--fs-micro);
  color: var(--border-main);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.nav-item:hover .nav-key,
.nav-item:focus-visible .nav-key { opacity: 1; }

/* NAV-04 · sidebar identity strip */
.node-strip {
  padding: 8px 15px;
  border-bottom: 1px dashed var(--border-dashed);
  font-size: var(--fs-micro);
  color: var(--text-muted);
  letter-spacing: var(--track-wide);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 8px;
}
.node-strip b { color: var(--text-dark); text-align: right; font-variant-numeric: tabular-nums; }

/* NAV-05 · sidebar clock */
.sidebar-clock { font-size: var(--fs-sm); font-weight: bold; letter-spacing: var(--track-wide); font-variant-numeric: tabular-nums; }
.sidebar-clock small { font-size: var(--fs-micro); color: var(--text-muted); font-weight: normal; margin-left: 4px; }

/* NAV-06 · workspace header bar — light, inside .main (NOT a dark top header) */
.ws-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0 0 8px;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--border-main);
}
.crumbs { font-size: var(--fs-lg); font-weight: bold; display: flex; gap: 6px; align-items: center; }
.crumbs .sep { color: var(--border-main); font-weight: normal; }
.crumbs .up { color: var(--text-muted); font-weight: normal; }
.ws-bar .ws-meta { margin-left: auto; display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; font-size: var(--fs-xs); color: var(--text-muted); }
.sync-age { white-space: nowrap; }
.sync-age.stale { color: var(--accent-yellow-ink); }
.sync-age.dead { color: var(--accent-red-ink); }

/* NAV-07 · collapsed rail */
.sidebar.rail { width: var(--rail-width); }
.sidebar.rail .logo h1,
.sidebar.rail .logo p,
.sidebar.rail .nav-label,
.sidebar.rail .nav-meta,
.sidebar.rail .nav-group,
.sidebar.rail .node-strip,
.sidebar.rail .sidebar-footer .app-ver,
.sidebar.rail .sidebar-footer a,
.sidebar.rail .sidebar-clock { display: none; }
.sidebar.rail .nav-code { display: inline; }
.sidebar.rail .nav-item { justify-content: center; padding: 10px 0; }
.sidebar.rail .nav-item:not(:has(.nav-code)) { display: none; }
.sidebar.rail .logo::before { content: "YT"; font-weight: bold; font-size: var(--fs-lg); display: block; text-align: center; }
.nav-code { display: none; font-weight: bold; }

/* NAV-08 · command palette */
.palette-overlay {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  z-index: var(--z-palette);
}
.palette-overlay.show { display: flex; }
.palette {
  width: min(520px, calc(100% - 28px));
  background: var(--bg-color);
  border: 1px solid var(--border-main);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.05);
  position: relative;
}
.palette::before { content: ""; position: absolute; top: -1px; left: -1px; width: 6px; height: 6px; background: var(--text-muted); }
.palette-input {
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-main);
  padding: 10px 12px;
}
.palette-input::before { content: ">"; color: var(--accent-blue-ink); font-weight: bold; }
.palette-input input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: var(--fs-md);
  text-transform: uppercase;
  outline: none;
  color: var(--text-dark);
}
.palette-list { max-height: 280px; overflow-y: auto; }
.palette-item {
  display: flex;
  justify-content: space-between;
  padding: 7px 12px;
  font-size: var(--fs-sm);
  border-left: 3px solid transparent;
  cursor: pointer;
}
.palette-item .grp { color: var(--text-muted); font-size: var(--fs-micro); }
.palette-item.active { background: var(--accent-blue-trans); border-left-color: var(--accent-blue-ink); }
.palette-foot {
  border-top: 1px dashed var(--border-dashed);
  padding: 6px 12px;
  font-size: var(--fs-micro);
  color: var(--text-muted);
  display: flex;
  gap: 12px;
}

/* NAV-09 · module slot bar (multi-module) */
.module-bar { display: flex; gap: 0; border: 1px solid var(--border-main); margin-bottom: 15px; overflow-x: auto; }
.module-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-family: inherit;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-right: 1px solid var(--border-light);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.module-tab:hover { color: var(--text-dark); background: var(--panel-bg-hover); }
.module-tab.active { color: var(--text-dark); background: var(--accent-blue-trans); border-bottom-color: var(--accent-blue-ink); font-weight: bold; }
.module-tab .ver { font-size: var(--fs-micro); color: var(--border-main); font-weight: normal; }
.module-tab.add { color: var(--border-main); border-right: none; }

/* Wide main modifier */
.main.main-wide { max-width: var(--main-wide); }

/* ==========================================================================
   03 · PANELS
   ========================================================================== */

/* PNL-01 · panel header meta + inline actions */
.ph-title { display: flex; align-items: center; gap: 6px; margin-right: auto; }
.ph-meta { display: flex; align-items: center; gap: 8px; font-size: var(--fs-micro); color: var(--text-muted); font-weight: normal; letter-spacing: var(--track-wide); }
.ph-meta .btn { padding: 1px 6px; font-size: var(--fs-micro); }

/* PNL-02 · state variants via corner tick colour */
.panel.is-live::before { background: var(--accent-green); animation: lamp-breathe 1.6s ease-in-out infinite; }
.panel.is-warn::before { background: var(--accent-yellow); }
.panel.is-crit::before { background: var(--accent-red); }
.panel.is-crit { border-color: var(--accent-red-ink); }
.panel.is-crit .panel-header { border-bottom-color: var(--accent-red-ink); color: var(--accent-red-ink); }
.panel.is-quiet { border-style: dashed; border-color: var(--border-dashed); background: transparent; box-shadow: none; }
.panel.is-quiet::before { display: none; }
.panel.is-selected { border-color: var(--accent-blue-ink); box-shadow: 2px 2px 0 var(--accent-blue-trans); }
.panel.is-selected::before { background: var(--accent-blue); }

/* PNL-03 · crop marks on all corners */
.panel.crop { border-color: transparent; background: var(--panel-bg); box-shadow: none; }
.panel.crop::before { display: none; }
.panel.crop::after {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background:
    linear-gradient(var(--text-muted), var(--text-muted)) top left / 10px 1px,
    linear-gradient(var(--text-muted), var(--text-muted)) top left / 1px 10px,
    linear-gradient(var(--text-muted), var(--text-muted)) top right / 10px 1px,
    linear-gradient(var(--text-muted), var(--text-muted)) top right / 1px 10px,
    linear-gradient(var(--text-muted), var(--text-muted)) bottom left / 10px 1px,
    linear-gradient(var(--text-muted), var(--text-muted)) bottom left / 1px 10px,
    linear-gradient(var(--text-muted), var(--text-muted)) bottom right / 10px 1px,
    linear-gradient(var(--text-muted), var(--text-muted)) bottom right / 1px 10px;
  background-repeat: no-repeat;
  outline: 1px dotted var(--border-light);
}

