/*
 * Shell UI layer
 * Presentation-only overrides for the existing toolbox DOM and tool engines.
 * Keep functional selectors and js/tools/* behavior in the original files.
 */

:root {
  --bg-base: #0b0e13;
  --bg-panel: #11151c;
  --bg-surface: #171c24;
  --bg-hover: #1d232d;
  --bg-active: #252c3a;
  --border: #29313d;
  --border-focus: #4a90e2;
  --text-primary: #f0f1f3;
  --text-secondary: #9aa3b1;
  --text-muted: #626c7d;
  --text-accent: #4a90e2;
  --text-success: #51c58a;
  --text-error: #f06d6d;
  --text-warn: #e2a94a;
  --accent: #4a90e2;
  --accent-hover: #5a9ee8;
  --accent-dim: rgba(74, 144, 226, 0.12);
  --accent-line: rgba(74, 144, 226, 0.38);
  --on-accent: #ffffff;
  --success: #51c58a;
  --error: #f06d6d;
  --input-bg: #0d1117;
  --input-border: #343d4b;
  --diff-equal-bg: #18202c;
  --diff-add-bg: #163d2d;
  --diff-remove-bg: #452127;
  --diff-filler-bg: #222a36;
  --diff-marker-width: 3px;
  --diff-pane-divider-width: 9px;
  --diff-pane-min-width: 220px;
  --diff-split-effective-left-w: clamp(
    var(--diff-pane-min-width),
    var(--diff-split-left-w, calc((100% - var(--diff-pane-divider-width)) / 2)),
    calc(100% - var(--diff-pane-divider-width) - var(--diff-pane-min-width))
  );
  --sidebar-w: 196px;
  --radius: 4px;
  --radius-sm: 3px;
  --shadow-float: 0 22px 70px rgba(0, 0, 0, 0.48);
}

body.light {
  --bg-base: #edf1f5;
  --bg-panel: #ffffff;
  --bg-surface: #f2f4f7;
  --bg-hover: #e8ecf1;
  --bg-active: #dbe4f2;
  --border: #d8dee7;
  --border-focus: #2e6ec4;
  --text-primary: #171b22;
  --text-secondary: #5c6572;
  --text-muted: #8993a1;
  --text-accent: #2e6ec4;
  --text-success: #167a49;
  --text-error: #c43e3e;
  --text-warn: #b07a1a;
  --accent: #2e6ec4;
  --accent-hover: #2560ad;
  --accent-dim: rgba(46, 110, 196, 0.10);
  --accent-line: rgba(46, 110, 196, 0.34);
  --on-accent: #ffffff;
  --success: #167a49;
  --error: #c43e3e;
  --input-bg: #ffffff;
  --input-border: #bdc5d0;
  --diff-equal-bg: #e7ecf3;
  --diff-add-bg: #cde9d8;
  --diff-remove-bg: #f2cdd1;
  --diff-filler-bg: #dce2ea;
  --shadow-float: 0 22px 65px rgba(28, 36, 48, 0.2);
}

body {
  color-scheme: dark;
  letter-spacing: -0.005em;
}

body.light { color-scheme: light; }

button,
input,
select,
textarea { font-family: inherit; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

::selection {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--accent) 32%, transparent);
}

/* Shell ------------------------------------------------------------------ */

#header {
  height: 52px;
  gap: 10px;
  padding: 0 12px;
  background: color-mix(in srgb, var(--bg-panel) 96%, transparent);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.015);
}

#header .logo {
  font-size: 14px;
  letter-spacing: -0.055em;
}

#header .logo span { color: var(--accent); }

#sidebar-toggle,
#theme-toggle {
  width: 32px;
  height: 32px;
  padding: 0;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

#sidebar-toggle { display: inline-flex; align-items: center; }
#theme-toggle { margin-left: 0; }

#sidebar-toggle:hover,
#theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.header-tool {
  gap: 8px;
  padding-left: 10px;
}

.header-tool .tool-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: -0.025em;
}

