html {
  scroll-behavior: smooth;
}

body.canvas-shell-page {
  --canvas-gap: 16px;
  margin: 0;
  padding: var(--canvas-gap);
  box-sizing: border-box;
  min-height: 100vh;
}

.canvas-shell {
  --regions-gap: 0px;
  --canvas-region-radius: 16px;
  --canvas-border-width: 1px;
  --canvas-region-header-min-height: 92px;
  --canvas-region-footer-min-height: 92px;
  --canvas-region-sidemenu-width: 92px;
  --canvas-shell-tint-soft: transparent;
  --canvas-shell-tint-strong: transparent;
  --canvas-section-gap: 16px;
  --canvas-card-padding: 20px;
  --canvas-card-inner-gap: 12px;
  --canvas-surface-radius: 16px;
  --canvas-control-radius: 15px;
  --canvas-font-size: 15px;
  --canvas-line-height: 1.55;
  display: grid;
  grid-template-columns: var(--canvas-region-sidemenu-width) minmax(0, 1fr);
  grid-template-areas:
    "side header"
    "side body"
    "side footer";
  grid-template-rows:
    minmax(var(--canvas-region-header-min-height), auto)
    minmax(0, 1fr)
    minmax(var(--canvas-region-footer-min-height), auto);
  gap: var(--regions-gap);
  box-sizing: border-box;
  width: 100%;
  padding: 0;
  align-items: stretch;
  align-content: start;
  min-height: calc(100vh - (var(--canvas-gap) * 2));
  font-size: var(--canvas-font-size);
  line-height: var(--canvas-line-height);
  border: var(--canvas-border-width) solid var(--color-card-border);
  border-radius: calc(var(--canvas-surface-radius) + 4px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.44)),
    linear-gradient(135deg, var(--canvas-shell-tint-strong), transparent 42%);
}

.canvas-shell[data-body-scroll-locked="true"] {
  height: calc(100vh - (var(--canvas-gap) * 2));
  max-height: calc(100vh - (var(--canvas-gap) * 2));
  overflow: hidden;
}

.canvas-region,
.canvas-card,
.canvas-layout-inspector,
.canvas-layout-toggle {
  border: 1px solid var(--color-card-border);
  background: var(--color-card);
}

.canvas-region {
  --canvas-region-tint-soft: transparent;
  --canvas-region-tint-strong: transparent;
  margin: 0;
  min-width: 0;
  display: grid;
  align-self: stretch;
  border-radius: var(--canvas-region-radius);
  gap: var(--canvas-card-inner-gap);
  box-shadow: none;
  background:
    linear-gradient(135deg, var(--canvas-region-tint-soft), transparent 62%),
    var(--color-card);
}

.canvas-region[data-pinned="true"] {
  position: sticky;
  z-index: 6;
}

.canvas-region[data-pinned="true"][data-pin-edge="top"] {
  top: var(--canvas-gap);
  align-self: start;
}

.canvas-region[data-pinned="true"][data-pin-edge="bottom"] {
  bottom: var(--canvas-gap);
  align-self: end;
}

.canvas-region[hidden] {
  display: none !important;
}

.canvas-card,
.canvas-layout-inspector,
.canvas-layout-toggle {
  border-radius: var(--canvas-surface-radius);
  box-shadow: var(--shadow-base);
}

.canvas-region--sidemenu {
  grid-area: side;
  position: static;
  padding: var(--canvas-region-padding-y, 14px) var(--canvas-region-padding-x, 12px);
  align-content: start;
  justify-items: center;
  min-height: 0;
  align-self: stretch;
}

.canvas-region--sidemenu[data-pinned="true"] {
  align-self: start;
  height: calc(100vh - (var(--canvas-gap) * 2));
  min-height: calc(100vh - (var(--canvas-gap) * 2));
  max-height: calc(100vh - (var(--canvas-gap) * 2));
  box-sizing: border-box;
  overflow: auto;
}

.canvas-region--header,
.canvas-region--footer {
  padding: var(--canvas-region-padding-y, 0px) var(--canvas-region-padding-x, 14px);
  min-height: var(--canvas-region-min-height, 92px);
}

