/* ============================================================================
   PADEV Zenith — component layer
   Bootstrap 5.3 supplies behaviour and accessibility plumbing; this layer
   supplies the Zenith material, geometry and lighting taken from the boards.
   Anatomy is shared between Night and Day; material and lighting are not.
   ========================================================================== */

/* ==========================================================================
   1 · Framed board panel — the repeating container of dark/light board 03
   ========================================================================== */
.z-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--surface-panel);
  box-shadow: var(--shadow-elevated), var(--shadow-inset);
  backdrop-filter: blur(var(--glass-blur));
  isolation: isolate;
  overflow: clip;
}

@media (min-width: 48rem) {
  .z-panel { padding: var(--space-24); }
}

/* Luminous rim on hover — glow is composed by hierarchy, never uniform. */
.z-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: var(--border-hairline);
  background: var(--gradient-rim);
  mask:
    linear-gradient(var(--mask-opaque) 0 0) content-box,
    linear-gradient(var(--mask-opaque) 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--duration-card) var(--ease-default);
  pointer-events: none;
}

.z-panel:hover::after,
.z-panel:focus-within::after { opacity: 0.75; }

/* Hierarchy variants: not every panel carries the same weight. */
.z-panel--feature {
  background:
    radial-gradient(38rem 22rem at 88% -20%, var(--color-primary-soft), transparent 65%),
    var(--surface-panel);
  box-shadow: var(--shadow-cinematic), var(--shadow-inset);
}

.z-panel--quiet {
  background: var(--glass-low);
  box-shadow: none;
  backdrop-filter: none;
}

/* Panels that host a Popper-positioned overlay must not clip it. */
.z-panel--overflow { overflow: visible; }

.z-panel--flush { padding: 0; }
.z-panel--flush > .z-panel__head { padding: var(--space-16) var(--space-16) 0; }

.z-panel__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-8);
}

.z-panel__index {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-small);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.z-panel__title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.z-panel__body {
  display: grid;
  gap: var(--space-16);
  align-content: start;
  flex: 1;
}

/* Iconography — board 08: 24px grid, 1.75px stroke, rounded joins, three
   treatments (outline / glass / filled) sharing one geometry. */
.z-ico {
  flex: none;
  width: 1.125rem;
  height: 1.125rem;
  stroke-width: 1.75;
}

.z-ico--sm { width: 1rem; height: 1rem; }
.z-ico--lg { width: 1.5rem; height: 1.5rem; }
.z-ico--xl { width: 1.75rem; height: 1.75rem; }

.z-icobox {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.z-icobox--outline { border: var(--border-hairline) solid var(--border-soft); }

.z-icobox--glass {
  border: var(--border-hairline) solid var(--border-soft);
  background: var(--glass-medium);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-soft);
}

/* Board 08 prints the filled treatment as solid glyphs on the panel itself,
   not as a tinted tile — so only closed-path icons belong on this shelf. */
.z-icobox--filled {
  background: transparent;
  border: var(--border-hairline) solid transparent;
  color: var(--color-primary);
}

.z-icobox--filled .z-ico {
  fill: currentcolor;
  stroke: none;
}

/* ==========================================================================
   2 · Brand lockups
   ========================================================================== */
.z-mark {
  flex: none;
  display: block;
  width: 2rem;
  height: auto;
  filter: drop-shadow(0 2px 10px var(--color-primary-soft));
}

.z-mark--sm { width: 1.5rem; }
.z-mark--lg { width: 3.25rem; }

.z-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  color: var(--color-text);
  min-width: 0;
}

.z-lockup:hover { color: var(--color-text); }

.z-lockup__name {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: var(--weight-bold);
  letter-spacing: 0.02em;
  line-height: 1.15;
  white-space: nowrap;
}

.z-lockup__sub {
  display: none;
  font-size: var(--text-micro);
  letter-spacing: var(--tracking-small);
  color: var(--color-text-muted);
}

@media (min-width: 62rem) {
  .z-lockup__sub { display: block; }
}

.z-lockup__zenith {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-micro);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wordmark);
  text-transform: uppercase;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* The theme control shows the icon of the mode it will switch to. */
.z-theme-icon--night { display: none; }
[data-theme="day"] .z-theme-icon--day { display: none; }
[data-theme="day"] .z-theme-icon--night { display: block; }

/* Board pill: "BOARD 03 — Complete UI Kit" */
.z-boardtag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  border: var(--border-hairline) solid var(--border-lumen);
  border-radius: var(--radius-pill);
  background: var(--glass-medium);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-small);
  white-space: nowrap;
}

/* ==========================================================================
   3 · Navigation shell — board 03 panel 20 / light board 03 panel 05
   ========================================================================== */
.z-navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-block-end: var(--border-hairline) solid var(--border-hair);
  background: var(--glass-dark);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  transition: box-shadow var(--duration-s) var(--ease-default),
    background-color var(--duration-s) var(--ease-default);
}

.z-navbar.is-scrolled { box-shadow: var(--shadow-elevated); }

.z-navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  min-height: 4rem;
}

.z-navbar__nav {
  display: none;
  margin-inline-start: auto;
}

.z-navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.z-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.z-nav a {
  display: block;
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  color: var(--color-text-soft);
  transition: color var(--duration-hover) var(--ease-default),
    background-color var(--duration-hover) var(--ease-default);
}

.z-nav a:hover,
.z-nav a.is-active {
  color: var(--color-text);
  background: var(--glass-control);
}

.z-nav a.is-active { color: var(--color-accent); }

@media (min-width: 62rem) {
  .z-navbar__nav { display: block; }
  .z-nav-toggle { display: none; }
}

.z-navdrawer {
  border-block-start: var(--border-hairline) solid var(--border-hair);
  background: var(--glass-dark);
  backdrop-filter: blur(var(--glass-blur));
}

.z-navdrawer .z-nav {
  flex-direction: column;
  align-items: stretch;
  padding: var(--space-12) 0 var(--space-16);
}

/* ==========================================================================
   4 · Buttons — board 03 panel 01 (5 variants × 6 states) + icon button
   ========================================================================== */
.z-btn {
  --btn-bg: var(--glass-control);
  --btn-fg: var(--color-text);
  --btn-border: var(--border-soft);
  --btn-shadow: none;

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  min-height: 2.25rem;
  padding: var(--space-8) var(--space-16);
  border: var(--border-hairline) solid var(--btn-border);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  box-shadow: var(--btn-shadow);
  background-origin: border-box;
  background-repeat: no-repeat;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-body);
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition:
    transform var(--duration-hover) var(--ease-default),
    box-shadow var(--duration-hover) var(--ease-default),
    background-color var(--duration-hover) var(--ease-default),
    border-color var(--duration-hover) var(--ease-default),
    color var(--duration-hover) var(--ease-default);
}

.z-btn:hover { color: var(--btn-fg); transform: translateY(calc(var(--lift-distance) * -0.25)); }
.z-btn:active { transform: translateY(0) scale(0.985); }
.z-btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.z-btn:disabled,
.z-btn.is-disabled {
  background: var(--surface-disabled);
  border-color: transparent;
  color: var(--color-text-faint);
  box-shadow: none;
  transform: none;
  cursor: not-allowed;
  pointer-events: none;
}

.z-btn--primary {
  --btn-bg: var(--color-primary);
  --btn-fg: var(--color-on-action);
  --btn-border: transparent;
  --btn-shadow: var(--shadow-action);
}

.z-btn--primary:hover {
  --btn-bg: var(--color-primary-strong);
  --btn-shadow: var(--shadow-action-hover);
}

.z-btn--secondary {
  --btn-bg: var(--glass-control);
  --btn-border: var(--border-strong);
}