/* PNL-04 · stat readout tile */
.readout-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 15px; }
.readout {
  border: 1px solid var(--border-main);
  background: var(--panel-bg);
  padding: 10px 12px 8px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.readout::before { content: ""; position: absolute; top: -1px; left: -1px; width: 4px; height: 4px; background: var(--text-muted); }
.readout .r-label { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); display: flex; justify-content: space-between; }
.readout .r-value { font-size: var(--fs-xl); font-weight: bold; letter-spacing: 1px; font-variant-numeric: tabular-nums; line-height: 1.2; }
.readout .r-value .unit { font-size: var(--fs-sm); }
.readout .r-foot { display: flex; justify-content: space-between; align-items: flex-end; font-size: var(--fs-micro); color: var(--text-muted); }
.readout.ok .r-value { color: var(--text-dark); }
.readout.warn { border-left: 3px solid var(--accent-yellow); }
.readout.crit { border-left: 3px solid var(--accent-red); }
.readout.crit .r-value { color: var(--accent-red-ink); }
.delta.up::before { content: "▲ "; }
.delta.down::before { content: "▼ "; }
.delta.good { color: var(--accent-green-ink); }
.delta.bad { color: var(--accent-red-ink); }

/* PNL-05 · panel footer strip */
.panel-foot {
  margin: 12px -15px -15px;
  padding: 5px 15px;
  border-top: 1px dashed var(--border-dashed);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: var(--fs-micro);
  color: var(--text-muted);
  letter-spacing: var(--track-wide);
  background: var(--surface-well);
}
.panel-foot b { color: var(--text-dark); font-weight: normal; text-transform: none; }

/* PNL-06 · collapsible (accordion) */
.fold { border: 1px solid var(--border-light); margin-bottom: 8px; }
.fold > summary {
  list-style: none;
  padding: 7px 8px;
  background: var(--surface-input);
  cursor: pointer;
  font-weight: bold;
  font-size: var(--fs-sm);
  display: flex;
  gap: 8px;
  align-items: center;
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::before { content: "[+]"; color: var(--accent-blue-ink); }
.fold[open] > summary::before { content: "[-]"; }
.fold[open] > summary { border-bottom: 1px solid var(--border-light); }
.fold > summary .fold-meta { margin-left: auto; font-weight: normal; color: var(--text-muted); font-size: var(--fs-micro); }
.fold > .fold-body { padding: 10px; }

/* PNL-07 · tabs */
.tabs { display: flex; gap: 15px; border-bottom: 1px solid var(--border-main); margin-bottom: 12px; padding-bottom: 5px; }
.tab-btn {
  background: none;
  border: none;
  font-family: inherit;
  text-transform: uppercase;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  letter-spacing: var(--track-tight);
}
.tab-btn:hover { color: var(--text-dark); }
.tab-btn.active { color: var(--accent-blue-ink); font-weight: bold; }
.tab-btn.active::before { content: "[ "; }
.tab-btn.active::after { content: " ]"; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* PNL-08 · empty / loading / error bodies */
.state-well {
  border: 1px dashed var(--border-main);
  min-height: 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: var(--fs-sm);
  position: relative;
  overflow: hidden;
  padding: 10px;
  text-align: center;
}
.state-well.empty { background-image: var(--hatch); }
.state-well.error { border-color: var(--accent-red-ink); color: var(--accent-red-ink); background: var(--accent-red-trans); }
.state-well small { font-size: var(--fs-micro); color: var(--text-muted); text-transform: none; letter-spacing: 0.2px; }
.scan-well { background: var(--surface-input); }
.scan-well .scan-beam {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: scan-sweep 2s ease-in-out infinite alternate;
}
@keyframes scan-sweep { from { left: 0; } to { left: calc(100% - 2px); } }
.skeleton-row { height: 11px; margin: 8px 0; border-bottom: 1px dotted var(--border-main); position: relative; }
.skeleton-row::before,
.skeleton-row::after { content: ""; position: absolute; top: 0; height: 8px; background: var(--border-light); opacity: 0.7; }
.skeleton-row::before { left: 0; width: 34%; }
.skeleton-row::after { right: 0; width: 18%; }

/* ==========================================================================
   04 · DATA ROWS & TELEMETRY
   ========================================================================== */

/* DAT-01 · data-row extensions */
.data-row .key-sub { display: block; font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); }
.data-row.is-warn .data-value { color: var(--accent-yellow-ink); }
.data-row.is-crit .data-value { color: var(--accent-red-ink); }
.data-row.is-muted { color: var(--text-muted); }
.data-row .micro-bar { display: inline-block; width: 60px; height: 5px; border: 1px solid var(--border-main); margin-right: 6px; vertical-align: middle; position: relative; }
.data-row .micro-bar > i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent-blue); }

/* DAT-02 · dense data table */
.table-wrap { overflow: auto; border: 1px solid var(--border-light); max-height: 260px; }
.data-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.data-table th,
.data-table td { padding: 5px 8px; border-bottom: 1px solid var(--border-light); text-align: left; white-space: nowrap; }
.data-table th {
  position: sticky;
  top: 0;
  background: var(--panel-bg-solid);
  color: var(--text-muted);
  font-weight: normal;
  font-size: var(--fs-micro);
  letter-spacing: var(--track-wide);
  border-bottom: 1px solid var(--border-main);
  cursor: pointer;
  user-select: none;
}
.data-table th.sorted-asc::after { content: " ▲"; color: var(--accent-blue-ink); }
.data-table th.sorted-desc::after { content: " ▼"; color: var(--accent-blue-ink); }
.data-table td.n,
.data-table th.n { text-align: right; font-variant-numeric: tabular-nums; }
.data-table tbody tr:hover td { background: var(--surface-well); }
.data-table tbody tr.is-crit td:first-child { box-shadow: inset 3px 0 0 var(--accent-red); }
.data-table tbody tr.is-warn td:first-child { box-shadow: inset 3px 0 0 var(--accent-yellow); }
.data-table tbody tr.is-selected td { background: var(--accent-blue-trans); }
.data-table td.mono-case { text-transform: none; }

/* DAT-03 · sparkline */
.spark { display: inline-block; width: 80px; height: 18px; vertical-align: middle; }
.spark polyline { fill: none; stroke: var(--accent-blue); stroke-width: 1; vector-effect: non-scaling-stroke; }
.spark polygon { fill: var(--accent-blue-trans); stroke: none; }
.spark.ok polyline { stroke: var(--accent-green); }
.spark.ok polygon { fill: var(--accent-green-trans); }
.spark.crit polyline { stroke: var(--accent-red); }
.spark.crit polygon { fill: var(--accent-red-trans); }
.spark .last { fill: var(--text-dark); }
.spark-lg { width: 100%; height: 70px; display: block; }