.canvas-region--header {
  grid-area: header;
}

.canvas-region--body {
  grid-area: body;
  padding: var(--canvas-region-padding-y, 0px) var(--canvas-region-padding-x, 16px);
  min-height: var(--canvas-region-min-height, clamp(20rem, 58vh, 36rem));
  background:
    linear-gradient(135deg, var(--canvas-region-tint-soft), transparent 62%),
    var(--color-card);
}

.canvas-shell[data-body-scroll-locked="true"] .canvas-region--body {
  min-height: 0;
  overflow: hidden;
}

.canvas-region--footer {
  grid-area: footer;
}

.canvas-region[data-merge-top="true"] {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  border-top-width: 0;
}

.canvas-region[data-merge-bottom="true"] {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-width: 0;
}

.canvas-shell__nav {
  display: grid;
  gap: 0.7rem;
  justify-items: center;
}

.canvas-shell__nav-item {
  width: 3rem;
  height: 3rem;
  border-radius: var(--canvas-control-radius);
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.55);
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.canvas-shell__nav-item:hover,
.canvas-shell__nav-item[data-active="true"] {
  transform: translateY(-1px);
  border-color: rgba(103, 209, 156, 0.34);
  background: rgba(103, 209, 156, 0.12);
}

.canvas-section {
  --canvas-section-tint-soft: transparent;
  --canvas-section-tint-strong: transparent;
  --canvas-section-border: rgba(35, 52, 43, 0.12);
  display: grid;
  align-self: start;
  align-content: start;
  gap: var(--canvas-card-inner-gap);
  padding: clamp(0.9rem, 1vw + 0.5rem, 1.15rem);
  border: 1px solid var(--canvas-section-border);
  border-radius: var(--canvas-region-radius);
  background:
    linear-gradient(135deg, var(--canvas-section-tint-soft), transparent 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(249, 252, 250, 0.76));
  outline: none;
}

.canvas-region__sections {
  display: grid;
  box-sizing: border-box;
  min-width: 0;
  align-content: start;
  grid-auto-rows: max-content;
  gap: var(--canvas-region-section-gap, var(--canvas-section-gap));
  padding: var(--canvas-region-section-gap, var(--canvas-section-gap));
  margin-block: calc(var(--canvas-region-padding-y, 0px) * -1);
  margin-inline: calc(var(--canvas-region-padding-x, 0px) * -1);
}

.canvas-shell[data-body-scroll-locked="true"] .canvas-region--body > .canvas-region__sections {
  min-height: 0;
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  overflow-x: hidden;
}

.canvas-section:focus-visible {
  box-shadow: 0 0 0 2px rgba(103, 209, 156, 0.22);
}

.canvas-section__header {
  display: grid;
  gap: 0;
  padding-bottom: 0;
}

.canvas-section__title,
.canvas-card__title,
.canvas-layout-inspector__title {
  margin: 0;
  color: var(--color-text);
}

.canvas-section__description,
.canvas-card__text,
.canvas-shell__loader,
.canvas-layout-inspector__eyebrow,
.canvas-layout-inspector__note,
.canvas-layout-inspector__detail dt,
.canvas-layout-inspector__dump,
.canvas-layout-inspector__control-label {
  margin: 0;
  color: var(--color-text-muted);
}

.canvas-section__cards {
  position: relative;
  display: grid;
  grid-template-columns: repeat(var(--canvas-layout-columns, 48), minmax(0, 1fr));
  grid-auto-rows: calc(var(--canvas-layout-row-height, 6) * 1px);
  gap: calc(var(--canvas-layout-gap, 0) * 1px);
  align-items: start;
  align-content: start;
}