.z-btn--secondary:hover { --btn-bg: var(--glass-medium); }

.z-btn--outline {
  --btn-bg: transparent;
  --btn-border: var(--border-lumen);
  --btn-fg: var(--color-text);
}

.z-btn--outline:hover {
  --btn-bg: var(--color-primary-soft);
  --btn-fg: var(--color-accent);
}

.z-btn--ghost {
  --btn-bg: transparent;
  --btn-border: transparent;
  --btn-fg: var(--color-text-soft);
}

.z-btn--ghost:hover { --btn-bg: var(--glass-control); --btn-fg: var(--color-text); }

/* The whole ramp is visible at rest — board 03 prints these as saturated
   blue-to-orange fills, not as a pastel blue-violet blend. */
.z-btn--gradient {
  --btn-fg: var(--color-on-action);
  --btn-border: transparent;
  --btn-shadow: var(--shadow-gradient);
  background: var(--gradient-action);
  background-size: 118% 100%;
  background-position: 0% 50%;
  background-origin: border-box;
  background-repeat: no-repeat;
  font-weight: var(--weight-semibold);
  text-shadow: var(--text-shadow-on-gradient);
  transition: background-position var(--duration-s) var(--ease-default),
    filter var(--duration-hover) var(--ease-default),
    transform var(--duration-hover) var(--ease-default),
    box-shadow var(--duration-hover) var(--ease-default);
}

.z-btn--gradient:hover {
  background-position: 100% 50%;
  filter: saturate(1.15) brightness(1.06);
  --btn-shadow: var(--shadow-gradient-hover);
}

.z-btn--sm { min-height: 1.875rem; padding: var(--space-4) var(--space-12); font-size: var(--text-xs); }
.z-btn--lg { min-height: 2.75rem; padding: var(--space-12) var(--space-24); font-size: var(--text-body-lg); }
.z-btn--block { width: 100%; }

.z-btn--icon {
  width: 2.25rem;
  min-height: 2.25rem;
  padding: 0;
  border-radius: var(--radius-sm);
}

.z-btn--icon.z-btn--sm { width: 1.875rem; min-height: 1.875rem; }
.z-btn--pill { border-radius: var(--radius-pill); }

/* State matrix: the boards print hover / focus / active side by side, so the
   showroom needs to render those states statically without a pointer. */
.z-btn.is-hover { transform: translateY(calc(var(--lift-distance) * -0.25)); }
.z-btn--primary.is-hover { --btn-bg: var(--color-primary-strong); --btn-shadow: var(--shadow-action-hover); }
.z-btn--secondary.is-hover { --btn-bg: var(--glass-medium); }
.z-btn--outline.is-hover { --btn-bg: var(--color-primary-soft); --btn-fg: var(--color-accent); }
.z-btn--ghost.is-hover { --btn-bg: var(--glass-control); --btn-fg: var(--color-text); }
.z-btn--gradient.is-hover {
  background-position: 100% 50%;
  filter: saturate(1.15) brightness(1.06);
  --btn-shadow: var(--shadow-gradient-hover);
}

.z-btn.is-focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.z-btn.is-active { transform: scale(0.985); filter: brightness(0.94); }

/* Loading state: the label is replaced by the board's circular spinner. */
.z-btn.is-loading { color: transparent; pointer-events: none; }

.z-btn.is-loading::after {
  content: "";
  position: absolute;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--border-strong);
  border-top-color: var(--color-accent);
  border-radius: var(--radius-pill);
  animation: z-spin var(--duration-l) var(--ease-linear) infinite;
}

.z-btn--primary.is-loading::after,
.z-btn--gradient.is-loading::after {
  border-color: var(--glass-inset);
  border-top-color: var(--color-on-action);
}

/* ==========================================================================
   5 · Form controls — board 03 panels 02–08 / light board 03 panel 02
   ========================================================================== */
.z-field {
  display: grid;
  gap: var(--space-4);
}

.z-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-small);
  color: var(--color-text-soft);
}

.z-input,
.z-select,
.z-textarea {
  width: 100%;
  padding: var(--space-8) var(--space-12);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: var(--glass-control);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.5;
  transition: border-color var(--duration-hover) var(--ease-default),
    box-shadow var(--duration-hover) var(--ease-default),
    background-color var(--duration-hover) var(--ease-default);
}

.z-input::placeholder,
.z-textarea::placeholder { color: var(--color-text-faint); }

.z-input:hover,
.z-select:hover,
.z-textarea:hover { border-color: var(--border-strong); }

.z-input:focus,
.z-select:focus,
.z-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.z-textarea { min-height: 5.5rem; resize: vertical; }

.z-select[multiple] {
  padding-inline-end: var(--space-12);
  background-image: none;
}

.z-select[multiple] option {
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-tight);
}

.z-select {
  appearance: none;
  padding-inline-end: var(--space-32);
  background-image: linear-gradient(45deg, transparent 50%, currentcolor 50%),
    linear-gradient(135deg, currentcolor 50%, transparent 50%);
  background-position: right 1rem center, right 0.7rem center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.z-input:disabled,
.z-select:disabled,
.z-textarea:disabled {
  background: var(--surface-disabled);
  color: var(--color-text-faint);
  cursor: not-allowed;
}

.is-valid .z-input,
.z-input--success { border-color: var(--color-success); }
.is-invalid .z-input,
.z-input--error { border-color: var(--color-error); }

.z-field__hint { font-size: var(--text-micro); color: var(--color-text-muted); }
.z-field__hint--error { color: var(--color-error); }
.z-field__hint--success { color: var(--color-success); }

.z-inputgroup { position: relative; display: flex; align-items: center; }
.z-inputgroup .z-input { padding-inline-end: 2.5rem; }

.z-inputgroup__end {
  position: absolute;
  inset-inline-end: var(--space-12);
  display: inline-flex;
  color: var(--color-text-muted);
  pointer-events: none;
}

/* Actionable trailing control (newsletter submit on boards 05 and 21). */
.z-inputgroup__action {
  position: absolute;
  inset-inline-end: var(--space-4);
  pointer-events: auto;
}

/* Checkbox / radio */
.z-check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--text-body);
  color: var(--color-text-soft);
  cursor: pointer;
}

.z-check input {
  appearance: none;
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  border: var(--border-hairline) solid var(--border-strong);
  border-radius: var(--radius-tight);
  background: var(--glass-control);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: background-color var(--duration-hover) var(--ease-default),
    border-color var(--duration-hover) var(--ease-default);
}

.z-check input[type="radio"] { border-radius: var(--radius-pill); }

.z-check input::after {
  content: "";
  width: 0.55rem;
  height: 0.3rem;
  border-inline-start: 2px solid var(--color-on-action);
  border-block-end: 2px solid var(--color-on-action);
  rotate: -45deg;
  translate: 0 -1px;
  scale: 0;
  transition: scale var(--duration-xs) var(--ease-bounce);
}

.z-check input[type="radio"]::after {
  width: 0.45rem;
  height: 0.45rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-on-action);
  rotate: none;
  translate: 0;
}

.z-check input:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.z-check input:checked::after { scale: 1; }
.z-check input:indeterminate { background: var(--color-primary); border-color: var(--color-primary); }

.z-check input:indeterminate::after {
  width: 0.55rem;
  height: 0;
  border-inline-start: 0;
  border-block-end: 2px solid var(--color-on-action);
  rotate: none;
  translate: 0;
  scale: 1;
}

.z-check input:disabled { background: var(--surface-disabled); border-color: var(--border-hair); cursor: not-allowed; }
.z-check input:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Switch / toggle */
.z-switch { display: inline-flex; align-items: center; gap: var(--space-8); cursor: pointer; }