/* DAT-04 · heartbeat strip (temporal power-bank) */
.beat-strip { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 1px; height: 14px; }
.beat-strip i { background: var(--accent-green); opacity: 0.75; }
.beat-strip i.late { background: var(--accent-yellow); opacity: 1; }
.beat-strip i.miss { background: var(--accent-red); opacity: 1; }
.beat-strip i.none { background: transparent; background-image: var(--hatch); border: 1px solid var(--border-light); }
.beat-axis { display: flex; justify-content: space-between; font-size: var(--fs-micro); color: var(--text-muted); margin-top: 2px; }

/* DAT-05 · event histogram */
.histo { display: flex; align-items: flex-end; gap: 2px; height: 70px; border-bottom: 1px solid var(--border-main); background-image: var(--subgrid); background-size: var(--subgrid-size); padding: 0 2px; }
.histo .col { flex: 1; display: flex; flex-direction: column-reverse; min-width: 3px; cursor: crosshair; }
.histo .col:hover { outline: 1px dotted var(--text-muted); }
.histo .col i { display: block; }
.histo .col .info { background: var(--accent-blue); opacity: 0.55; }
.histo .col .warn { background: var(--accent-yellow); }
.histo .col .crit { background: var(--accent-red); }
.histo-axis { display: flex; justify-content: space-between; font-size: var(--fs-micro); color: var(--text-muted); margin-top: 2px; }
.legend { display: flex; gap: 12px; font-size: var(--fs-micro); color: var(--text-muted); margin-top: 6px; }
.legend span { display: inline-flex; align-items: center; gap: 4px; }
.legend i { width: 8px; height: 8px; display: inline-block; }

/* DAT-06 · event feed */
.feed { border: 1px solid var(--border-light); max-height: 260px; overflow-y: auto; }
.feed-row {
  display: grid;
  grid-template-columns: 62px 44px 70px 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 5px 8px 5px 10px;
  border-bottom: 1px dotted var(--border-main);
  font-size: var(--fs-sm);
  position: relative;
}
.feed-row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--border-light); }
.feed-row.crit::before { background: var(--accent-red); }
.feed-row.warn::before { background: var(--accent-yellow); }
.feed-row.info::before { background: var(--accent-blue); }
.feed-row .ts { color: var(--border-main); font-variant-numeric: tabular-nums; }
.feed-row .sev { font-weight: bold; font-size: var(--fs-micro); }
.feed-row.crit .sev { color: var(--accent-red-ink); }
.feed-row.warn .sev { color: var(--accent-yellow-ink); }
.feed-row.info .sev { color: var(--accent-blue-ink); }
.feed-row .src { color: var(--text-muted); font-size: var(--fs-micro); }
.feed-row .msg { text-transform: none; letter-spacing: 0.2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-row.acked { opacity: 0.5; }
.feed-row.acked .msg { text-decoration: line-through; text-decoration-color: var(--border-main); }

/* DAT-07 · finding card */
.finding {
  border: 1px solid var(--border-main);
  border-left: 4px solid var(--border-main);
  background: var(--panel-bg);
  padding: 10px 12px;
  margin-bottom: 8px;
}
.finding.crit { border-left-color: var(--accent-red-ink); }
.finding.warn { border-left-color: var(--accent-yellow-ink); }
.finding.info { border-left-color: var(--accent-blue-ink); }
.finding-head { display: flex; justify-content: space-between; gap: 8px; align-items: center; margin-bottom: 4px; }
.finding-title { font-weight: bold; font-size: var(--fs-base); }
.finding-body { font-size: var(--fs-sm); color: var(--text-muted); text-transform: none; letter-spacing: 0.2px; line-height: 1.5; }
.finding-fix { margin-top: 6px; font-size: var(--fs-sm); border-top: 1px dotted var(--border-main); padding-top: 6px; }
.finding-fix::before { content: "FIX // "; color: var(--accent-blue-ink); font-weight: bold; }
.tag {
  padding: 1px 6px;
  border: 1px solid var(--border-main);
  font-size: var(--fs-micro);
  color: var(--text-dark);
  letter-spacing: var(--track-wide);
  white-space: nowrap;
}
.tag.solid { background: var(--text-dark); color: var(--bg-color); border-color: var(--text-dark); }
.tag.crit { color: var(--accent-red-ink); border-color: var(--accent-red-ink); }
.tag.warn { color: var(--accent-yellow-ink); border-color: var(--accent-yellow-ink); }
.tag.info { color: var(--accent-blue-ink); border-color: var(--accent-blue-ink); }
.tag.ok { color: var(--accent-green-ink); border-color: var(--accent-green-ink); }

/* DAT-08 · link chain (pipeline / signal path) */
.chain { display: flex; align-items: stretch; flex-wrap: wrap; gap: 0; margin: 4px 0 10px; }
.chain-node {
  border: 1px solid var(--border-main);
  background: var(--surface-input);
  padding: 6px 10px;
  min-width: 90px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.chain-node .cn-label { font-size: var(--fs-sm); font-weight: bold; display: flex; align-items: center; }
.chain-node .cn-sub { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); }
.chain-node.ok { border-color: var(--accent-green-ink); }
.chain-node.warn { border-color: var(--accent-yellow-ink); background: var(--accent-yellow-trans); }
.chain-node.crit { border-color: var(--accent-red-ink); background: var(--accent-red-trans); color: var(--accent-red-ink); }
.chain-node.active { border-color: var(--accent-blue-ink); background: var(--accent-blue-trans); }
.chain-link { flex: 0 0 26px; align-self: center; height: 0; border-top: 1px solid var(--border-main); position: relative; }
.chain-link::after { content: ""; position: absolute; right: -1px; top: -4px; border: 4px solid transparent; border-left-color: var(--border-main); border-right-width: 0; }
.chain-link.ok { border-top-color: var(--accent-green-ink); }
.chain-link.ok::after { border-left-color: var(--accent-green-ink); }
.chain-link.down { border-top-style: dashed; border-top-color: var(--accent-red-ink); }
.chain-link.down::after { border-left-color: var(--accent-red-ink); }
.chain-link.flow { border-top: none; height: 1px; background: repeating-linear-gradient(90deg, var(--accent-blue) 0 4px, transparent 4px 8px); background-size: 8px 1px; animation: chain-flow 0.6s linear infinite; }
.chain-link.flow::after { border-left-color: var(--accent-blue-ink); }
@keyframes chain-flow { to { background-position: 8px 0; } }