.header-tool .tool-desc {
  max-width: min(34vw, 470px);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.03em;
}

#command-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 230px;
  height: 32px;
  padding: 0 7px 0 10px;
  color: var(--text-muted);
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

#command-trigger:hover {
  color: var(--text-secondary);
  border-color: var(--accent-line);
  background: var(--bg-surface);
}

#command-trigger svg { width: 14px; height: 14px; }
#command-trigger span { flex: 1; text-align: left; font-size: 11.5px; }

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  min-height: 19px;
  padding: 1px 5px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--border) 75%, transparent);
  font: 500 9.5px/1 var(--font-mono);
  white-space: nowrap;
}

.header-meta {
  min-width: 118px;
  text-align: right;
  font-size: 12px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

#body { background: var(--bg-base); }

#sidebar {
  border-right-color: var(--border);
  box-shadow: 1px 0 0 rgba(255, 255, 255, 0.01);
}

.sidebar-home-section {
  margin-top: 0;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}

.sidebar-section { margin-top: 6px; }

.sidebar-group-label {
  padding: 9px 14px 5px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.17em;
}

.sidebar-item {
  width: 100%;
  min-height: 34px;
  padding: 7px 13px;
  background: transparent;
  border: 0;
  border-left: 2px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-ui);
  text-align: left;
}

.sidebar-item .icon {
  display: inline-flex;
  width: 16px;
  justify-content: center;
  opacity: 0.78;
}

.sidebar-item .icon svg { width: 13px; height: 13px; }

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

.sidebar-item.active {
  color: var(--text-accent);
  background: linear-gradient(90deg, var(--accent-dim), transparent 90%);
  border-left-color: var(--accent);
}

.sidebar-copyright {
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-align: left;
  font: 400 8.5px/1.4 var(--font-mono);
  letter-spacing: 0.01em;
}

.sidebar-offline {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-muted);
}

.sidebar-offline svg { width: 10px; height: 10px; color: var(--success); }

#sidebar-scrim { display: none; }

/* Shared instrument grammar --------------------------------------------- */

.options-row {
  min-height: 43px;
  padding: 6px 10px;
  gap: 6px;
  background: var(--bg-panel);
  border-bottom-color: var(--border);
}

.options-row > label:not(.sw-label):not(.zpl-toggle-label) {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.btn,
.btn-primary {
  min-height: 29px;
  padding: 5px 9px;
  border-color: var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
}

.btn:hover,
.btn-primary:hover {
  color: var(--text-primary);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.btn.active {
  color: var(--text-accent);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.btn.primary,
.btn-primary {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

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

.btn.danger {
  color: var(--text-error);
  border-color: transparent;
  background: transparent;
}

.btn.danger:hover {
  color: var(--text-error);
  border-color: color-mix(in srgb, var(--error) 34%, transparent);
  background: color-mix(in srgb, var(--error) 10%, transparent);
}

.tool-divider { background: var(--border); opacity: 0.75; }

.tool-label-sm,
.tool-desc { color: var(--text-muted); }

.tool-input-sm,
select,
input[type="text"],
input[type="search"],
input[type="number"],
input[type="password"] {
  border-color: var(--input-border);
}

.pane-layout { border-top-color: var(--border); }
.pane { background: var(--bg-base); }

.pane-header {
  min-height: 34px;
  padding: 7px 10px;
  background: var(--bg-panel);
  border-color: var(--border);
}

.pane-label {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.pane-divider {
  width: 7px;
  background: var(--bg-panel);
  border-color: var(--border);
}

.pane-divider-h {
  height: 7px;
  background: var(--bg-panel);
  border-color: var(--border);
}

.pane-divider:hover,
.pane-divider.dragging,
.pane-divider-h:hover,
.pane-divider-h.dragging {
  background: var(--accent-dim);
  border-color: var(--accent-line);
}

textarea.code-input,
.code-output,
.code-input[contenteditable="true"] {
  background-color: var(--input-bg);
  caret-color: var(--accent);
}