.z-switch input {
  appearance: none;
  position: relative;
  flex: none;
  width: 2.5rem;
  height: 1.375rem;
  margin: 0;
  border-radius: var(--radius-pill);
  background: var(--surface-disabled);
  border: var(--border-hairline) solid var(--border-soft);
  cursor: pointer;
  transition: background-color var(--duration-s) var(--ease-default),
    border-color var(--duration-s) var(--ease-default);
}

.z-switch input::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 3px;
  width: 1rem;
  height: 1rem;
  translate: 0 -50%;
  border-radius: var(--radius-pill);
  background: var(--switch-thumb);
  box-shadow: var(--shadow-soft);
  transition: inset-inline-start var(--duration-s) var(--ease-default),
    background-color var(--duration-s) var(--ease-default);
}

.z-switch input:checked {
  background: var(--color-primary);
  border-color: transparent;
}

.z-switch input:checked::after {
  inset-inline-start: calc(100% - 1.1875rem);
  background: var(--color-on-action);
}

.z-switch input:disabled { opacity: 0.45; cursor: not-allowed; }
.z-switch input:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Slider */
.z-slider {
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--surface-disabled);
  background-image: var(--gradient-action);
  background-size: var(--slider-fill, 60%) 100%;
  background-repeat: no-repeat;
  cursor: pointer;
}

.z-slider::-webkit-slider-thumb {
  appearance: none;
  width: 1rem;
  height: 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-on-action);
  border: 3px solid var(--color-primary);
  box-shadow: var(--shadow-soft);
}

.z-slider::-moz-range-thumb {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-on-action);
  border: 3px solid var(--color-primary);
}

.z-slider:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 4px; }

/* Progress — linear, striped, circular (board 03 panel 08) */
.z-meter {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--surface-disabled);
  overflow: hidden;
}

.z-meter__fill {
  display: block;
  height: 100%;
  width: var(--meter-value, 50%);
  border-radius: inherit;
  background: var(--gradient-action);
}

.z-meter--striped .z-meter__fill {
  background-image:
    linear-gradient(115deg, var(--glass-inset) 25%, transparent 25%, transparent 50%,
      var(--glass-inset) 50%, var(--glass-inset) 75%, transparent 75%),
    var(--gradient-action);
  background-size: 12px 12px, 100% 100%;
}

.z-dial {
  --dial-value: 72;
  position: relative;
  display: grid;
  place-items: center;
  width: 5.5rem;
  aspect-ratio: 1;
  border-radius: var(--radius-pill);
  background:
    radial-gradient(closest-side, var(--color-canvas) 76%, transparent 77%),
    conic-gradient(var(--color-primary) 0, var(--color-accent) calc(var(--dial-value) * 1%),
      var(--surface-disabled) 0);
}

.z-dial__value {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
}

.z-dial--warm {
  background:
    radial-gradient(closest-side, var(--color-canvas) 76%, transparent 77%),
    conic-gradient(var(--color-warm) 0, var(--color-warm) calc(var(--dial-value) * 1%),
      var(--surface-disabled) 0);
}

/* Value utilities keep the markup free of inline styles. */
.z-v-24 { --meter-value: 24%; --dial-value: 24; --slider-fill: 24%; }
.z-v-45 { --meter-value: 45%; --dial-value: 45; --slider-fill: 45%; }
.z-v-48 { --meter-value: 48%; --dial-value: 48; --slider-fill: 48%; }
.z-v-60 { --meter-value: 60%; --dial-value: 60; --slider-fill: 60%; }
.z-v-65 { --meter-value: 65%; --dial-value: 65; --slider-fill: 65%; }
.z-v-72 { --meter-value: 72%; --dial-value: 72; --slider-fill: 72%; }
.z-v-88 { --meter-value: 88%; --dial-value: 88; --slider-fill: 88%; }
.z-v-100 { --meter-value: 100%; --dial-value: 100; --slider-fill: 100%; }

/* ==========================================================================
   6 · Tabs, accordion, dropdown, pagination
   ========================================================================== */
.z-tabs {
  display: inline-flex;
  gap: var(--space-4);
  padding: var(--space-4);
  border: var(--border-hairline) solid var(--border-hair);
  border-radius: var(--radius-sm);
  background: var(--surface-well);
}

.z-tabs__item {
  padding: var(--space-8) var(--space-16);
  border: 0;
  border-radius: var(--radius-tight);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: background-color var(--duration-hover) var(--ease-default),
    color var(--duration-hover) var(--ease-default);
}

.z-tabs__item:hover { color: var(--color-text); }

.z-tabs__item[aria-selected="true"] {
  background: var(--color-primary);
  color: var(--color-on-action);
  box-shadow: var(--shadow-action);
}

.z-accordion { display: grid; gap: var(--space-8); }

.z-accordion__item {
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-low);
  overflow: hidden;
}

.z-accordion__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-16);
  border: 0;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  text-align: start;
  cursor: pointer;
}

.z-accordion__trigger[aria-expanded="true"] { color: var(--color-accent); }

.z-accordion__icon {
  flex: none;
  transition: rotate var(--duration-s) var(--ease-default);
}

.z-accordion__trigger[aria-expanded="true"] .z-accordion__icon { rotate: 180deg; }

.z-accordion__panel {
  padding: 0 var(--space-16) var(--space-16);
  font-size: var(--text-body);
  color: var(--color-text-muted);
}

.z-menu {
  min-width: 12rem;
  padding: var(--space-8);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-high);
  box-shadow: var(--shadow-elevated);
  backdrop-filter: blur(var(--glass-blur));
}

.z-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  width: 100%;
  padding: var(--space-8) var(--space-12);
  border: 0;
  border-radius: var(--radius-tight);
  background: transparent;
  color: var(--color-text-soft);
  font-size: var(--text-body);
  text-align: start;
  cursor: pointer;
  transition: background-color var(--duration-hover) var(--ease-default),
    color var(--duration-hover) var(--ease-default);
}

.z-menu__item:hover,
.z-menu__item.is-active { background: var(--color-primary-soft); color: var(--color-text); }
.z-menu__sep { height: 1px; margin: var(--space-4) 0; background: var(--border-hair); }

.z-pagination { display: flex; align-items: center; gap: var(--space-4); }

.z-pagination__item {
  display: grid;
  place-items: center;
  min-width: 1.875rem;
  height: 1.875rem;
  padding-inline: var(--space-8);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-tight);
  background: var(--glass-control);
  color: var(--color-text-soft);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}

.z-pagination__item:hover { border-color: var(--border-strong); color: var(--color-text); }

.z-pagination__item[aria-current="page"] {
  background: var(--color-primary);
  border-color: transparent;
  color: var(--color-on-action);
}

.z-pagination__item:disabled { opacity: 0.4; cursor: not-allowed; }

/* ==========================================================================
   7 · Cards — glass, gradient, outline, image, feature, statistic, pricing
   ========================================================================== */
.z-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding: var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-medium);
  box-shadow: var(--shadow-soft);
  transition: transform var(--duration-card) var(--ease-default),
    box-shadow var(--duration-card) var(--ease-default),
    border-color var(--duration-card) var(--ease-default);
}

.z-card:hover {
  transform: translateY(calc(var(--lift-distance) * -1));
  box-shadow: var(--shadow-elevated);
  border-color: var(--border-strong);
}

.z-card__title { font-family: var(--font-display); font-size: var(--text-body-lg); font-weight: var(--weight-semibold); }
.z-card__text { font-size: var(--text-body); color: var(--color-text-muted); }

.z-card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
}

.z-card__link svg { transition: translate var(--duration-hover) var(--ease-default); }
.z-card__link:hover svg { translate: 3px 0; }

.z-card--gradient {
  background: var(--gradient-action);
  background-size: 118% 100%;
  background-origin: border-box;
  background-repeat: no-repeat;
  border-color: transparent;
  color: var(--color-on-action);
  box-shadow: var(--shadow-gradient);
  text-shadow: var(--text-shadow-on-gradient);
}