.canvas-card {
  position: relative;
  min-width: 0;
  padding: var(--canvas-card-padding);
  display: grid;
  gap: var(--canvas-card-inner-gap);
  align-content: start;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.42)),
    var(--color-card);
  transition: box-shadow 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.canvas-card__resize-handle {
  position: absolute;
  right: 0.55rem;
  bottom: 0.55rem;
  width: 1.15rem;
  height: 1.15rem;
  border: 0;
  padding: 0;
  border-radius: 0.35rem;
  background:
    linear-gradient(135deg, transparent 30%, rgba(16, 33, 24, 0.16) 30%, rgba(16, 33, 24, 0.16) 44%, transparent 44%),
    linear-gradient(135deg, transparent 52%, rgba(16, 33, 24, 0.28) 52%, rgba(16, 33, 24, 0.28) 67%, transparent 67%),
    rgba(255, 255, 255, 0.92);
  cursor: nwse-resize;
  z-index: 7;
}

.canvas-align-edge-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 8;
}

.canvas-align-edge {
  position: absolute;
  background: rgba(190, 36, 36, 0.95);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.34);
}

.canvas-align-edge--left,
.canvas-align-edge--right {
  top: 0;
  bottom: 0;
  width: 2px;
}

.canvas-align-edge--left {
  left: 0;
}

.canvas-align-edge--right {
  right: 0;
}

.canvas-align-edge--top,
.canvas-align-edge--bottom {
  left: 0;
  right: 0;
  height: 2px;
}

.canvas-align-edge--top {
  top: 0;
}

.canvas-align-edge--bottom {
  bottom: 0;
}

.canvas-card__body,
.canvas-ui {
  display: grid;
  gap: var(--canvas-card-inner-gap);
}

.canvas-ui--text,
.canvas-ui--button {
  align-content: center;
}

.canvas-ui__eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.canvas-ui__button {
  appearance: none;
  min-height: 2.9rem;
  padding: 0.8rem 1rem;
  border-radius: var(--canvas-control-radius);
  border: 1px solid rgba(35, 52, 43, 0.12);
  background: linear-gradient(145deg, #173b2a, #0f2a1d);
  color: #f8fff9;
  font-weight: 800;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.canvas-ui__button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 32px -24px rgba(15, 42, 29, 0.7);
}

.canvas-ui__button:focus-visible {
  outline: 2px solid rgba(103, 209, 156, 0.45);
  outline-offset: 2px;
}

.canvas-ui__calendar {
  display: grid;
  gap: 0.9rem;
}

.canvas-ui__calendar-toolbar,
.canvas-ui__calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.canvas-ui__calendar-title,
.canvas-ui__state-current {
  color: var(--color-text);
}

.canvas-ui__calendar-button,
.canvas-ui__calendar-today {
  appearance: none;
  border: 1px solid rgba(35, 52, 43, 0.12);
  border-radius: var(--canvas-control-radius);
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-text);
  font: inherit;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.canvas-ui__calendar-button {
  min-width: 2.5rem;
  min-height: 2.5rem;
  font-size: 1.2rem;
  font-weight: 700;
}

.canvas-ui__calendar-today {
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.canvas-ui__calendar-button:hover,
.canvas-ui__calendar-today:hover,
.canvas-ui__calendar-day:hover {
  transform: translateY(-1px);
  border-color: rgba(103, 209, 156, 0.34);
  background: rgba(103, 209, 156, 0.1);
}

.canvas-ui__calendar-weekdays,
.canvas-ui__calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.45rem;
}

.canvas-ui__calendar-weekday {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.canvas-ui__calendar-day {
  appearance: none;
  min-height: 3rem;
  border: 1px solid rgba(35, 52, 43, 0.08);
  border-radius: calc(var(--canvas-control-radius) - 4px);
  background: rgba(255, 255, 255, 0.74);
  color: var(--color-text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.canvas-ui__calendar-day[data-in-month="false"] {
  opacity: 0.45;
}

.canvas-ui__calendar-day[data-today="true"] {
  border-color: rgba(35, 52, 43, 0.22);
}

.canvas-ui__calendar-day[data-selected="true"] {
  border-color: rgba(103, 209, 156, 0.5);
  background: rgba(103, 209, 156, 0.18);
  color: #113424;
}

.canvas-ui__state-list {
  display: grid;
  gap: 0.75rem;
}

.canvas-ui__state-history {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
  color: var(--color-text);
}