.status-bar {
  height: 36px;
  min-height: 36px;
  padding: 6px 12px;
  gap: 10px;
  color: var(--text-muted);
  background: var(--bg-panel);
  border-top-color: var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

/* Keep the Diff result toolbar aligned with the shared status-bar chrome. */
#diff-output-section > .pane-header {
  height: 36px;
  min-height: 36px;
  padding: 6px 12px;
  gap: 10px;
}

.badge {
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.055em;
}

/* ── Segmented control ──────────────────────────────────────────────────────
   A joined run of mutually-exclusive mode buttons. Wrap any group of mode
   .btn's in <div class="segmented"> to render them as one control; the buttons
   keep their existing ids/handlers, so tool engines are untouched. */
.segmented {
  display: inline-flex;
  flex: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.segmented .btn {
  min-height: 27px;
  border: 0;
  border-radius: 0;
  background: var(--bg-surface);
}
.segmented .btn + .btn { border-left: 1px solid var(--border); }
.segmented .btn:hover:not(.active) { background: var(--bg-hover); color: var(--text-primary); }
.segmented .btn.active { background: var(--accent-dim); color: var(--text-accent); }

/* ── Status pills ───────────────────────────────────────────────────────────
   Tool engines set .status-ok / .status-err / .status-warn on their status
   element; render those states as rounded state chips with a leading dot.
   Scoped to .status-bar to match the base rules' specificity (shell.css loads
   after styles.css, so these win). Plain text (.status-muted / .status-info /
   unclassed) stays as-is. */
.status-bar .status-ok,
.status-bar .status-err,
.status-bar .status-error,
.status-bar .status-warn,
#diff-status .status-ok,
#diff-status .status-err {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 9px;
  border: 0;
  border-radius: 999px;
  font-weight: 400;
  white-space: nowrap;
}
.status-bar .status-ok::before,
.status-bar .status-err::before,
.status-bar .status-error::before,
.status-bar .status-warn::before,
#diff-status .status-ok::before,
#diff-status .status-err::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}
.status-bar .status-ok,
#diff-status .status-ok   { color: var(--text-success); background: color-mix(in srgb, var(--success) 15%, transparent); }
.status-bar .status-err,
.status-bar .status-error,
#diff-status .status-err  { color: var(--text-error);   background: color-mix(in srgb, var(--error) 15%, transparent); }
.status-bar .status-warn  { color: var(--text-warn);    background: color-mix(in srgb, var(--text-warn) 16%, transparent); }

/* Diff statuses omit the shared leading dot. An identical comparison is a
   single informational pill in either the pane header or footer status bar. */
#diff-status .status-ok::before,
#diff-status .status-err::before,
#diff-sbs-status .status-ok::before,
#diff-sbs-status .status-err::before {
  display: none;
}
#diff-status .status-info,
#diff-sbs-status .status-info {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 400;
  white-space: nowrap;
}
#diff-status .status-info,
#diff-sbs-status .status-info { color: var(--text-accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }

/* ── Floating image overlay (shared pill) — frosted glass ─────────────────────
   Frosted graphite glass over the canvas with a live zoom read-out in the pill;
   accent only on the open zoom control. One component (js/utils/imageOverlay.js)
   shared by ZPL Viewer, Image→ZPL, MaxiCode, and the Designer. */
.img-overlay-bar,
.img-overlay-zoompop {
  background: color-mix(in srgb, var(--bg-panel) 86%, transparent);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border-color: var(--input-border);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 0, 0, 0.18);
}
body.light .img-overlay-bar,
body.light .img-overlay-zoompop {
  border-color: var(--border);
  box-shadow: 0 6px 22px rgba(28, 36, 48, 0.16), 0 0 0 1px rgba(28, 36, 48, 0.06);
}
.img-overlay-bar { opacity: 0.5; }
/* Noticeable when inactive, while still receding beneath the fully active pill. */
.img-overlay-bar.idle { opacity: 0.3; }
.img-overlay-bar button:hover:not(:disabled) {
  background: var(--accent-dim);
  color: var(--text-accent);
}
/* Zoom button now carries the live % → auto width + pill shape */
.img-overlay-bar .img-overlay-zoombtn {
  width: auto;
  gap: 5px;
  padding: 0 9px 0 7px;
  border-radius: 999px;
}
.img-overlay-zoomnow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}
.img-overlay-bar .img-overlay-zoombtn:hover .img-overlay-zoomnow { color: var(--text-accent); }
.img-overlay-bar .img-overlay-zoombtn.is-open {
  background: var(--accent-dim);
  color: var(--text-accent);
}
.img-overlay-bar .img-overlay-zoombtn.is-open .img-overlay-zoomnow { color: var(--text-accent); }
.img-overlay-zoompop input[type="range"] { accent-color: var(--accent); }
.img-overlay-z100:hover { border-color: var(--accent-line); color: var(--text-accent); }

/* ── Designer Properties as an overlay drawer ──────────────────────────────
   The Properties inspector slides in from the right OVER a full-bleed canvas,
   instead of reserving a flex column between the ZPL editor and the canvas.
   That keeps the Designer's canvas in the same column as the ZPL Viewer's
   preview (the label never jumps on hand-off) and follows the design-tool
   convention of a right-docked inspector. Toggled by the .zd-drawer-open class
   on #zd-pane-layout (js/tools/zplDesigner.js). */
#zd-pane-props {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 272px;
  min-width: 0;
  z-index: 20;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  transform: translateX(100%);
  transition: transform var(--motion-slow) var(--ease-out);
  overflow: auto;
}
#zd-pane-layout.zd-drawer-open #zd-pane-props {
  transform: translateX(0);
  box-shadow: -14px 0 34px rgba(0, 0, 0, 0.34);
}
body.light #zd-pane-layout.zd-drawer-open #zd-pane-props {
  box-shadow: -14px 0 34px rgba(28, 36, 48, 0.16);
}
/* The middle divider is gone — the drawer is a fixed-width overlay. */
#zd-pane-divider-b { display: none; }
/* Shift the centered label clear of the open drawer so it's never occluded. */
#zd-canvas-scroll { transition: padding-right var(--motion-slow) var(--ease-out); }
#zd-pane-layout.zd-drawer-open #zd-canvas-scroll { padding-right: 272px; }
/* Keep the floating pill out from under the open drawer (it docks bottom-right
   of the canvas, exactly where the drawer sits). Slide it left by the drawer
   width so both stay usable. */
#zd-canvas-section .img-overlay-pill { transition: right var(--motion-slow) var(--ease-out), opacity var(--motion-slow) var(--ease-out); }
#zd-pane-layout.zd-drawer-open #zd-canvas-section .img-overlay-pill { right: 286px; }

/* ── Designer inspector — grouped, cohesive properties ─────────────────────
   An element header with quick actions, quiet mono section labels, a reserved
   label column, and segmented/range controls. Presentation only — the field
   hooks are unchanged (js/tools/zplDesigner.js renderProps). */
.zd-props {
  --zd-prop-label-w: 74px;
  --zd-prop-col-gap: 10px;
  padding: 10px 12px 14px;
  gap: 0;
  font-family: var(--font-ui);
}
.zd-props-head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: -10px -12px 4px;
  padding: 9px 11px;
  border-bottom: 1px solid var(--border);
}
.zd-props-tile {
  width: 26px; height: 26px; flex: none;
  display: grid; place-items: center;
  border-radius: var(--radius);
  background: var(--accent-dim); color: var(--text-accent);
}
.zd-props-tile svg { width: 15px; height: 15px; }
.zd-props-id { display: flex; flex-direction: column; min-width: 0; line-height: 1.18; }
.zd-props-nm { font-family: var(--font-ui); font-weight: 600; font-size: 13px; color: var(--text-primary); }
.zd-props-sub { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .02em; color: var(--text-muted); }
.zd-props-acts { margin-left: auto; display: flex; gap: 3px; }
.zd-iact {
  width: 26px; height: 26px; flex: none; border: 0;
  border-radius: var(--radius-sm); background: transparent; color: var(--text-muted);
  display: grid; place-items: center; cursor: pointer;
  transition: background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard);
}
.zd-iact:hover { background: var(--bg-surface); color: var(--text-primary); }
.zd-iact.zd-iact-del:hover { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--text-error); }
.zd-iact svg { width: 14px; height: 14px; }