/* DAT-09 · subsystem matrix */
.matrix { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 1px; background: var(--border-light); border: 1px solid var(--border-light); }
.matrix-cell { background: var(--panel-bg-solid); padding: 7px 8px; display: flex; flex-direction: column; gap: 2px; }
.matrix-cell .mc-name { font-size: var(--fs-sm); font-weight: bold; display: flex; align-items: center; }
.matrix-cell .mc-sub { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); }
.matrix-cell.crit { background: linear-gradient(var(--accent-red-trans), var(--accent-red-trans)), var(--panel-bg-solid); color: var(--accent-red-ink); }
.matrix-cell.warn { background: linear-gradient(var(--accent-yellow-trans), var(--accent-yellow-trans)), var(--panel-bg-solid); }
.matrix-cell.off { background-image: var(--hatch); color: var(--text-muted); }

/* DAT-10 · raw / hex stream */
.hex-block {
  background: var(--surface-well);
  border: 1px solid var(--border-light);
  padding: 8px 10px;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--text-muted);
  text-transform: none;
  font-variant-numeric: tabular-nums;
  white-space: pre;
  overflow-x: auto;
}
.hex-block .off { color: var(--border-main); }
.hex-block .hl { color: var(--accent-blue-ink); font-weight: bold; }

/* DAT-11 · threshold bar */
.threshold { position: relative; height: 8px; border: 1px solid var(--border-main); background: var(--surface-well); margin: 14px 0 12px; }
.threshold .fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent-blue); }
.threshold.warn .fill { background: var(--accent-yellow); }
.threshold.crit .fill { background: var(--accent-red); }
.threshold .mark { position: absolute; top: -5px; bottom: -5px; width: 1px; background: var(--text-dark); }
.threshold .mark::after { content: attr(data-label); position: absolute; top: -12px; left: -8px; font-size: var(--fs-micro); color: var(--text-muted); }
.threshold .mark.crit { background: var(--accent-red); }
.threshold .mark.warn { background: var(--accent-yellow); }

/* DAT-12 · two-column key/value grid */
.kv-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 20px; }
.kv-grid .data-row { margin-bottom: 4px; }

/* DAT-13 · copyable value */
.copyable { cursor: copy; text-transform: none; border-bottom: 1px dashed transparent; }
.copyable:hover { border-bottom-color: var(--accent-blue-ink); color: var(--accent-blue-ink); }
.copyable.copied::after { content: " [COPIED]"; color: var(--accent-green-ink); font-size: var(--fs-micro); }

/* ==========================================================================
   05 · BUTTONS
   ========================================================================== */

/* BTN-01 · disabled / busy / done / failed */
.btn.is-disabled { opacity: 0.45; cursor: not-allowed; background-image: var(--hatch); pointer-events: none; }
.btn.is-busy { pointer-events: none; border-style: dashed; }
.btn.is-busy .busy-glyph { display: inline-block; width: 1ch; text-align: center; }
.btn.is-done { border-color: var(--accent-green-ink); color: var(--accent-green-ink); background: var(--accent-green-trans); }
.btn.is-done::before,
.btn.is-done::after { color: var(--accent-green-ink); }
.btn.is-failed { border-color: var(--accent-red-ink); color: var(--accent-red-ink); background: var(--accent-red-trans); }

/* Bracket contrast fix for filled hover (kit leaves brackets accent-coloured on accent fill) */
.btn-primary.fix-brackets:hover::before,
.btn-primary.fix-brackets:hover::after,
.btn-alert.fix-brackets:hover::before,
.btn-alert.fix-brackets:hover::after { color: var(--ink-on-accent); }

/* BTN-02 · ghost */
.btn.btn-ghost { border-color: transparent; background: transparent; color: var(--text-muted); }
.btn.btn-ghost:hover { color: var(--text-dark); border-color: var(--border-light); }

/* BTN-02b · warn variant (needs --accent-yellow-trans) */
.btn.btn-warn { border-color: var(--accent-yellow-ink); color: var(--accent-yellow-ink); background: var(--accent-yellow-trans); }
.btn.btn-warn::before,
.btn.btn-warn::after { color: var(--accent-yellow-ink); }
.btn.btn-warn:hover { background: var(--accent-yellow); color: var(--ink-on-accent); }

/* BTN-03 · hold-to-confirm */
.btn.btn-hold { position: relative; overflow: hidden; user-select: none; -webkit-user-select: none; touch-action: none; }
.btn.btn-hold .hold-fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--accent-red); opacity: 0.35; pointer-events: none; }
.btn.btn-hold .hold-label { position: relative; }
.btn.btn-hold.holding { color: var(--text-dark); }

/* BTN-04 · armed two-step */
.btn.is-armed {
  border-color: var(--accent-red-ink);
  color: var(--ink-on-accent);
  background: var(--accent-red);
  animation: armed-blink 0.5s step-end infinite alternate;
}
.btn.is-armed::before,
.btn.is-armed::after { color: var(--ink-on-accent); }
@keyframes armed-blink { 50% { background: var(--accent-red-trans); color: var(--accent-red-ink); } }

/* BTN-05 · segmented control */
.segmented { display: inline-flex; border: 1px solid var(--border-main); }
.segmented::before { content: "["; color: var(--border-main); padding: 4px 0 0 6px; }
.segmented::after { content: "]"; color: var(--border-main); padding: 4px 6px 0 0; }
.segmented button {
  font-family: inherit;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  background: transparent;
  border: none;
  padding: 5px 9px;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.segmented button + button { border-left: 1px dotted var(--border-main); }
.segmented button.active { color: var(--text-dark); background: var(--accent-blue-trans); font-weight: bold; box-shadow: inset 0 -2px 0 var(--accent-blue); }

/* BTN-06 · key hint */
kbd,
.kbd {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  border: 1px solid var(--border-main);
  border-bottom-width: 2px;
  padding: 0 4px;
  color: var(--text-muted);
  background: var(--surface-input-focus);
  text-transform: uppercase;
  line-height: 1.5;
}

/* BTN-07 · bracket toggle switch */
.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: var(--fs-sm); }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track {
  display: inline-flex;
  border: 1px solid var(--border-main);
  font-size: var(--fs-micro);
  font-weight: bold;
}
.switch .track span { padding: 1px 5px; color: var(--border-main); }
.switch .track .on { border-left: 1px solid var(--border-main); }
.switch input:not(:checked) + .track .off { background: var(--text-muted); color: var(--bg-color); }
.switch input:checked + .track { border-color: var(--accent-green-ink); }
.switch input:checked + .track .on { background: var(--accent-green); color: var(--ink-on-accent); border-left-color: var(--accent-green-ink); }
.switch input:focus-visible + .track { outline: var(--focus-ring); outline-offset: var(--focus-offset); }

/* ==========================================================================
   06 · FORMS
   ========================================================================== */