.z-card--gradient .z-card__text,
.z-card--gradient .z-card__link { color: var(--color-on-action); }

.z-card--outline { background: transparent; border-color: var(--border-strong); box-shadow: none; }

.z-card--image {
  position: relative;
  min-height: 10rem;
  justify-content: flex-end;
  border-color: transparent;
  background:
    linear-gradient(to top, var(--surface-scrim), transparent 60%),
    var(--gradient-brand);
  color: var(--color-on-action);
}

.z-card--image .z-card__text { color: var(--color-on-action); }

/* Feature card — icon tile + title + supporting line (board 03 panel 12) */
.z-feature { align-items: flex-start; text-align: start; }

.z-icontile {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: var(--border-hairline) solid var(--border-lumen);
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  color: var(--color-accent);
  box-shadow: var(--shadow-soft);
}

.z-icontile--warm { border-color: var(--border-lumen-warm); background: var(--color-warning-bg); color: var(--color-warm); }
.z-icontile--violet { border-color: var(--border-lumen); background: var(--glass-tinted); color: var(--color-violet); }
.z-icontile--lg { width: 3rem; height: 3rem; border-radius: var(--radius-lg); }

/* Statistic card — board 03 panel 13 */
.z-stat { display: grid; gap: var(--space-4); }

.z-stat__value {
  font-family: var(--font-display);
  font-size: var(--text-display-2);
  font-weight: var(--weight-bold);
  line-height: 1;
  letter-spacing: var(--tracking-display-2);
  font-variant-numeric: tabular-nums;
}

.z-stat__label { font-size: var(--text-xs); color: var(--color-text-muted); letter-spacing: var(--tracking-small); }
.z-stat__delta { font-size: var(--text-xs); font-weight: var(--weight-medium); color: var(--color-success); }
.z-stat__delta--down { color: var(--color-error); }

/* Pricing — board 03 panel 11, light board 03 panel 06 */
.z-price {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  padding: var(--space-24) var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--glass-medium);
}

.z-price--featured {
  border-color: var(--border-lumen);
  background:
    radial-gradient(24rem 14rem at 50% -30%, var(--color-primary-soft), transparent 70%),
    var(--glass-high);
  box-shadow: var(--shadow-deep);
}

.z-price__flag {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 50%;
  translate: -50% -50%;
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-pill);
  background: var(--gradient-action);
  background-origin: border-box;
  background-repeat: no-repeat;
  color: var(--color-on-action);
  font-size: var(--text-micro);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  white-space: nowrap;
}

.z-price__tier { font-family: var(--font-display); font-size: var(--text-body-lg); font-weight: var(--weight-semibold); }

.z-price__amount {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-display-2);
  font-weight: var(--weight-bold);
  line-height: 1;
}

.z-price__amount span { font-size: var(--text-xs); font-weight: var(--weight-regular); color: var(--color-text-muted); }
.z-price__note { font-size: var(--text-xs); color: var(--color-text-muted); }

.z-list { display: grid; gap: var(--space-8); margin: 0; padding: 0; list-style: none; }

.z-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
  font-size: var(--text-body);
  color: var(--color-text-soft);
}

.z-list svg { flex: none; margin-top: 2px; color: var(--color-success); }

/* ==========================================================================
   8 · Badges, avatars, chips, swatches
   ========================================================================== */
.z-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: 2px var(--space-8);
  border-radius: var(--radius-tight);
  background: var(--color-primary-soft);
  color: var(--color-accent);
  font-size: var(--text-micro);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-small);
  white-space: nowrap;
}

.z-badge--pill { border-radius: var(--radius-pill); padding-inline: var(--space-12); }
.z-badge--solid { background: var(--color-primary); color: var(--color-on-action); }
.z-badge--success { background: var(--color-success-bg); color: var(--color-success); }
.z-badge--warning { background: var(--color-warning-bg); color: var(--color-warning); }
.z-badge--error { background: var(--color-error-bg); color: var(--color-error); }
.z-badge--violet { background: var(--glass-tinted); color: var(--color-violet); }
.z-badge--warm { background: var(--color-warning-bg); color: var(--color-warm); }
.z-badge--count { min-width: 1.25rem; justify-content: center; border-radius: var(--radius-pill); }

.z-avatar {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-canvas);
  background: var(--avatar-1);
  color: var(--color-text-soft);
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  overflow: hidden;
}

.z-avatar--2 { background: var(--avatar-2); }
.z-avatar--3 { background: var(--avatar-3); }
.z-avatar--lg { width: 2.5rem; height: 2.5rem; font-size: var(--text-xs); }

.z-avatar--brand { background: var(--gradient-action); color: var(--color-on-action); }

.z-avatars { display: flex; }
.z-avatars > * + * { margin-inline-start: -0.5rem; }

.z-swatch {
  display: grid;
  gap: var(--space-4);
}

.z-swatch__chip {
  height: 3.25rem;
  border-radius: var(--radius-sm);
  border: var(--border-hairline) solid var(--swatch-ring);
  box-shadow: var(--shadow-soft);
}

.z-swatch__name { font-size: var(--text-micro); font-weight: var(--weight-medium); }
.z-swatch__hex { font-family: var(--font-mono); font-size: var(--text-micro); color: var(--color-text-muted); }

.z-chip-blue { background: var(--zenith-blue); }
.z-chip-blue-day { background: var(--zenith-blue-day); }
.z-chip-cyan { background: var(--zenith-cyan); }
.z-chip-indigo { background: var(--zenith-indigo); }
.z-chip-magenta { background: var(--zenith-magenta); }
.z-chip-orange { background: var(--zenith-orange); }
.z-chip-yellow { background: var(--zenith-yellow); }
.z-chip-violet-soft { background: var(--zenith-violet-soft); }
.z-chip-ink { background: var(--zenith-ink-slate); }
.z-chip-graphite { background: var(--zenith-graphite); }
.z-chip-cool { background: var(--zenith-cool-gray); }
.z-chip-mist { background: var(--zenith-mist-gray); }
.z-chip-cloud { background: var(--zenith-cloud-white); }
.z-chip-night-100 { background: var(--zenith-night-100); }
.z-chip-night-300 { background: var(--zenith-night-300); }
.z-chip-night-500 { background: var(--zenith-night-500); }
.z-chip-success { background: var(--zenith-success); }
.z-chip-error { background: var(--zenith-error); }
.z-chip-warning { background: var(--zenith-warning); }
.z-chip-info { background: var(--zenith-info); }
.z-chip-accent { background: var(--zenith-accent); }
.z-chip-aurora { background: var(--gradient-aurora); }

/* ==========================================================================
   9 · Table, timeline, calendar, command palette, states
   ========================================================================== */
.z-tablewrap { overflow-x: auto; }

.z-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: var(--text-body);
}

.z-table th {
  padding: var(--space-8) var(--space-12);
  text-align: start;
  font-size: var(--text-micro);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-faint);
  border-block-end: var(--border-hairline) solid var(--border-soft);
  white-space: nowrap;
}

.z-table td {
  padding: var(--space-12);
  color: var(--color-text-soft);
  border-block-end: var(--border-hairline) solid var(--border-hair);
  vertical-align: middle;
}

.z-table tbody tr { transition: background-color var(--duration-hover) var(--ease-default); }
.z-table tbody tr:hover { background: var(--glass-control); }
.z-table__num { font-variant-numeric: tabular-nums; color: var(--color-text-faint); }

.z-timeline {
  display: grid;
  gap: var(--space-16);
  margin: 0;
  padding-inline-start: var(--space-16);
  list-style: none;
}

.z-timeline__item { position: relative; padding-inline-start: var(--space-16); }

.z-timeline__item::before {
  content: "";
  position: absolute;
  inset-block-start: 0.35rem;
  inset-inline-start: -0.34rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-soft);
}