.zd-prop-section {
  padding-top: 10px;
}
.zd-prop-section + .zd-prop-section {
  margin-top: 10px;
  border-top: 1px solid var(--border);
}
.zd-sec {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 8px;
  padding: 0;
  border: 0;
}
.zd-prop-rows {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.zd-prop-row {
  display: grid;
  grid-template-columns: var(--zd-prop-label-w) minmax(0, 1fr);
  gap: var(--zd-prop-col-gap);
  align-items: center;
  min-width: 0;
}
.zd-prop-row.zd-prop-row-top { align-items: start; }
.zd-prop-label {
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: .02em;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}
.zd-prop-row-top .zd-prop-label { padding-top: 5px; }
.zd-prop-control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.zd-prop-control .zd-in,
.zd-prop-control .btn,
.zd-prop-control .zpl-toggle-label {
  font-family: var(--font-mono);
}
.zd-prop-control .zd-in {
  min-width: 0;
  font-size: 12px;
  font-weight: 400;
}
.zd-prop-control textarea.zd-in {
  line-height: 1.5;
  resize: vertical;
}
.zd-prop-subgroup {
  margin: 2px 0 0;
  font: 400 9px/1.55 var(--font-mono);
  letter-spacing: .06em;
  color: var(--text-muted);
}
.zd-prop-subgroup:not(:first-child) { margin-top: 6px; }
.zd-prop-note {
  margin-left: calc(var(--zd-prop-label-w) + var(--zd-prop-col-gap));
  font: 400 9.5px/1.45 var(--font-mono);
  color: var(--text-muted);
}
.zd-prop-note code { font: inherit; color: var(--text-secondary); }

.zd-number-slider {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  min-width: 0;
}
.zd-number-slider .zd-number-in {
  width: 56px;
  padding-inline: 6px;
  font-variant-numeric: tabular-nums;
}
.zd-number-slider .zd-slider {
  width: 100%;
  min-width: 0;
  height: 18px;
  margin: 0;
  appearance: none;
  background: transparent;
}
.zd-number-slider .zd-slider::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 999px;
  background: var(--input-border);
}
.zd-number-slider .zd-slider::-webkit-slider-thumb {
  width: 12px;
  height: 12px;
  margin-top: -4.5px;
  appearance: none;
  border: 2px solid var(--bg-panel);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-line);
}
.zd-number-slider .zd-slider::-moz-range-track {
  height: 3px;
  border-radius: 999px;
  background: var(--input-border);
}
.zd-number-slider .zd-slider::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border: 2px solid var(--bg-panel);
  border-radius: 50%;
  background: var(--accent);
}
.zd-number-slider .zd-slider:focus-visible { outline: none; }
.zd-number-slider .zd-slider:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px var(--accent-line);
}
.zd-coordinate-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  min-width: 0;
}
.zd-coordinate-pair .zd-in {
  min-width: 0;
  font-variant-numeric: tabular-nums;
}

/* Justification / orientation as one joined segmented control. */
.zd-just-row {
  gap: 0;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.zd-just-btn {
  border: 0;
  border-radius: 0;
  background: var(--input-bg);
  font: 600 11px/1 var(--font-mono);
}
.zd-just-btn + .zd-just-btn { border-left: 1px solid var(--input-border); }
.zd-just-btn[data-orient] { font-weight: 400; }
.zd-just-btn:hover:not(.active) { background: var(--bg-hover); color: var(--text-primary); }
.zd-just-btn.active { background: var(--accent-dim); color: var(--text-accent); border-color: transparent; }

