.canvas-size-page {
  background:
    linear-gradient(180deg, rgba(236, 246, 255, 0.82), rgba(255, 255, 255, 0) 520px),
    #fff;
}

.canvas-size-hero {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 72px var(--page-pad) 42px;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 0.72fr);
  gap: 48px;
  align-items: center;
}

.canvas-size-hero h1 {
  max-width: 900px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(3.4rem, 6vw, 6.8rem);
  line-height: 0.96;
}

.canvas-size-hero .lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.22rem;
  line-height: 1.75;
}

.canvas-size-visual {
  display: grid;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(237, 245, 255, 0.9), rgba(255, 255, 255, 0.52)),
    #fff;
  box-shadow: 0 26px 68px rgba(28, 82, 141, 0.12);
}

.canvas-visual-frame {
  min-height: 340px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(90deg, rgba(23, 105, 224, 0.16) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(rgba(23, 105, 224, 0.16) 1px, transparent 1px) 0 0 / 42px 42px,
    #fff;
  border: 1px solid #cfe0f2;
}

.canvas-visual-frame span {
  padding: 10px 14px;
  color: var(--blue);
  background: #fff;
  border: 1px solid #cde1fa;
  font-weight: 850;
}

.canvas-visual-metrics {
  display: grid;
  gap: 6px;
  padding: 16px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.canvas-visual-metrics strong {
  font-size: 1.32rem;
}

.canvas-visual-metrics small {
  color: var(--muted);
  font-size: 0.96rem;
}

.canvas-preset-section,
.canvas-size-guide {
  background: #fff;
}

.canvas-preset-filter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.34fr);
  gap: 18px;
  align-items: end;
  margin-bottom: 20px;
}

.canvas-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.canvas-filter-tabs button {
  min-height: 36px;
  padding: 0 12px;
  color: var(--muted);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 850;
  cursor: pointer;
}

.canvas-filter-tabs button.active,
.canvas-filter-tabs button:hover {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.canvas-preset-filter label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.canvas-preset-filter input {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.canvas-preset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.canvas-preset-grid button[hidden] {
  display: none;
}

.canvas-preset-grid button {
  min-height: 160px;
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
  text-align: left;
  color: var(--ink);
  background:
    linear-gradient(145deg, rgba(237, 245, 255, 0.76), rgba(255, 255, 255, 0) 62%),
    #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 42px rgba(28, 82, 141, 0.07);
  cursor: pointer;
}

.canvas-preset-grid button:hover {
  border-color: #b9d7fb;
  box-shadow: 0 18px 52px rgba(28, 82, 141, 0.12);
}

.canvas-preset-grid button.active {
  border-color: var(--blue);
  box-shadow: 0 18px 52px rgba(23, 105, 224, 0.16);
}

.canvas-preset-grid span {
  width: fit-content;
  padding: 5px 9px;
  color: var(--blue);
  background: #e9f3ff;
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
}

.canvas-preset-grid strong {
  font-size: 1.36rem;
  line-height: 1.2;
}

.canvas-preset-grid small {
  color: var(--muted);
  font-size: 0.98rem;
}

.canvas-preset-empty {
  margin: 18px 0 0;
  padding: 18px;
  color: var(--muted);
  background: #f8fbff;
  border: 1px solid #e3edf8;
  font-weight: 800;
}

.canvas-share-starts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 16px;
  background: #f8fbff;
  border: 1px solid #e3edf8;
}

.canvas-share-starts span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 850;
}

.canvas-share-starts a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: var(--blue);
  background: #fff;
  border: 1px solid #cde1fa;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 850;
  text-decoration: none;
}

.canvas-share-starts a:hover {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.canvas-size-workspace {
  display: grid;
  grid-template-columns: minmax(340px, 0.42fr) minmax(0, 0.58fr);
  gap: 26px;
  align-items: start;
  background: #f7fbff;
}

.canvas-size-controls,
.canvas-size-output {
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 18px 48px rgba(28, 82, 141, 0.08);
}

.canvas-size-controls {
  display: grid;
  gap: 18px;
  padding: 24px;
}

.canvas-size-controls .control-block {
  display: grid;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.canvas-size-controls .control-block:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.canvas-size-controls .control-block.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.canvas-size-controls .control-block .eyebrow {
  grid-column: 1 / -1;
  margin: 0;
}

.canvas-size-controls label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.canvas-size-controls input,
.canvas-size-controls select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.canvas-size-controls input[type="color"] {
  padding: 4px;
}

.canvas-size-controls .checkbox-control {
  grid-column: 1 / -1;
  grid-template-columns: 18px 1fr;
  align-items: center;
}

.canvas-size-controls .checkbox-control input {
  min-height: auto;
}

.canvas-form-actions,
.canvas-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.canvas-form-actions span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.canvas-size-output {
  position: sticky;
  top: 92px;
  padding: 22px;
}

.canvas-output-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 18px;
}

.canvas-output-toolbar strong {
  display: block;
  color: var(--ink);
  font-size: 1.35rem;
}

.canvas-output-toolbar > span {
  color: var(--blue);
  font-weight: 850;
}

.canvas-preview-frame {
  min-height: 420px;
  display: grid;
  place-items: center;
  padding: 22px;
  background:
    linear-gradient(45deg, #f2f6fa 25%, transparent 25%) 0 0 / 18px 18px,
    linear-gradient(45deg, transparent 75%, #f2f6fa 75%) 0 0 / 18px 18px,
    #fff;
  border: 1px solid var(--line);
  overflow: auto;
}