.z-timeline__item::after {
  content: "";
  position: absolute;
  inset-block: 1.15rem -1.05rem;
  inset-inline-start: 0;
  width: 1px;
  background: var(--border-soft);
}

.z-timeline__item:last-child::after { display: none; }
.z-timeline__item--done::before { background: var(--color-primary); }
.z-timeline__item--warm::before { border-color: var(--color-warm); }
.z-timeline__title { display: block; font-size: var(--text-body); font-weight: var(--weight-medium); }
.z-timeline__meta { display: block; font-size: var(--text-micro); color: var(--color-text-muted); }

.z-calendar { display: grid; gap: var(--space-8); }

.z-calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  font-size: var(--text-micro);
  text-align: center;
}

.z-calendar__grid span {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: var(--radius-tight);
  color: var(--color-text-soft);
  font-variant-numeric: tabular-nums;
}

.z-calendar__grid .is-head { color: var(--color-text-faint); }
.z-calendar__grid .is-out { color: var(--color-text-faint); opacity: 0.5; }
.z-calendar__grid .is-today { background: var(--color-primary); color: var(--color-on-action); font-weight: var(--weight-semibold); }
.z-calendar__grid .is-range { background: var(--color-primary-soft); color: var(--color-accent); }

.z-command { display: grid; gap: var(--space-4); }

.z-command__row {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  color: var(--color-text-soft);
}

.z-command__row.is-active { background: var(--color-primary-soft); color: var(--color-text); }
.z-command__key { margin-inline-start: auto; font-family: var(--font-mono); font-size: var(--text-micro); color: var(--color-text-faint); }

.z-empty {
  display: grid;
  justify-items: center;
  gap: var(--space-8);
  padding: var(--space-24) var(--space-16);
  text-align: center;
}

.z-empty__art {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-lg);
  border: var(--border-hairline) solid var(--border-soft);
  background: var(--glass-control);
  color: var(--color-text-muted);
}

.z-empty__title { font-size: var(--text-body); font-weight: var(--weight-semibold); }
.z-empty__text { font-size: var(--text-micro); color: var(--color-text-muted); max-width: 16rem; }

/* Skeleton — board 03 panel 35 */
.z-skeleton {
  position: relative;
  border-radius: var(--radius-tight);
  background: var(--skeleton-base);
  overflow: hidden;
}

.z-skeleton--line { height: 0.6rem; }
.z-skeleton--title { height: 0.85rem; width: 60%; }
.z-skeleton--short { width: 40%; }
.z-skeleton--avatar { width: 2.5rem; height: 2.5rem; border-radius: var(--radius-pill); }
.z-skeleton--block { height: 4.5rem; border-radius: var(--radius-sm); }

.z-spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--surface-disabled);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-pill);
  animation: z-spin var(--duration-l) var(--ease-linear) infinite;
}

.z-dots { display: inline-flex; gap: var(--space-4); }

.z-dots span {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  animation: z-bounce var(--duration-l) var(--ease-soft) infinite;
}

.z-dots span:nth-child(2) { animation-delay: 120ms; }
.z-dots span:nth-child(3) { animation-delay: 240ms; }

/* ==========================================================================
   10 · Overlays — modal, drawer, toast, tooltip, popover
   ========================================================================== */
.z-surface {
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-high);
  box-shadow: var(--shadow-elevated);
  backdrop-filter: blur(var(--glass-blur));
}

.z-modal { display: grid; gap: var(--space-12); padding: var(--space-16); }

.z-modal__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-12); }
.z-modal__title { font-family: var(--font-display); font-size: var(--text-body-lg); font-weight: var(--weight-semibold); }
.z-modal__foot { display: flex; justify-content: flex-end; gap: var(--space-8); }

.z-drawer { display: grid; gap: var(--space-12); padding: var(--space-16); height: 100%; }

.z-toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-12);
  padding: var(--space-12);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-high);
  box-shadow: var(--shadow-elevated);
  border-inline-start: 3px solid var(--color-success);
}

.z-toast--error { border-inline-start-color: var(--color-error); }
.z-toast__title { font-size: var(--text-body); font-weight: var(--weight-semibold); }
.z-toast__text { font-size: var(--text-micro); color: var(--color-text-muted); }

.z-tooltip {
  display: inline-block;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-tight);
  background: var(--color-text);
  color: var(--color-canvas);
  font-size: var(--text-micro);
  box-shadow: var(--shadow-elevated);
}

.z-popover { display: grid; gap: var(--space-4); max-width: 15rem; padding: var(--space-12); }
.z-popover__title { font-size: var(--text-body); font-weight: var(--weight-semibold); }
.z-popover__text { font-size: var(--text-micro); color: var(--color-text-muted); }

/* Sidebar / mega menu fragments */
.z-sidebar { display: grid; gap: var(--space-4); }

.z-sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  color: var(--color-text-soft);
}

.z-sidebar__item.is-active { background: var(--color-primary); color: var(--color-on-action); box-shadow: var(--shadow-action); }
.z-sidebar__item .z-badge { margin-inline-start: auto; }

.z-megamenu { display: grid; gap: var(--space-16); grid-template-columns: 1fr; }

@media (min-width: 48rem) {
  .z-megamenu { grid-template-columns: repeat(3, minmax(0, 1fr)) 1.15fr; }
}

.z-megamenu__col { display: grid; gap: var(--space-8); align-content: start; }
.z-megamenu__col a { font-size: var(--text-body); color: var(--color-text-muted); }
.z-megamenu__col a:hover { color: var(--color-text); }

.z-megamenu__promo {
  display: grid;
  gap: var(--space-8);
  align-content: start;
  padding: var(--space-16);
  border-radius: var(--radius-md);
  background:
    radial-gradient(18rem 12rem at 100% 0%, var(--glass-tinted), transparent 70%),
    var(--gradient-action);
  background-origin: border-box;
  background-repeat: no-repeat;
  color: var(--color-on-action);
}

.z-megamenu__promo .z-card__text { color: var(--color-on-action); }

/* ==========================================================================
   11 · Content fragments — testimonial, blog, chart, footer
   ========================================================================== */
.z-quote { display: grid; gap: var(--space-12); }
.z-quote__text { font-size: var(--text-body); color: var(--color-text-soft); font-style: italic; }
.z-quote__who { display: flex; align-items: center; gap: var(--space-8); }
.z-quote__name { font-size: var(--text-body); font-weight: var(--weight-semibold); }
.z-quote__role { font-size: var(--text-micro); color: var(--color-text-muted); }
.z-stars { color: var(--color-warning); letter-spacing: 2px; font-size: var(--text-xs); }

.z-blogcard { display: grid; gap: var(--space-8); }

.z-blogcard__art {
  position: relative;
  aspect-ratio: 16 / 9;
  max-height: 9rem;
  border-radius: var(--radius-sm);
  background:
    radial-gradient(12rem 8rem at 30% 20%, var(--color-accent-soft), transparent 70%),
    var(--gradient-brand);
  overflow: hidden;
}

.z-blogcard__art--warm {
  background:
    radial-gradient(12rem 8rem at 70% 30%, var(--color-warning-bg), transparent 70%),
    var(--gradient-mark-warm);
}

.z-blogcard__tag {
  position: absolute;
  inset-block-start: var(--space-8);
  inset-inline-start: var(--space-8);
}

.z-chart { display: grid; gap: var(--space-8); }

.z-chart__area {
  height: 6rem;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(to top, var(--color-primary-soft), transparent),
    repeating-linear-gradient(to right, var(--chart-grid) 0 1px, transparent 1px 25%);
  clip-path: polygon(0 82%, 12% 62%, 26% 74%, 38% 40%, 52% 55%, 66% 24%, 80% 42%, 100% 12%, 100% 100%, 0 100%);
}