/* FRM-01 · square check + radio (GITS mega guide) */
.check,
.radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: var(--fs-sm); margin-right: 14px; }
.check input,
.radio input { position: absolute; opacity: 0; width: 0; height: 0; }
.form-group label.check,
.form-group label.radio { display: inline-flex; font-size: var(--fs-sm); color: var(--text-dark); margin-bottom: 6px; }
.check .box,
.radio .box { display: inline-block; width: 12px; height: 12px; border: 1px solid var(--border-main); position: relative; background: var(--surface-input); flex-shrink: 0; }
.radio .box { border-radius: 50%; }
.check input:checked + .box::after { content: ""; position: absolute; inset: 2px; background: var(--accent-blue); }
.radio input:checked + .box::after { content: ""; position: absolute; inset: 2px; background: var(--accent-blue); border-radius: 50%; }
.check input:indeterminate + .box::after { content: ""; position: absolute; left: 2px; right: 2px; top: 4px; height: 2px; background: var(--accent-blue); }
.check input:focus-visible + .box,
.radio input:focus-visible + .box { outline: var(--focus-ring); outline-offset: var(--focus-offset); }
.check input:disabled + .box { background-image: var(--hatch); }

/* FRM-02 · range with readout */
.range-row { display: flex; justify-content: space-between; font-size: var(--fs-xs); color: var(--text-muted); }
.range-row b { color: var(--text-dark); font-variant-numeric: tabular-nums; }
.range-tactical { -webkit-appearance: none; appearance: none; width: 100%; background: transparent; margin: 8px 0 4px; }
.range-tactical::-webkit-slider-runnable-track { height: 4px; background: var(--border-light); border: 1px solid var(--border-main); }
.range-tactical::-webkit-slider-thumb { -webkit-appearance: none; height: 16px; width: 8px; background: var(--accent-blue); margin-top: -7px; border: none; cursor: pointer; }
.range-tactical::-moz-range-track { height: 4px; background: var(--border-light); border: 1px solid var(--border-main); }
.range-tactical::-moz-range-thumb { height: 16px; width: 8px; background: var(--accent-blue); border: none; border-radius: 0; }
.range-ticks { display: flex; justify-content: space-between; font-size: var(--fs-micro); color: var(--border-main); }

/* FRM-03 · field states */
.form-hint { font-size: var(--fs-xs); color: var(--text-muted); margin-top: 3px; text-transform: none; letter-spacing: 0.2px; }
.form-group.is-invalid input,
.form-group.is-invalid select { border-color: var(--accent-red-ink); box-shadow: inset 2px 0 0 var(--accent-red); background: var(--accent-red-trans); }
.form-group.is-invalid .form-hint { color: var(--accent-red-ink); text-transform: uppercase; letter-spacing: var(--track-tight); }
.form-group.is-invalid .form-hint::before { content: "// "; }
.form-group.is-valid input { border-color: var(--accent-green-ink); }
.form-group.is-valid label::after { content: " ✓"; color: var(--accent-green-ink); }
.form-group label .req { color: var(--accent-red-ink); margin-left: 2px; }

/* FRM-04 · adornments */
.adorn { display: flex; align-items: stretch; }
.adorn .pre,
.adorn .post {
  display: flex;
  align-items: center;
  padding: 0 8px;
  border: 1px solid var(--border-light);
  background: var(--surface-well);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  text-transform: none;
  white-space: nowrap;
}
.adorn .pre { border-right: none; }
.adorn .post { border-left: none; }
.adorn input { flex: 1; min-width: 0; }

/* FRM-05 · write-only secret field */
.secret-field {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-light);
  background: var(--surface-well);
  padding: 6px 8px;
  font-size: var(--fs-sm);
}
.secret-field .mask { letter-spacing: 2px; color: var(--text-muted); }
.secret-field .state { margin-left: auto; display: inline-flex; align-items: center; font-size: var(--fs-micro); letter-spacing: var(--track-wide); }
.secret-field.unset { border-style: dashed; border-color: var(--accent-yellow-ink); background: var(--accent-yellow-trans); }
.secret-field.unset .mask { color: var(--accent-yellow-ink); letter-spacing: var(--track-tight); }

/* FRM-07 · select with bracket caret */
.select-wrap { position: relative; }
.select-wrap select { -webkit-appearance: none; appearance: none; padding-right: 26px; cursor: pointer; }
.select-wrap::after { content: "▾"; position: absolute; right: 9px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; font-size: var(--fs-sm); }

/* FRM-08 · fieldset legend */
.fieldset { border: 1px dashed var(--border-dashed); padding: 12px 12px 2px; margin: 0 0 14px; }
.fieldset > legend { padding: 0 6px; font-size: var(--fs-xs); font-weight: bold; color: var(--text-muted); letter-spacing: var(--track-wide); }
.fieldset > legend::before { content: "// "; color: var(--border-main); }

/* FRM-09 · unsaved changes bar */
.dirty-bar {
  position: sticky;
  bottom: 0;
  display: none;
  align-items: center;
  gap: 10px;
  margin: 15px -20px -20px;
  padding: 8px 20px;
  background: var(--panel-bg-solid);
  border-top: 1px solid var(--accent-yellow);
  box-shadow: inset 0 2px 0 var(--accent-yellow-trans);
  font-size: var(--fs-sm);
  z-index: 5;
}
.dirty-bar.show { display: flex; }
.dirty-bar .count { color: var(--accent-yellow-ink); font-weight: bold; }
.dirty-bar .btn-row { margin: 0 0 0 auto; }
.form-group.is-dirty label::before { content: "● "; color: var(--accent-yellow-ink); }

/* FRM-10 · dangerous option badge */
.risk-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-micro);
  font-weight: bold;
  letter-spacing: var(--track-wide);
  color: var(--accent-red-ink);
  border: 1px dashed var(--accent-red);
  padding: 1px 6px;
  background: var(--accent-red-trans);
}
.risk-badge::before { content: "!"; border: 1px solid var(--accent-red); width: 10px; height: 10px; display: inline-flex; align-items: center; justify-content: center; font-size: 7px; }

/* ==========================================================================
   07 · TERMINAL
   ========================================================================== */

/* TRM-01 · terminal frame with header */
.term { border: 1px solid var(--border-main); background: var(--surface-well); }
.term-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 8px;
  border-bottom: 1px solid var(--border-main);
  font-size: var(--fs-micro);
  letter-spacing: var(--track-wide);
  color: var(--text-muted);
  background: var(--panel-bg-solid);
  flex-wrap: wrap;
}
.term-head .t-title { font-weight: bold; color: var(--text-dark); font-size: var(--fs-sm); }
.term-head .t-title::before { content: "> "; color: var(--accent-blue-ink); }
.term-head .t-tools { margin-left: auto; display: flex; gap: 4px; }
.term-head .btn { padding: 1px 6px; font-size: var(--fs-micro); }
.term-head .chip { padding: 0 6px; font-size: var(--fs-micro); }
.term .terminal-window { border: none; background: transparent; max-height: 240px; min-height: 160px; position: relative; }