/* ── Theme toggle: icon + current-mode label ─────────────────────────────── */
#theme-toggle { width: auto; gap: 6px; padding: 0 11px; font: 500 12px var(--font-ui); }
#theme-toggle svg { width: 15px; height: 15px; }
#theme-toggle span { font-size: 12px; letter-spacing: .01em; }

/* ── Designer elements panel (layers list) ───────────────────────────────── */
.zd-layers-head {
  display: flex; align-items: center; gap: 9px;
  margin: -10px -12px 3px; padding: 9px 12px;
  border-bottom: 1px solid var(--border);
}
.zd-layers-title { font-weight: 600; font-size: 13px; color: var(--text-primary); }
.zd-layers-count {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--text-secondary);
  background: var(--bg-surface); padding: 1px 7px; border-radius: 20px;
}
.zd-layers { margin: 0 -12px; display: flex; flex-direction: column; }
.zd-layer {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 7px 12px; border: 0; background: transparent; text-align: left; cursor: pointer;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
}
.zd-layer:hover { background: var(--bg-hover); }
.zd-layer-tile {
  width: 26px; height: 26px; flex: none; border-radius: 6px;
  background: var(--bg-surface); display: grid; place-items: center; color: var(--text-secondary);
}
.zd-layer-tile svg { width: 15px; height: 15px; }
.zd-layer-id { min-width: 0; flex: 1; display: flex; flex-direction: column; line-height: 1.25 }
.zd-layer-nm { font-size: 12.5px; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.zd-layer-sub { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.zd-layer-del {
  opacity: 0; flex: none; border: 0; background: transparent; color: var(--text-muted);
  cursor: pointer; padding: 4px; border-radius: var(--radius-sm); display: grid; place-items: center;
}
.zd-layer:hover .zd-layer-del { opacity: 1; }
.zd-layer-del:hover { color: var(--text-error); background: color-mix(in srgb, var(--error) 12%, transparent); }
.zd-layer-del svg { width: 14px; height: 14px; }
@media (prefers-reduced-motion: reduce) {
  #zd-pane-props,
  #zd-canvas-scroll { transition: none; }
}

.sw-track,
.zpl-toggle-track { background: var(--input-border); }

.sw-label input:checked + .sw-track,
.zpl-toggle-label input:checked + .zpl-toggle-track { background: var(--accent); }

#zpl-pane-right,
#zd-pane-preview,
#itz-preview-section {
  background-color: var(--bg-base);
  background-image: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--border) 25%, transparent) 0,
    color-mix(in srgb, var(--border) 25%, transparent) 1px,
    transparent 1px,
    transparent 10px
  );
}

/* Timezone day/night shading. Classes are applied by the shell layer
   from the hour labels already rendered by the untouched timezone engine. */
.tz-cell.tz-phase-night {
  color: #d8deea;
  background: #15213c;
  border-left-color: rgba(255, 255, 255, 0.08);
}

.tz-cell.tz-phase-day {
  color: #211a0d;
  background: #e6ad37;
  border-left-color: rgba(70, 44, 0, 0.16);
}

.tz-cell.tz-phase-dawn {
  color: #e8edf6;
  background: linear-gradient(90deg, #20375b, #d09d3c);
}

.tz-cell.tz-phase-dusk {
  color: #211a0d;
  background: linear-gradient(90deg, #e6ad37, #20375b);
}

body.light .tz-cell.tz-phase-night { color: #eef2f8; background: #1b2947; }
body.light .tz-cell.tz-phase-day { color: #211a0d; background: #e7b84f; }

.tz-cell.tz-phase-night .tz-cell-ap,
.tz-cell.tz-phase-dawn .tz-cell-ap { color: rgba(238, 242, 248, 0.7); }

.tz-cell.tz-phase-day .tz-cell-ap,
.tz-cell.tz-phase-dusk .tz-cell-ap { color: rgba(33, 26, 13, 0.62); }