.canvas-ui__state-history-empty {
  color: var(--color-text-muted);
}

.canvas-shell__loader {
  min-height: 1.5rem;
}

.canvas-layout-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 60;
  width: 3.1rem;
  height: 3.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border-radius: 999px;
  color: var(--color-text);
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.canvas-layout-toggle:hover,
.canvas-layout-toggle[data-active="true"] {
  transform: translateY(-1px);
  border-color: rgba(103, 209, 156, 0.42);
  background: rgba(103, 209, 156, 0.12);
}

.canvas-layout-toggle__icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}

.canvas-layout-toggle__label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.canvas-card__debug-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid rgba(103, 209, 156, 0.28);
  border-radius: 999px;
  background: rgba(16, 33, 24, 0.88);
  color: #f5fff8;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.canvas-layout-edit-active [data-layout-selectable="true"] {
  cursor: pointer;
}

.canvas-layout-edit-active .canvas-card {
  cursor: move;
}

.canvas-layout-edit-active .canvas-card[data-dragging="true"] {
  z-index: 6;
  box-shadow:
    inset 0 0 0 2px rgba(190, 36, 36, 0.14),
    0 22px 44px -28px rgba(16, 33, 24, 0.48);
}

.canvas-layout-edit-active [data-layout-selectable="true"][data-selected="true"],
.canvas-layout-edit-active .canvas-region[data-selected="true"] {
  border-color: rgba(103, 209, 156, 0.5);
  outline: 2px solid rgba(103, 209, 156, 0.28);
  outline-offset: -2px;
}

.canvas-layout-edit-active .canvas-card[data-selected="true"] {
  box-shadow:
    inset 0 0 0 2px rgba(103, 209, 156, 0.18),
    var(--shadow-base);
}

.canvas-layout-edit-active .canvas-shell,
.canvas-layout-edit-active .canvas-region {
  position: relative;
}

.canvas-layout-edit-active [data-layout-preview-target="true"]::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 2px solid rgba(190, 36, 36, 0.92);
  border-radius: inherit;
  pointer-events: none;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.45),
    0 0 0 1px rgba(190, 36, 36, 0.18);
  z-index: 4;
}

.canvas-layout-edit-active .canvas-ui__interactive {
  pointer-events: none;
  opacity: 0.72;
}

.canvas-layout-inspector {
  position: fixed;
  right: 1rem;
  top: 5rem;
  z-index: 55;
  width: min(30rem, calc(100vw - 2rem));
  max-height: calc(100vh - 6rem);
  overflow: auto;
  padding: 1rem;
  display: grid;
  gap: 0.9rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(246, 252, 248, 0.98)),
    var(--color-card);
  backdrop-filter: blur(10px);
}

.canvas-layout-inspector[hidden] {
  display: none;
}

.canvas-layout-inspector__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem;
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.canvas-layout-inspector[data-dragging="true"] .canvas-layout-inspector__header {
  cursor: grabbing;
}

.canvas-layout-inspector__status {
  font-size: 0.8rem;
  font-weight: 700;
  text-align: right;
  color: var(--color-text);
}

.canvas-layout-inspector__status[data-error="true"] {
  color: #8a2b2b;
}

.canvas-layout-inspector__details {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.canvas-layout-inspector__detail {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem;
}

.canvas-layout-inspector__detail dt {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.canvas-layout-inspector__detail dd {
  margin: 0;
  text-align: right;
  font-weight: 700;
  color: var(--color-text);
  max-width: 19rem;
  white-space: normal;
  overflow-wrap: anywhere;
}

.canvas-layout-inspector__detail[data-kind="math"] {
  align-items: start;
}

.canvas-layout-inspector__detail[data-kind="math"] dd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.8rem;
  line-height: 1.45;
  white-space: pre-wrap;
  text-align: left;
}

.canvas-layout-inspector__controls {
  display: grid;
  gap: 0.65rem;
}

.canvas-layout-inspector__control {
  display: grid;
  gap: 0.45rem;
  padding: 0.8rem;
  border-radius: calc(var(--canvas-surface-radius) - 2px);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(35, 52, 43, 0.08);
}