/* TRM-03 · level + source columns */
.terminal-line.cols { display: grid; grid-template-columns: auto 38px 58px 1fr; gap: 0 8px; }
.terminal-line.cols .terminal-ts { margin-right: 0; }
.lvl { font-weight: bold; }
.lvl.err { color: var(--accent-red-ink); }
.lvl.wrn { color: var(--accent-yellow-ink); }
.lvl.ok { color: var(--accent-green-ink); }
.lvl.inf { color: var(--accent-blue-ink); }
.lvl.dbg { color: var(--border-main); }
.src-col { color: var(--text-muted); text-transform: uppercase; font-size: var(--fs-micro); letter-spacing: var(--track-wide); align-self: center; }
.terminal-line mark { background: var(--accent-yellow-trans); color: var(--text-dark); outline: 1px solid var(--accent-yellow); }
.terminal-line.gutter { counter-increment: tline; }
.terminal-line.gutter::before { content: counter(tline, decimal-leading-zero); color: var(--border-light); margin-right: 8px; display: inline-block; min-width: 3ch; }

/* TRM-04 · prompt line */
.term-prompt { display: flex; align-items: center; gap: 6px; border-top: 1px dashed var(--border-dashed); padding: 5px 8px; }
.term-prompt::before { content: "$"; color: var(--accent-blue-ink); font-weight: bold; }
.term-prompt input { flex: 1; border: none; background: transparent; font-family: var(--font-mono); font-size: var(--fs-sm); outline: none; color: var(--text-dark); text-transform: none; }

/* TRM-05 · new-lines pill */
.new-lines {
  position: sticky;
  bottom: 4px;
  float: right;
  display: none;
  font-size: var(--fs-micro);
  border: 1px solid var(--accent-blue);
  background: var(--panel-bg-solid);
  color: var(--accent-blue-ink);
  padding: 1px 6px;
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
}
.new-lines.show { display: inline-block; }

/* ==========================================================================
   08 · TOASTS / ALERTS / BANNERS
   ========================================================================== */

/* TST-01..03 · toast stack */
.toast-stack {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  z-index: var(--z-toast);
  width: 300px;
  pointer-events: none;
}
.tst {
  pointer-events: auto;
  position: relative;
  border: 1px solid var(--border-main);
  background: var(--panel-bg-solid);
  padding: 8px 10px 10px;
  font-size: var(--fs-sm);
  font-weight: bold;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2px 8px;
  align-items: start;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.04);
  animation: tst-in var(--t-slow) ease-out;
  overflow: hidden;
}
@keyframes tst-in { from { transform: translateY(20px); opacity: 0; } }
.tst .code { font-size: var(--fs-micro); color: var(--text-muted); font-weight: normal; grid-column: 2; }
.tst .x { background: none; border: none; font-family: inherit; color: var(--text-muted); cursor: pointer; font-size: var(--fs-sm); padding: 0; }
.tst .act { grid-column: 2; margin-top: 4px; }
.tst .life { position: absolute; left: 0; bottom: 0; height: 2px; background: currentColor; opacity: 0.5; animation: tst-life linear forwards; }
@keyframes tst-life { from { width: 100%; } to { width: 0; } }
.tst.ok   { border-color: var(--accent-green-ink);  color: var(--accent-green-ink);  box-shadow: inset 3px 0 0 var(--accent-green); }
.tst.err  { border-color: var(--accent-red-ink);    color: var(--accent-red-ink);    box-shadow: inset 3px 0 0 var(--accent-red); }
.tst.warn { border-color: var(--accent-yellow-ink); color: var(--accent-yellow-ink); box-shadow: inset 3px 0 0 var(--accent-yellow); }
.tst.info { border-color: var(--accent-blue-ink);   color: var(--accent-blue-ink);   box-shadow: inset 3px 0 0 var(--accent-blue); }

/* TST-04 · inline system alert */
.sys-alert {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border-main);
  border-left: 4px solid var(--border-main);
  background: var(--surface-input);
  margin-bottom: 8px;
  font-size: var(--fs-sm);
}
.sys-alert strong { display: block; margin-bottom: 1px; }
.sys-alert span { text-transform: none; letter-spacing: 0.2px; }
.sys-alert.info { border-color: var(--accent-blue-ink);   background: var(--accent-blue-trans);   color: var(--accent-blue-ink); }
.sys-alert.warn { border-color: var(--accent-yellow-ink); background: var(--accent-yellow-trans); color: var(--accent-yellow-ink); }
.sys-alert.crit { border-color: var(--accent-red-ink);    background: var(--accent-red-trans);    color: var(--accent-red-ink); }
.sys-alert .x { background: none; border: none; font-family: inherit; color: inherit; cursor: pointer; align-self: flex-start; }

/* TST-05 · global banner (top of .main) */
.g-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  margin-bottom: 15px;
  border: 1px dashed var(--accent-yellow);
  color: var(--accent-yellow-ink);
  font-size: var(--fs-sm);
  font-weight: bold;
  background-color: var(--accent-yellow-trans);
  background-image: var(--hatch);
}
.g-banner.crit { border-color: var(--accent-red-ink); color: var(--accent-red-ink); background-color: var(--accent-red-trans); }
.g-banner .g-meta { margin-left: auto; font-weight: normal; font-size: var(--fs-micro); color: var(--text-muted); }

/* ==========================================================================
   09 · MODALS / DRAWERS
   ========================================================================== */

/* MDL-01 · structured modal (left-aligned, header bar) */
.modal.modal-std { text-align: left; padding: 0; width: 440px; }
.modal-std .m-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  border-bottom: 1px solid var(--border-main);
  font-size: var(--fs-md);
  font-weight: bold;
}
.modal-std .m-head::before { content: "|"; color: var(--border-main); margin-right: 6px; }
.modal-std .m-head .m-id { margin-left: auto; margin-right: 10px; font-size: var(--fs-micro); color: var(--text-muted); font-weight: normal; }
.modal-std .m-body { padding: 15px; }
.modal-std .m-body p { text-align: left; text-transform: none; letter-spacing: 0.2px; }
.modal-std .m-foot { display: flex; gap: 8px; justify-content: flex-end; padding: 10px 15px; border-top: 1px dashed var(--border-dashed); background: var(--surface-well); }
.modal.modal-crit { border-color: var(--accent-red-ink); }
.modal.modal-crit::before { background: var(--accent-red); }
.modal-crit .m-head { color: var(--accent-red-ink); border-bottom-color: var(--accent-red-ink); }