.tz-cell.tz-cell-date {
  color: #eef2f8;
  background: #101a30;
  border-left-color: var(--accent);
}

/* Home ------------------------------------------------------------------- */

.home-panel {
  position: relative;
  background-color: var(--bg-base);
  background-image:
    linear-gradient(color-mix(in srgb, var(--border) 24%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--border) 24%, transparent) 1px, transparent 1px);
  background-size: 32px 32px;
}

.home-scroll {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  padding: clamp(28px, 4vw, 58px) clamp(22px, 5vw, 74px) 34px;
  overflow: auto;
}

.home-hero,
.home-section,
.home-footnote {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.home-hero { margin-bottom: 34px; }

.home-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
  color: var(--text-muted);
  font: 500 9px/1.4 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.home-kicker span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 13%, transparent);
}

.home-hero h1 {
  margin: 0;
  color: var(--text-primary);
  font: 600 clamp(26px, 3vw, 42px)/1.08 var(--font-mono);
  letter-spacing: -0.055em;
}

.home-hero p {
  margin-top: 9px;
  color: var(--text-secondary);
  font-size: 13px;
}

.home-section { margin-top: 28px; }

.home-section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 11px;
}

.home-section-heading::after {
  content: '';
  height: 1px;
  flex: 1;
  background: var(--border);
}

.home-section-heading h2 {
  color: var(--text-muted);
  font: 500 9px/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.home-section-heading span {
  order: 3;
  color: var(--text-muted);
  font: 400 9px/1 var(--font-mono);
}

.home-recent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  min-height: 30px;
}

.home-recent-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 29px;
  padding: 5px 10px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 10.5px;
  cursor: pointer;
}

.home-recent-chip:hover {
  color: var(--text-accent);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.home-recent-chip svg { width: 12px; height: 12px; }

.home-tool-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.home-tool-card {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 92px;
  gap: 12px;
  padding: 15px;
  color: var(--text-primary);
  background: color-mix(in srgb, var(--bg-panel) 88%, transparent);
  border: 0;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.home-tool-card:hover {
  z-index: 1;
  color: var(--text-accent);
  background: color-mix(in srgb, var(--bg-panel) 88%, var(--accent) 12%);
  box-shadow: inset 3px 0 0 var(--accent);
}

.home-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.home-tool-card:hover .home-card-icon {
  color: var(--text-accent);
  border-color: var(--accent-line);
  background: var(--accent-dim);
}

.home-card-icon svg { width: 14px; height: 14px; }

.home-card-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 3px;
}

.home-card-copy strong {
  overflow: hidden;
  font: 600 11.5px/1.25 var(--font-ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.home-card-copy small {
  overflow: hidden;
  color: var(--text-muted);
  font: 400 9.5px/1.35 var(--font-ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.home-card-arrow {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 11px;
  height: 11px;
  color: var(--text-muted);
  opacity: 0;
  transform: translate(-3px, 3px);
  transition: opacity var(--transition), transform var(--transition);
}

.home-tool-card:hover .home-card-arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.home-footnote {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 28px;
  padding-top: 14px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  font: 400 9.5px/1.4 var(--font-mono);
}

.home-footnote span { display: inline-flex; align-items: center; gap: 7px; }

/* Command palette -------------------------------------------------------- */

.command-palette {
  position: fixed;
  z-index: 3000;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: min(17vh, 150px) 18px 18px;
}

.command-palette.hidden { display: none; }

.command-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 9, 0.72);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.command-dialog {
  position: relative;
  width: min(540px, 100%);
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  box-shadow: var(--shadow-float);
}

/* Command-palette entrance — backdrop fade + dialog settle-in.
   Enter-only (JS toggles .hidden), matching the app-wide house style. */
.command-palette:not(.hidden) .command-backdrop { animation: backdrop-in var(--motion-base) var(--ease-out); }
.command-palette:not(.hidden) .command-dialog   { animation: dialog-in var(--motion-base) var(--ease-out); }