.z-chart__bars { display: flex; align-items: flex-end; gap: var(--space-4); height: 6rem; }

.z-chart__bars i {
  flex: 1;
  border-radius: var(--radius-tight) var(--radius-tight) 0 0;
  background: var(--gradient-action);
  height: var(--bar, 50%);
}

.z-bar-30 { --bar: 30%; }
.z-bar-45 { --bar: 45%; }
.z-bar-55 { --bar: 55%; }
.z-bar-40 { --bar: 40%; }
.z-bar-70 { --bar: 70%; }
.z-bar-60 { --bar: 60%; }
.z-bar-85 { --bar: 85%; }
.z-bar-100 { --bar: 100%; }

.z-legend { display: grid; gap: var(--space-4); font-size: var(--text-micro); }
.z-legend__row { display: flex; align-items: center; gap: var(--space-8); }

.z-legend__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.z-legend__dot--violet { background: var(--color-violet); }
.z-legend__dot--warm { background: var(--color-warm); }
.z-legend__value { margin-inline-start: auto; font-variant-numeric: tabular-nums; color: var(--color-text-muted); }

.z-footerlinks { display: grid; gap: var(--space-8); align-content: start; }
.z-footerlinks__head { font-size: var(--text-micro); text-transform: uppercase; letter-spacing: var(--tracking-eyebrow); color: var(--color-text-faint); }
.z-footerlinks a { font-size: var(--text-body); color: var(--color-text-muted); }
.z-footerlinks a:hover { color: var(--color-text); }

.z-social { display: flex; gap: var(--space-8); }

.z-social a {
  display: grid;
  place-items: center;
  width: 1.875rem;
  height: 1.875rem;
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.z-social a:hover { border-color: var(--border-lumen); color: var(--color-accent); }

/* ==========================================================================
   12 · Specimens — typography, radius, shadow, glass, gradient displays
   ========================================================================== */
.z-specimen {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-16);
  padding-block: var(--space-8);
  border-block-end: var(--border-hairline) solid var(--border-hair);
}

.z-specimen:last-child { border-block-end: 0; }
.z-specimen__meta { flex: none; font-family: var(--font-mono); font-size: var(--text-micro); color: var(--color-text-faint); }

.z-aa {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: var(--weight-medium);
  line-height: 1;
}

.z-radius-demo { display: grid; gap: var(--space-4); justify-items: center; }

.z-radius-demo__box {
  width: 100%;
  max-width: 5.5rem;
  aspect-ratio: 1;
  border: var(--border-hairline) solid var(--border-strong);
  background: var(--glass-medium);
}

.z-r-4 { border-radius: var(--radius-tight); }
.z-r-8 { border-radius: var(--radius-sm); }
.z-r-12 { border-radius: var(--radius-md); }
.z-r-16 { border-radius: var(--radius-lg); }
.z-r-24 { border-radius: var(--radius-xl); }
.z-r-full { border-radius: var(--radius-pill); }

.z-shadow-demo {
  height: 4rem;
  border-radius: var(--radius-md);
  border: var(--border-hairline) solid var(--border-soft);
  background: var(--glass-medium);
}

.z-sh-soft { box-shadow: var(--shadow-soft); }
.z-sh-elevated { box-shadow: var(--shadow-elevated); }
.z-sh-deep { box-shadow: var(--shadow-deep); }
.z-sh-cinematic { box-shadow: var(--shadow-cinematic); }

.z-glass-demo {
  height: 4.5rem;
  border-radius: var(--radius-md);
  border: var(--border-hairline) solid var(--border-soft);
  backdrop-filter: blur(var(--glass-blur));
}

.z-gl-low { background: var(--glass-low); }
.z-gl-medium { background: var(--glass-medium); }
.z-gl-high { background: var(--glass-high); }
.z-gl-dark { background: var(--glass-dark); }
.z-gl-tinted { background: var(--glass-tinted); }

.z-aurora-bar {
  height: 3rem;
  background-size: 100% 100%;
  border-radius: var(--radius-pill);
  background: var(--gradient-aurora);
  filter: blur(0.5px) saturate(120%);
  box-shadow: var(--shadow-deep);
}

.z-spacing-scale { display: flex; align-items: flex-end; gap: var(--space-8); }

.z-spacing-scale i {
  display: block;
  width: var(--step);
  height: var(--step);
  border-radius: var(--radius-tight);
  background: var(--gradient-action);
  opacity: 0.85;
}

.z-s-4 { --step: 4px; }
.z-s-8 { --step: 8px; }
.z-s-12 { --step: 12px; }
.z-s-16 { --step: 16px; }
.z-s-24 { --step: 24px; }
.z-s-32 { --step: 32px; }
.z-s-48 { --step: 48px; }
.z-s-64 { --step: 64px; }

.z-gridbars { display: grid; gap: 3px; grid-auto-flow: column; height: 3.5rem; }

.z-gridbars i {
  border-radius: var(--radius-tight);
  background: var(--color-primary-soft);
  border: var(--border-hairline) solid var(--border-soft);
}

/* ==========================================================================
   13 · Hero focal — the Zenith brand object (interim owner-derived asset)
   ========================================================================== */
.z-focal {
  position: relative;
  display: grid;
  place-items: center;
  isolation: isolate;
}

.z-focal__art {
  grid-area: 1 / 1;
  width: 100%;
  max-width: 100%;
  height: auto;
  mix-blend-mode: screen;
  mask-image: radial-gradient(closest-side, var(--mask-opaque) 58%, transparent 100%);
}

/* Night and Day use different owner-derived renders, not one tinted image. */
.z-focal__art--day { display: none; mix-blend-mode: multiply; }
[data-theme="day"] .z-focal__art--night { display: none; }
[data-theme="day"] .z-focal__art--day { display: block; }

.z-focal__halo {
  position: absolute;
  inset: 10%;
  z-index: -1;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
  filter: blur(64px);
  opacity: calc(var(--glow-intensity) * 0.6);
  animation: z-halo-breathe calc(var(--loop-float) * 2) var(--ease-soft) infinite;
}

/* The render carries the board's own black (Night) or white (Day) field.
   A soft canvas-coloured plate lets the blend mode erase it without leaving
   a visible rectangle over the aurora. */
.z-focal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(closest-side, var(--color-canvas) 55%, transparent 100%);
}

/* ==========================================================================
   14 · Board picker — the rail pill becomes the navigation between boards
   ========================================================================== */
.z-boardpicker { position: relative; }

.z-boardtag--button {
  cursor: pointer;
  color: var(--color-text);
  max-width: 16rem;
}

.z-boardtag--button:hover { border-color: var(--color-accent); }

.z-boardtag__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.z-boardmenu {
  min-width: 17rem;
  max-height: min(70vh, 30rem);
  overflow-y: auto;
}

.z-boardmenu__head {
  display: block;
  padding: var(--space-4) var(--space-12) var(--space-8);
  font-size: var(--text-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--color-text-faint);
}

.z-menu__tag {
  flex: none;
  min-width: 4.25rem;
  font-family: var(--font-display);
  font-size: var(--text-micro);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-small);
  color: var(--color-accent);
}

.z-menu__item[aria-current="page"] { background: var(--color-primary-soft); color: var(--color-text); }

@media (max-width: 61.99rem) {
  .z-boardtag--button { max-width: 9.5rem; }
  .z-boardtag--button .z-boardtag__label { font-size: var(--text-micro); }
}

/* ==========================================================================
   15 · Marketing surfaces — hero chips, logo marquee, showcase, CTA band
   ========================================================================== */
.z-focal--hero { --float-distance: 14px; }

.z-chipstack {
  position: absolute;
  inset-block-end: 4%;
  inset-inline-start: 0;
  display: grid;
  gap: var(--space-8);
  pointer-events: none;
}