/* MDL-02 · type-to-confirm */
.confirm-type { margin-top: 10px; }
.confirm-type code { color: var(--accent-red-ink); font-weight: bold; font-family: inherit; }

/* MDL-04 · side drawer */
.drawer-scrim { position: fixed; inset: 0; background: var(--scrim); opacity: 0; pointer-events: none; transition: opacity var(--t-base); z-index: var(--z-overlay); }
.drawer-scrim.show { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 92vw);
  background: var(--bg-color);
  border-left: 1px solid var(--border-main);
  transform: translateX(105%);
  transition: transform var(--t-base) ease;
  z-index: calc(var(--z-overlay) + 1);
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.08);
}
.drawer.show { transform: translateX(0); }
.drawer::before { content: ""; position: absolute; top: -1px; left: -1px; width: 6px; height: 6px; background: var(--text-muted); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 15px; border-bottom: 2px solid var(--border-main); font-weight: bold; font-size: var(--fs-md); }
.drawer-body { padding: 15px; overflow-y: auto; flex: 1; }
.drawer-foot { padding: 10px 15px; border-top: 1px dashed var(--border-dashed); display: flex; gap: 8px; }

/* MDL-05 / GAP-01 · step sequence */
.steps { display: flex; gap: 0; margin: 6px 0 14px; counter-reset: step; }
.step {
  flex: 1;
  border-top: 2px solid var(--border-light);
  padding-top: 6px;
  font-size: var(--fs-micro);
  color: var(--text-muted);
  letter-spacing: var(--track-wide);
  counter-increment: step;
  position: relative;
}
.step::before { content: counter(step, decimal-leading-zero) " "; color: var(--border-main); }
.step.done { border-top-color: var(--accent-green-ink); color: var(--text-dark); }
.step.done::before { content: "✓ "; color: var(--accent-green-ink); }
.step.now { border-top-color: var(--accent-blue-ink); color: var(--accent-blue-ink); font-weight: bold; }
.step.now::after { content: ""; position: absolute; top: -2px; left: 0; height: 2px; width: 40%; background: var(--text-dark); animation: step-run 1.2s ease-in-out infinite alternate; }
.step.fail { border-top-color: var(--accent-red-ink); color: var(--accent-red-ink); }
.step + .step { margin-left: 3px; }
@keyframes step-run { to { left: 60%; } }

/* ==========================================================================
   10 · GAPS — lifecycle, tooltip, clock, pagination · 11 · LIVE ACTION
   ========================================================================== */

/* GAP-02 · lifecycle chip chain */
.lifecycle { display: flex; flex-wrap: wrap; gap: 2px; font-size: var(--fs-micro); letter-spacing: var(--track-wide); }
.lifecycle span { padding: 2px 6px; border: 1px solid var(--border-light); color: var(--border-main); }
.lifecycle span.past { color: var(--text-muted); border-color: var(--border-main); }
.lifecycle span.now { color: var(--ink-on-accent); background: var(--accent-blue); border-color: var(--accent-blue-ink); font-weight: bold; }
.lifecycle span.now.warn { background: var(--accent-yellow); border-color: var(--accent-yellow-ink); }
.lifecycle span.now.crit { background: var(--accent-red); border-color: var(--accent-red-ink); }

/* GAP-04 · bracket tooltip */
[data-tip] { position: relative; }
[data-tip]:hover::after,
[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  bottom: calc(100% + 6px);
  white-space: nowrap;
  background: var(--text-dark);
  color: var(--bg-color);
  font-size: var(--fs-micro);
  padding: 3px 6px;
  letter-spacing: var(--track-wide);
  z-index: 20;
  pointer-events: none;
}

/* GAP-05 · clock / countdown */
.clock-box { border: 1px solid var(--border-light); background: var(--surface-input); padding: 8px 10px; text-align: center; }
.clock-box .c-label { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); }
.clock-box .c-time { font-size: var(--fs-xl); font-weight: bold; letter-spacing: var(--track-xwide); font-variant-numeric: tabular-nums; }
.clock-box .c-time .ms { font-size: var(--fs-sm); color: var(--accent-blue-ink); }

/* GAP-06 · pagination */
.pager { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm); }
.pager .pos { font-variant-numeric: tabular-nums; color: var(--text-muted); }
.pager .pos b { color: var(--text-dark); }

/* LIVE-01 · momentary action pad (hold-to-act; inspired by VoIPtoHorns talk button) */
.momentary-pad {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--accent-blue);
  background: var(--surface-submit);
  color: var(--accent-blue-ink);
  font-family: var(--font-mono);
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: var(--track-xwide);
  font-size: 14px;
  cursor: pointer;
  position: relative;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  transition: background var(--t-fast), color var(--t-fast);
}
.momentary-pad::before,
.momentary-pad::after { position: absolute; font-size: 42px; font-weight: normal; color: var(--accent-blue-ink); opacity: 0.5; top: 50%; transform: translateY(-55%); }
.momentary-pad::before { content: "["; left: 14px; }
.momentary-pad::after { content: "]"; right: 14px; }
.momentary-pad small { font-size: var(--fs-micro); letter-spacing: var(--track-wide); color: var(--text-muted); font-weight: normal; }
.momentary-pad:hover { background: var(--accent-blue-trans); }
.momentary-pad.connecting { border-style: dashed; color: var(--text-muted); border-color: var(--border-main); background: var(--surface-well); pointer-events: none; }
.momentary-pad.live { background: var(--accent-red); border-color: var(--accent-red-ink); color: var(--ink-on-accent); }
.momentary-pad.live::before,
.momentary-pad.live::after { color: var(--ink-on-accent); opacity: 0.8; }
.momentary-pad.live small { color: var(--ink-on-accent); }
.momentary-pad:disabled { opacity: 0.5; background-image: var(--hatch); cursor: not-allowed; }

/* LIVE-03 · level meter with peak hold */
.level-meter { display: flex; gap: 2px; height: 14px; position: relative; }
.level-meter i { flex: 1; border: 1px solid var(--border-light); background: var(--surface-well); }
.level-meter i.on { background: var(--accent-green); border-color: var(--accent-green-ink); }
.level-meter i.on.hot { background: var(--accent-yellow); border-color: var(--accent-yellow-ink); }
.level-meter i.on.clip { background: var(--accent-red); border-color: var(--accent-red-ink); }
.level-meter i.peak { border-color: var(--text-dark); }
.level-scale { display: flex; justify-content: space-between; font-size: var(--fs-micro); color: var(--text-muted); margin-top: 2px; }