.command-search-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
}

.command-search-row > svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: var(--text-muted);
}

#command-search {
  min-width: 0;
  flex: 1;
  padding: 0;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 14px;
}

#command-search::-webkit-search-cancel-button { display: none; }

.command-results {
  max-height: min(55vh, 440px);
  padding: 6px;
  overflow-y: auto;
}

.command-group-label {
  padding: 8px 9px 5px;
  color: var(--text-muted);
  font: 500 8.5px/1 var(--font-mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.command-item {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 38px;
  gap: 10px;
  padding: 7px 9px;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
}

.command-item:hover,
.command-item.selected {
  color: var(--text-primary);
  background: var(--accent-dim);
}

.command-item.selected { box-shadow: inset 2px 0 0 var(--accent); }

.command-item > svg {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  color: var(--text-muted);
}

.command-item.selected > svg { color: var(--text-accent); }

.command-item-copy {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 1px;
}

.command-item-copy strong { font-size: 11.5px; font-weight: 500; }
.command-item-copy small { color: var(--text-muted); font-size: 9.5px; }

.command-item-tag {
  color: var(--text-muted);
  font: 500 8px/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.command-empty {
  padding: 28px 16px;
  color: var(--text-muted);
  text-align: center;
  font: 400 11px/1.5 var(--font-mono);
}

.command-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 12px;
  color: var(--text-muted);
  background: var(--bg-base);
  border-top: 1px solid var(--border);
  font: 400 8.5px/1 var(--font-mono);
}

.command-footer span { display: inline-flex; align-items: center; gap: 4px; }
.command-footer kbd { min-width: 18px; min-height: 17px; padding: 1px 4px; font-size: 8px; }

/* Responsive shell ------------------------------------------------------- */

@media (max-width: 1180px) {
  .home-tool-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .header-tool .tool-desc { display: none; }
}

@media (max-width: 900px) {
  #command-trigger { min-width: 36px; width: 36px; padding: 0; justify-content: center; }
  #command-trigger span,
  #command-trigger kbd { display: none; }
  .home-tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  #sidebar {
    position: fixed;
    z-index: 50;
    top: 52px;
    bottom: 0;
    left: 0;
    width: 236px;
    opacity: 1;
    transform: translateX(0);
    box-shadow: 18px 0 50px rgba(0, 0, 0, 0.34);
    transition: transform var(--motion-base) var(--ease-out), opacity var(--motion-base) var(--ease-out);
  }

  #sidebar.collapsed {
    width: 236px;
    opacity: 0;
    transform: translateX(-100%);
  }

  body.sidebar-open #sidebar-scrim {
    position: fixed;
    z-index: 45;
    display: block;
    inset: 52px 0 0;
    background: rgba(2, 4, 7, 0.58);
    backdrop-filter: blur(2px);
  }

  .header-meta { display: none; }
  .header-tool { flex: 1; }
  .header-spacer { display: none; }
  .home-scroll { padding: 28px 18px; }
  .home-section-heading span { display: none; }
  .home-footnote { flex-direction: column; gap: 8px; }

  /* Preserve dense desktop tool layouts without clipping controls. */
  .tool-panel:not(.home-panel) .options-row {
    overflow-x: auto;
    flex-wrap: nowrap;
  }
}

@media (max-width: 520px) {
  #header { gap: 7px; padding-inline: 8px; }
  #header .logo { font-size: 12.5px; }
  .header-tool { padding-left: 8px; }
  .header-tool .tool-title { font-size: 10.5px; }
  .home-tool-grid { grid-template-columns: 1fr; }
  .home-tool-card { min-height: 76px; }
  .home-hero h1 { font-size: 27px; }
  .command-palette { padding: 76px 10px 10px; }
  .command-footer { gap: 8px; }
  .command-footer span:first-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .home-tool-card,
  .home-card-arrow,
  #command-trigger { transition: none; }
}