.z-chipstack__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-12);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-pill);
  background: var(--glass-high);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-elevated);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  white-space: nowrap;
}

@media (max-width: 61.99rem) {
  .z-chipstack { display: none; }
}

.z-logoword {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-h3);
  color: var(--color-text-faint);
  white-space: nowrap;
}

.z-shot {
  display: grid;
  gap: var(--space-12);
  color: var(--color-text);
}

.z-shot:hover { color: var(--color-text); }

.z-shot__frame {
  display: block;
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--surface-well);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
}

.z-shot__frame img { width: 100%; height: auto; }
.z-shot__meta { display: grid; gap: 2px; }

.z-ctaband {
  display: grid;
  gap: var(--space-24);
  align-items: center;
  overflow: hidden;
}

@media (min-width: 62rem) {
  .z-ctaband { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
}

.z-ctaband__copy { display: grid; gap: var(--space-16); }

.z-ctaband__art {
  position: relative;
  display: grid;
  place-items: center;
}

.z-ctaband__art img {
  width: 100%;
  max-width: 26rem;
  height: auto;
  grid-area: 1 / 1;
  mix-blend-mode: screen;
  mask-image: radial-gradient(closest-side, var(--mask-opaque) 58%, transparent 100%);
}

.z-newsletter { margin-block-start: var(--board-gap); }

.z-newsletter__grid {
  display: grid;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 48rem) {
  .z-newsletter__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 20rem); }
}

/* ==========================================================================
   16 · Illustration tiles — owner renders blended per mode
   ========================================================================== */
.z-illus {
  position: relative;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.z-illus__art {
  grid-area: 1 / 1;
  width: 100%;
  height: auto;
  mix-blend-mode: screen;
  mask-image: radial-gradient(closest-side, var(--mask-opaque) 66%, transparent 100%);
}

.z-illus__art--day { display: none; mix-blend-mode: multiply; }
[data-theme="day"] .z-illus__art--night { display: none; }
[data-theme="day"] .z-illus__art--day { display: block; }

.z-illus--tall { min-height: 10rem; }
.z-illuscard { gap: var(--space-12); }

/* ==========================================================================
   17 · Authentication — split composition of board 04
   ========================================================================== */
.z-authsplit {
  display: grid;
  gap: var(--board-gap);
  align-items: stretch;
}

@media (min-width: 62rem) {
  .z-authsplit { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

.z-authsplit__aside .z-panel__body { gap: var(--space-24); }
.z-authsplit__form { display: grid; gap: var(--space-12); align-content: start; }

.z-authsplit__divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-12);
  font-size: var(--text-micro);
  color: var(--color-text-faint);
}

.z-authsplit__divider::before,
.z-authsplit__divider::after {
  content: "";
  height: 1px;
  background: var(--border-soft);
}

.z-otp { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: var(--space-8); }

.z-otp__cell {
  text-align: center;
  font-family: var(--font-display);
  font-size: var(--text-h3);
  padding-inline: 0;
}

/* ==========================================================================
   18 · Brand tiles and scale specimens
   ========================================================================== */
.z-logotile {
  display: grid;
  place-items: center;
  gap: var(--space-8);
  min-height: 8rem;
  padding: var(--space-24);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--surface-well);
}

.z-logotile--stack { align-content: center; }
.z-logotile img { width: 3.5rem; height: auto; }
.z-logotile--dark { background: var(--zenith-night-100); }
.z-logotile--light { background: var(--zenith-white); }

.z-logotile--glass {
  background: var(--glass-medium);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-deep);
}

.z-logotile--mono { background: var(--surface-well); }
.z-logotile--mono img { filter: grayscale(1) contrast(1.1); }

.z-scaledemo { display: grid; place-items: center; }
.z-scaledemo img { height: auto; }
.z-scaledemo--16 img { width: 16px; }
.z-scaledemo--24 img { width: 24px; }
.z-scaledemo--32 img { width: 32px; }
.z-scaledemo--48 img { width: 48px; }
.z-scaledemo--64 img { width: 64px; }

/* Bulleted variant of the canonical list, used by the reference boards. */
.z-list--dot li { position: relative; padding-inline-start: var(--space-16); }

.z-list--dot li::before {
  content: "";
  position: absolute;
  inset-block-start: 0.55em;
  inset-inline-start: 0;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

/* ==========================================================================
   19 · Grid-child corrections
   A grid stretches its children by default; pills, tab strips and inline
   badges must keep their intrinsic width.
   ========================================================================== */
.z-stack > .z-boardtag,
.z-stack > .z-tabs,
.z-panel__body > .z-boardtag {
  justify-self: start;
}

/* Concept previews share one poster ratio so a row never staircases. */
.z-shot__frame img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
}

/* A portrait illustration must not outgrow the panel that hosts it. */
.z-illus--tall .z-illus__art {
  width: auto;
  max-height: 20rem;
  justify-self: center;
}

.z-logoword { font-size: var(--text-body-lg); }

@media (min-width: 62rem) {
  .z-logoword { font-size: var(--text-h3); }
}

/* ==========================================================================
   20 · Capability rail — the small labelled cards that flank a hero object
   on the AI, software and product concepts (dark board 02).
   Anatomy: a 2px gradient spine, then a two-line label on glass.
   ========================================================================== */
.z-rail {
  display: grid;
  gap: var(--space-24);
  align-content: center;
}

.z-rail__item {
  display: block;
  padding: var(--space-12) var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-inline-start: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  background: var(--glass-high);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-elevated);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1.35;
  white-space: nowrap;
  transition: transform var(--duration-card) var(--ease-default),
    box-shadow var(--duration-card) var(--ease-default);
}

.z-rail__item:hover {
  transform: translateX(calc(var(--lift-distance) * -0.5));
  box-shadow: var(--shadow-deep);
}

/* The spine steps through the aurora ramp down the rail. */
.z-rail__item:nth-child(2) { border-inline-start-color: var(--color-violet); }
.z-rail__item:nth-child(3) { border-inline-start-color: var(--zenith-pink); }
.z-rail__item:nth-child(4) { border-inline-start-color: var(--color-warm); }

.z-rail__item span {
  display: block;
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

/* Anchored to the focal object rather than the copy column, so it reads as
   part of the artwork the way the reference concepts do. */
.z-rail--float {
  position: absolute;
  inset-block: 8% auto;
  inset-inline-end: 0;
  z-index: 2;
}

@media (max-width: 74.99rem) {
  .z-rail--float { display: none; }
}

/* Artwork delivered with a real alpha channel stands on its own: no blend
   mode, no radial mask and no canvas-coloured plate behind it. */
.z-focal--art::before { display: none; }

.z-focal--art .z-focal__art {
  mix-blend-mode: normal;
  mask-image: none;
  max-width: 100%;
}

/* Gallery cards are links to the template they preview. */
.z-conceptcard { color: inherit; }
.z-conceptcard:hover { color: inherit; }
.z-conceptcard:hover .z-shot__frame { border-color: var(--border-lumen); }
.z-conceptfoot { margin-top: auto; padding-top: var(--space-4); }

/* ==========================================================================
   21 · Template-page pieces — used by the standalone landing templates, which
   present as their own product site rather than as a Zenith board.
   ========================================================================== */
.z-metricbar { margin-block-start: var(--space-24); }

.z-splitfeature {
  display: grid;
  gap: var(--board-gap);
}

@media (min-width: 62rem) {
  .z-splitfeature { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

.z-code {
  margin: 0;
  padding: var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: var(--surface-code);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  overflow-x: auto;
}