.canvas-preview-frame svg {
  display: block;
  max-width: 100%;
  max-height: 54vh;
  height: auto;
  background: #fff;
  box-shadow: 0 20px 50px rgba(20, 31, 43, 0.16);
}

.canvas-metric-grid,
.canvas-use-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.canvas-metric-grid article,
.canvas-use-panel article {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 16px;
  border: 1px solid #e3edf8;
  background: #f8fbff;
}

.canvas-metric-grid span,
.canvas-use-panel span {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 850;
  line-height: 1.2;
}

.canvas-metric-grid strong {
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.25;
}

.canvas-copy-panel {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid #e3edf8;
  background: #fff;
}

.canvas-copy-panel > span {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 850;
  line-height: 1.2;
}

.canvas-copy-panel div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.canvas-copy-panel button {
  min-height: 34px;
  padding: 0 11px;
  color: var(--blue);
  background: #edf5ff;
  border: 1px solid #cde1fa;
  border-radius: 999px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 850;
  cursor: pointer;
}

.canvas-copy-panel button:hover {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.canvas-use-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.58;
}

.canvas-next-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-top: 18px;
  padding: 18px;
  background:
    linear-gradient(145deg, rgba(237, 245, 255, 0.86), rgba(255, 255, 255, 0.2)),
    #fff;
  border: 1px solid #cfe0f2;
}

.canvas-next-panel span {
  display: block;
  margin-bottom: 6px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 850;
  line-height: 1.2;
}

.canvas-next-panel strong {
  display: block;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.3;
}

.canvas-next-panel p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.62;
}

.canvas-actions {
  margin-top: 18px;
}

.canvas-scenario-section {
  background: #fff;
}

.canvas-scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.canvas-scenario-grid article {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 310px;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(237, 245, 255, 0.74), rgba(255, 255, 255, 0) 60%),
    #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 42px rgba(28, 82, 141, 0.07);
}

.canvas-scenario-grid span {
  width: fit-content;
  padding: 5px 9px;
  color: var(--blue);
  background: #e9f3ff;
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
}

.canvas-scenario-grid h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.28rem;
  line-height: 1.25;
}

.canvas-scenario-grid strong {
  color: var(--blue);
  font-size: 1.12rem;
  line-height: 1.2;
}

.canvas-scenario-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.canvas-scenario-grid a {
  align-self: end;
  color: var(--blue);
  font-weight: 850;
  text-decoration: none;
}

.canvas-scenario-grid a:hover {
  text-decoration: underline;
}

.canvas-workflow-section {
  background:
    linear-gradient(180deg, #fff, #f8fbff);
}

.canvas-workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.canvas-workflow-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 230px;
  padding: 24px;
  color: inherit;
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 42px rgba(28, 82, 141, 0.07);
}

.canvas-workflow-card:hover {
  border-color: #b9d7fb;
  box-shadow: 0 18px 52px rgba(28, 82, 141, 0.12);
}

.canvas-workflow-card span {
  width: fit-content;
  padding: 5px 9px;
  color: var(--blue);
  background: #e9f3ff;
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1;
}

.canvas-workflow-card strong {
  color: var(--ink);
  font-size: 1.34rem;
  line-height: 1.22;
}

.canvas-workflow-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.canvas-size-guide p {
  max-width: 920px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.canvas-size-table-wrap {
  margin-top: 30px;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 14px 36px rgba(28, 82, 141, 0.06);
}

.canvas-size-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.canvas-size-table th,
.canvas-size-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.canvas-size-table th {
  color: var(--blue);
  background: #f3f8ff;
  font-size: 0.82rem;
  font-weight: 850;
}

.canvas-size-table td {
  color: var(--muted);
  line-height: 1.55;
}

.canvas-size-table td:first-child,
.canvas-size-table td:nth-child(2),
.canvas-size-table td:nth-child(3) {
  color: var(--ink);
  font-weight: 800;
}

.canvas-size-table tr:last-child td {
  border-bottom: 0;
}

.canvas-faq-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.canvas-faq-grid article {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 180px;
  padding: 22px;
  background:
    linear-gradient(145deg, rgba(237, 245, 255, 0.74), rgba(255, 255, 255, 0) 62%),
    #fff;
  border: 1px solid var(--line);
  box-shadow: 0 14px 36px rgba(28, 82, 141, 0.06);
}

.canvas-faq-grid h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.32;
}

.canvas-faq-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.68;
}

@media (max-width: 1120px) {
  .canvas-size-hero,
  .canvas-size-workspace {
    grid-template-columns: 1fr;
  }

  .canvas-size-output {
    position: static;
  }

  .canvas-preset-filter,
  .canvas-preset-grid {
    grid-template-columns: 1fr;
  }

  .canvas-preset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .canvas-scenario-grid,
  .canvas-workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .canvas-faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .canvas-size-hero {
    padding-top: 46px;
  }

  .canvas-size-hero h1 {
    font-size: 3.2rem;
  }

  .canvas-size-visual {
    padding: 16px;
  }

  .canvas-visual-frame {
    min-height: 240px;
  }

  .canvas-size-controls .control-block.two-col,
  .canvas-preset-grid,
  .canvas-metric-grid,
  .canvas-use-panel,
  .canvas-next-panel,
  .canvas-scenario-grid,
  .canvas-workflow-grid,
  .canvas-faq-grid {
    grid-template-columns: 1fr;
  }

  .canvas-preview-frame {
    min-height: 320px;
    padding: 14px;
  }
}