/* LIVE-02 · target selector grid */
.target-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px; }
.target-cell {
  border: 1px solid var(--border-main);
  background: var(--surface-input);
  padding: 7px 8px;
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
  text-align: left;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: var(--fs-sm);
}
.target-cell .tg-name { display: flex; align-items: center; font-weight: bold; }
.target-cell .tg-sub { font-size: var(--fs-micro); letter-spacing: var(--track-wide); }
.target-cell::before { content: "[ ]"; font-size: var(--fs-micro); color: var(--border-main); }
.target-cell.active { border-color: var(--accent-blue-ink); background: var(--accent-blue-trans); color: var(--text-dark); }
.target-cell.active::before { content: "[X]"; color: var(--accent-blue-ink); }
.target-cell.offline { background-image: var(--hatch); cursor: not-allowed; opacity: 0.6; }
.target-cell.offline::before { content: "[-]"; }
.target-cell.transmitting { border-color: var(--accent-red-ink); box-shadow: inset 3px 0 0 var(--accent-red); }

/* LIVE-04 · live-action banner */
.live-banner {
  display: none;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--accent-red);
  background: var(--accent-red-trans);
  color: var(--accent-red-ink);
  padding: 6px 12px;
  font-weight: bold;
  font-size: var(--fs-md);
  letter-spacing: var(--track-xwide);
  margin-bottom: 15px;
}
.live-banner.show { display: flex; }
.live-banner .lamp { animation: lamp-breathe 0.8s ease-in-out infinite; }
.live-banner .num { margin-left: auto; font-variant-numeric: tabular-nums; }

/* Responsive rules for the 0.3.0 components */
@media (max-width: 768px) {
  .kv-grid { grid-template-columns: 1fr; }
  .feed-row { grid-template-columns: 56px 40px 1fr auto; }
  .feed-row .src { display: none; }
  .toast-stack { left: 12px; right: 12px; width: auto; bottom: max(16px, env(safe-area-inset-bottom)); }
  .modal.modal-std { width: calc(100% - 28px); }
  .preflight { grid-template-columns: 1fr; }
  .chain-link { flex-basis: 14px; }
  .ws-bar .ws-meta { margin-left: 0; width: 100%; }
}

/* ==========================================================================
   14 · THEMES — Light / Dark / System selector (THM-01..03)
   Accepted 2026-09-28. Token blocks live in css/theme.css (load last).
   ========================================================================== */


/* THM-01 · glyphs drawn in CSS: light = open ring, dark = solid, system = half */
.theme-glyph {
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
  border-radius: 50%;
  flex-shrink: 0;
}
.theme-glyph.dark { background: currentColor; }
.theme-glyph.system { background: linear-gradient(90deg, currentColor 50%, transparent 50%); }

/* THM-01 · segmented selector (radiogroup) */
.theme-switch { display: inline-flex; align-items: stretch; border: 1px solid var(--border-main); }
.theme-switch::before { content: "["; color: var(--border-main); padding: 4px 0 0 6px; }
.theme-switch::after { content: "]"; color: var(--border-main); padding: 4px 6px 0 0; }
.theme-switch button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  background: transparent;
  border: none;
  padding: 5px 9px;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.theme-switch button + button { border-left: 1px dotted var(--border-main); }
.theme-switch button:hover { color: var(--text-dark); background: var(--panel-bg-hover); }
.theme-switch button[aria-checked="true"] { color: var(--text-dark); background: var(--accent-blue-trans); font-weight: bold; box-shadow: inset 0 -2px 0 var(--accent-blue); }
.theme-switch button:focus-visible { outline: var(--focus-ring); outline-offset: -3px; }
.theme-switch.sm button { padding: 3px 7px; font-size: var(--fs-micro); }

/* THM-01 · resolved read-out ("SYSTEM → DARK") */
.theme-resolved { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); white-space: nowrap; }
.theme-resolved b { color: var(--text-dark); }

/* THM-02 · compact cycle button: [ ◐ SYS ] */
.theme-cycle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: var(--fs-micro);
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border-main);
  padding: 3px 7px;
  cursor: pointer;
  white-space: nowrap;
}
.theme-cycle::before { content: "["; color: var(--border-main); }
.theme-cycle::after { content: "]"; color: var(--border-main); }
.theme-cycle:hover { color: var(--text-dark); background: var(--panel-bg-hover); }
.theme-cycle:focus-visible { outline: var(--focus-ring); outline-offset: var(--focus-offset); }

/* THM-03 · settings row: radio options with preview swatches */
.theme-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.theme-option {
  border: 1px solid var(--border-main);
  background: var(--surface-input);
  padding: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  font-size: var(--fs-sm);
}
.theme-option input { position: absolute; opacity: 0; width: 0; height: 0; }
.theme-option .to-head { display: flex; align-items: center; gap: 6px; font-weight: bold; }
.theme-option .to-head::before { content: "( )"; color: var(--border-main); font-weight: normal; }
.theme-option .to-sub { font-size: var(--fs-micro); color: var(--text-muted); letter-spacing: var(--track-wide); }
.theme-option .to-prev { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; height: 22px; border: 1px solid var(--border-main); }
.theme-option .to-prev i { display: block; }
.theme-option .to-prev.light i:nth-child(1) { background: #f4f5f4; }
.theme-option .to-prev.light i:nth-child(2) { background: #374151; }
.theme-option .to-prev.light i:nth-child(3) { background: #6388b0; }
.theme-option .to-prev.light i:nth-child(4) { background: #a3b1a6; }
.theme-option .to-prev.dark i:nth-child(1) { background: #141715; }
.theme-option .to-prev.dark i:nth-child(2) { background: #d9dfda; }
.theme-option .to-prev.dark i:nth-child(3) { background: #88a7c8; }
.theme-option .to-prev.dark i:nth-child(4) { background: #606f64; }
.theme-option .to-prev.system { grid-template-columns: 1fr 1fr; }
.theme-option .to-prev.system i:nth-child(1) { background: linear-gradient(90deg, #f4f5f4 0 50%, #374151 50%); }
.theme-option .to-prev.system i:nth-child(2) { background: linear-gradient(90deg, #141715 0 50%, #d9dfda 50%); }
.theme-option:has(input:checked) { border-color: var(--accent-blue); background: var(--accent-blue-trans); }
.theme-option:has(input:checked) .to-head::before { content: "(●)"; color: var(--accent-blue-ink); }
.theme-option:has(input:focus-visible) { outline: var(--focus-ring); outline-offset: var(--focus-offset); }

@media (max-width: 768px) {
  .theme-options { grid-template-columns: 1fr; }
  .theme-switch button { padding: 10px 12px; min-height: 40px; }
}

.mobile-top .theme-cycle { margin-left: auto; }
.sidebar-footer .theme-cycle { margin-bottom: 8px; }