.z-ctaband__art--plain img {
  mix-blend-mode: normal;
  mask-image: none;
}

/* ==========================================================================
   22 · Logo strip — the divided customer row that closes the SaaS first
   viewport on dark board 02 · cell 01 and on the owner HD concept render.
   Anatomy: hairline rules above and below, hairline separators between
   items, wordmarks set in the display face at faint weight.
   ========================================================================== */
.z-logostrip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  row-gap: var(--space-16);
  margin-block-start: var(--space-24);
  padding-block: var(--space-24);
  border-block: var(--border-hairline) solid var(--border-hair);
}

.z-logostrip__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  padding-inline: clamp(var(--space-16), 3vw, var(--space-48));
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--duration-hover) var(--ease-default);
}

.z-logostrip__item + .z-logostrip__item {
  border-inline-start: var(--border-hairline) solid var(--border-hair);
}

.z-logostrip__item:hover { color: var(--color-text); }

/* The glyph keeps the icon tile's luminous rim without its filled plate, so
   the row stays quieter than the feature grid above it. */
.z-logostrip__mark {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

/* Two-column proof panel used beside the platform dashboard fragment. */
.z-kpirow {
  display: grid;
  gap: var(--space-16);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* ==========================================================================
   23 · SaaS concept composition — the pieces that keep concept 01 from
   reading like concept 02. Board 02 gives each concept a different first
   viewport device (SaaS: a floating revenue card on the dashboard; AI: a
   capability rail), and board 05 is used through a different section order.
   ========================================================================== */

/* Alternating feature rows: the copy stays first in the DOM, the panel moves
   to the leading column on every second row. */
.z-featurecopy {
  display: grid;
  gap: var(--space-16);
  align-content: center;
}

@media (min-width: 62rem) {
  .z-splitfeature--reverse > :first-child { order: 2; }
  .z-splitfeature--reverse > :last-child { order: 1; }
}

/* The revenue card that floats over the dashboard render on light board 02 ·
   cell 02. Anchored to the artwork, so it reads as part of the device. */
.z-floatstat {
  position: absolute;
  inset-block-end: 8%;
  inset-inline-start: 0;
  z-index: 2;
  display: grid;
  gap: 2px;
  padding: var(--space-12) var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-high);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-elevated);
}

@media (max-width: 74.99rem) {
  .z-floatstat { display: none; }
}

/* Guarantee row: three quiet inline claims, deliberately not a card grid. */
.z-claims {
  display: grid;
  gap: var(--space-24);
  margin-block-start: var(--space-24);
  padding-block-start: var(--space-24);
  border-block-start: var(--border-hairline) solid var(--border-hair);
}

@media (min-width: 48rem) {
  .z-claims { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.z-claim {
  display: flex;
  align-items: flex-start;
  gap: var(--space-12);
}

/* ==========================================================================
   24 · Per-concept pieces. Board 02 gives every landing concept a different
   first viewport and a different proof device; these are the parts that keep
   concepts 03–07 from converging on the concept 01 or 02 skeleton.
   ========================================================================== */

/* --- 03 Agency: the awards band under the hero (dark 02 · cell 03) --------- */
.z-statband {
  display: grid;
  gap: var(--space-24);
}

@media (min-width: 48rem) {
  .z-statband { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 62rem) {
  .z-statband { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .z-statband__item + .z-statband__item {
    border-inline-start: var(--border-hairline) solid var(--border-hair);
    padding-inline-start: var(--space-24);
  }
}

.z-statband__item {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

/* Ring icon: the outlined circular badge the agency and software cells use
   instead of the filled square tile of concepts 01 and 02. */
.z-icontile--ring {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-pill);
  border-color: var(--border-lumen);
  background: transparent;
  box-shadow: none;
}

/* --- 03 Agency: the numbered capability index ----------------------------- */
.z-indexlist {
  display: grid;
  border-block-start: var(--border-hairline) solid var(--border-hair);
}

.z-indexlist__row {
  display: grid;
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-24) var(--space-16);
  margin-inline: calc(var(--space-16) * -1);
  border-block-end: var(--border-hairline) solid var(--border-hair);
  color: var(--color-text);
  transition: background-color var(--duration-hover) var(--ease-default);
}

@media (min-width: 48rem) {
  .z-indexlist__row {
    grid-template-columns: 3.5rem minmax(0, 1fr) minmax(0, 18rem) auto;
    gap: var(--space-24);
  }
}

.z-indexlist__row:hover { color: var(--color-text); background: var(--glass-control); }

.z-indexlist__num {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  font-variant-numeric: tabular-nums;
  color: var(--color-accent);
}

.z-indexlist__title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-heading);
}

.z-indexlist__meta { color: var(--color-text-muted); font-size: var(--text-sm); }

/* --- 05 Software: the three link cards beneath the isometric hero --------- */
.z-linkcard {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-16);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--surface-panel);
  color: var(--color-text);
  transition: border-color var(--duration-card) var(--ease-default),
    transform var(--duration-card) var(--ease-default);
}

.z-linkcard:hover {
  color: var(--color-text);
  border-color: var(--border-lumen);
  transform: translateY(calc(var(--lift-distance) * -1));
}

/* A menu used as a board column sizes to its own content instead of
   stretching to the tallest panel in the row. */
.z-board > .z-menu { align-self: start; }

.z-linkcard__body { display: grid; gap: 2px; flex: 1 1 auto; min-width: 0; }
.z-linkcard__chev { flex: none; color: var(--color-text-faint); }

/* --- 06 Product launch: the countdown band ------------------------------- */
.z-countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-12);
}

.z-countdown__cell {
  display: grid;
  gap: var(--space-4);
  justify-items: center;
  padding: var(--space-16) var(--space-8);
  border: var(--border-hairline) solid var(--border-soft);
  border-radius: var(--radius-md);
  background: var(--glass-high);
}

.z-countdown__value {
  font-family: var(--font-display);
  font-size: var(--text-display-2);
  font-weight: var(--weight-bold);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.z-countdown__label {
  font-size: var(--text-micro);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* --- 06 Product launch: the specification sheet --------------------------- */
.z-specs { display: grid; margin: 0; }

.z-specs__row {
  display: grid;
  gap: var(--space-4);
  padding-block: var(--space-12);
  border-block-end: var(--border-hairline) solid var(--border-hair);
}

@media (min-width: 48rem) {
  .z-specs__row {
    grid-template-columns: minmax(0, 13rem) minmax(0, 1fr);
    gap: var(--space-24);
    align-items: baseline;
  }
}

.z-specs__key { color: var(--color-text-muted); font-size: var(--text-sm); }

/* --- 07 App: store badges. Placeholder marks — the official Apple and
   Google badges are licensed artwork and must replace these. --------------- */
.z-storebadge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-8) var(--space-16);
  border: var(--border-hairline) solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--glass-control);
  color: var(--color-text);
  transition: border-color var(--duration-hover) var(--ease-default);
}

.z-storebadge:hover { color: var(--color-text); border-color: var(--color-accent); }
.z-storebadge__text { display: grid; text-align: start; }
.z-storebadge__kicker { font-size: var(--text-micro); color: var(--color-text-muted); }

.z-storebadge__name {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  line-height: 1.2;
}

/* --- 04 Portfolio: the work mosaic caption -------------------------------- */
/* Captions sit under their own cover, so a wide tile beside a narrow one
   does not push the narrow tile's caption to the bottom of the row. */
.z-workcard { display: grid; gap: var(--space-12); align-content: start; color: inherit; }
.z-workcard:hover { color: inherit; }
.z-workcard:hover .z-illus { border-color: var(--border-lumen); }

.z-workcard__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-8);
}

.z-illus--cover {
  border: var(--border-hairline) solid var(--border-soft);
  background: var(--surface-well);
  aspect-ratio: 4 / 3;
  max-height: 20rem;
  transition: border-color var(--duration-card) var(--ease-default);
}

.z-illus--cover .z-illus__art { width: 100%; height: 100%; object-fit: cover; }