.canvas-layout-inspector__control[data-preview-active="true"] {
  border-color: rgba(190, 36, 36, 0.28);
  background: rgba(255, 244, 244, 0.92);
}

.canvas-layout-inspector__input,
.canvas-layout-inspector__toggle {
  width: 100%;
  border-radius: var(--canvas-control-radius);
  border: 1px solid rgba(35, 52, 43, 0.14);
  padding: 0.68rem 0.8rem;
  background: #ffffff;
  color: var(--color-text);
  font: inherit;
}

.canvas-layout-inspector__toggle {
  width: auto;
}

.canvas-layout-inspector__color-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.canvas-layout-inspector__color-input {
  width: 3.5rem;
  height: 2.6rem;
  border: 1px solid rgba(35, 52, 43, 0.14);
  border-radius: var(--canvas-control-radius);
  padding: 0.18rem;
  background: #ffffff;
  cursor: pointer;
}

.canvas-layout-inspector__color-reset {
  appearance: none;
  border: 1px solid rgba(35, 52, 43, 0.12);
  border-radius: var(--canvas-control-radius);
  padding: 0.68rem 0.8rem;
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-text);
  font: inherit;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.canvas-layout-inspector__color-reset:hover {
  transform: translateY(-1px);
  border-color: rgba(103, 209, 156, 0.32);
  background: rgba(103, 209, 156, 0.12);
}

.canvas-layout-inspector__palette {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.canvas-layout-inspector__swatch {
  appearance: none;
  min-height: 2.8rem;
  border-radius: var(--canvas-control-radius);
  border: 1px solid rgba(35, 52, 43, 0.14);
  background: var(--swatch-color, linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(241, 247, 243, 0.92)));
  color: var(--color-text);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.canvas-layout-inspector__swatch[data-empty="true"] {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(244, 248, 245, 0.96)),
    var(--color-card);
}

.canvas-layout-inspector__swatch[data-selected="true"] {
  border-color: rgba(103, 209, 156, 0.6);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.78);
}

.canvas-layout-inspector__swatch:hover {
  transform: translateY(-1px);
  border-color: rgba(103, 209, 156, 0.34);
}

.canvas-layout-inspector__dump {
  margin: 0;
  padding: 0.85rem;
  border-radius: calc(var(--canvas-surface-radius) - 2px);
  background: rgba(18, 24, 20, 0.92);
  color: #d5f6e0;
  min-height: 10rem;
  font-size: 0.78rem;
  line-height: 1.45;
  overflow: auto;
}

@media (max-width: 980px) {
  .canvas-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "side"
      "header"
      "body"
      "footer";
    grid-template-rows: auto auto minmax(20rem, 1fr) auto;
  }

  .canvas-region--sidemenu {
    position: static;
    min-height: auto;
    border-right: 1px solid var(--color-card-border);
    justify-items: start;
    border-top-right-radius: var(--canvas-region-radius);
    border-bottom-right-radius: var(--canvas-region-radius);
  }

  .canvas-region--sidemenu[data-pinned="true"] {
    position: sticky;
  }

  .canvas-region--header,
  .canvas-region--body,
  .canvas-region--footer {
    border: 1px solid var(--color-card-border);
    border-radius: var(--canvas-region-radius);
  }

  .canvas-shell__nav {
    grid-auto-flow: column;
    justify-content: start;
    overflow-x: auto;
    padding-bottom: 0.1rem;
  }
}

@media (max-width: 760px) {
  .canvas-section__cards {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .canvas-card {
    grid-column: 1 / -1 !important;
    grid-row: auto !important;
    min-height: auto !important;
  }

  .canvas-layout-toggle {
    top: 0.85rem;
    right: 0.85rem;
  }

  .canvas-layout-inspector {
    top: auto;
    right: 1rem;
    left: 1rem;
    bottom: 1rem;
    width: auto;
    max-height: min(70vh, 34rem);
  }
}