.blank-text-page {
  --blank-ink: #000;
  --blank-panel: rgba(18, 22, 38, .9);
  --blank-soft: rgba(255, 255, 255, .08);
  --blank-chip: rgba(61, 214, 255, .12);
  --blank-good: #42e58c;
}

body.light-theme.blank-text-page {
  --blank-panel: rgba(255, 247, 204, .88);
  --blank-soft: rgba(255, 255, 255, .66);
  --blank-chip: rgba(31, 119, 255, .12);
  --blank-good: #16c06f;
}

.blank-tool-shell {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: clamp(10px, 2vw, 24px) 0 60px;
}

.blank-hero {
  max-width: 960px;
  margin: 0 auto 28px;
  text-align: center;
}

.blank-kicker,
.blank-section-label {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 950;
}

.blank-hero h1 {
  max-width: 980px;
  margin: 0 auto 16px;
  font-size: clamp(2.5rem, 7vw, 5.8rem);
  line-height: .98;
  text-wrap: balance;
}

.blank-hero p {
  max-width: 760px;
  margin: 0 auto;
  font-size: clamp(1rem, 1.5vw, 1.22rem);
  font-weight: 800;
}

.blank-tool-card,
.blank-warning,
.blank-seo-section {
  border: 3px solid var(--blank-ink);
  border-radius: 24px;
  background: var(--blank-panel);
  box-shadow: var(--shadow-hard);
}

.blank-tool-card {
  padding: clamp(16px, 3vw, 28px);
}

.blank-tool-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 18px;
  align-items: center;
  padding: clamp(14px, 3vw, 24px);
  border: 3px solid var(--blank-ink);
  border-bottom: 0;
  border-radius: 22px 22px 0 0;
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 28%, transparent), transparent 34%),
    color-mix(in srgb, var(--surface) 88%, transparent);
}

.blank-tool-main h2,
.blank-test-panel h2,
.blank-seo-section h2,
.blank-warning h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3.5vw, 2.7rem);
}

.blank-tool-main p,
.blank-test-panel p,
.blank-seo-section p,
.blank-warning p {
  margin: 0;
  font-weight: 800;
}

.blank-copy-panel {
  display: grid;
  gap: 12px;
}

.blank-current {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px;
  border: 3px solid var(--blank-ink);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: 0 5px 0 rgba(0, 0, 0, .22);
  color: var(--text);
  font-weight: 950;
}

.blank-current code,
.blank-style-btn code,
.blank-symbol-table code {
  padding: 3px 7px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
  font-weight: 950;
}

.blank-primary-btn,
.blank-stepper button,
.blank-style-btn,
.blank-clear-btn {
  border: 3px solid var(--blank-ink);
  box-shadow: 0 6px 0 rgba(0, 0, 0, .26);
  cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, background .18s ease;
}

.blank-primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 58px;
  padding: 13px 18px;
  border-radius: 18px;
  background: var(--accent);
  color: #071018;
  font-size: 1.08rem;
  font-weight: 950;
}

.blank-primary-btn[data-copied="true"] {
  background: var(--blank-good);
}

.blank-primary-btn:hover,
.blank-stepper button:hover,
.blank-style-btn:hover,
.blank-clear-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 rgba(0, 0, 0, .24);
}

.blank-primary-btn:active,
.blank-stepper button:active,
.blank-style-btn:active,
.blank-clear-btn:active {
  transform: translateY(2px);
  box-shadow: 0 3px 0 rgba(0, 0, 0, .24);
}

.blank-style-picker {
  margin-top: 0;
  padding: 16px;
  border: 3px solid var(--blank-ink);
  border-top: 0;
  border-radius: 0 0 20px 20px;
  background: var(--blank-soft);
}

.blank-style-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.blank-style-btn {
  position: relative;
  display: inline-grid;
  grid-template-columns: 26px auto;
  column-gap: 10px;
  align-items: center;
  min-height: 46px;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--paper);
  color: var(--text);
  text-align: left;
}

.blank-style-btn.is-active {
  background: color-mix(in srgb, var(--accent) 28%, var(--paper));
}

.blank-style-btn.is-active::after {
  content: "✓";
  position: absolute;
  top: -8px;
  right: -6px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 2px solid var(--blank-ink);
  border-radius: 50%;
  background: var(--blank-good);
  color: #071018;
  box-shadow: 0 2px 0 rgba(0, 0, 0, .22);
  font-size: .76rem;
  font-weight: 950;
}

.blank-style-icon {
  justify-self: center;
  transform: scale(.64);
  transform-origin: center;
  box-shadow: none;
}

.blank-style-icon.is-zero,
.blank-style-icon.is-joiner {
  transform: scaleX(.64) scaleY(.5);
}

.blank-style-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
}

.blank-style-btn strong {
  display: inline;
  font-size: .83rem;
  line-height: 1.05;
}

.blank-controls {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.blank-control-group,
.blank-test-panel {
  padding: 16px;
  border: 3px solid var(--blank-ink);
  border-radius: 20px;
  background: var(--blank-soft);
}

.blank-control-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.blank-control-head h3 {
  margin: 0;
  font-size: 1.18rem;
}

.blank-control-head span {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 900;
}

.blank-stepper {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 46px;
  gap: 8px;
}

.blank-stepper button {
  border-radius: 14px;
  background: var(--accent);
  color: #071018;
  font-size: 1.5rem;
  font-weight: 950;
}

.blank-stepper input,
.blank-output,
.blank-test-panel textarea {
  width: 100%;
  border: 3px solid var(--blank-ink);
  border-radius: 14px;
  background: var(--paper);
  color: var(--text);
  font-weight: 900;
  box-shadow: inset 0 3px 0 rgba(0, 0, 0, .16);
}

.blank-stepper input {
  min-width: 0;
  padding: 10px 12px;
  text-align: center;
}

.blank-range {
  width: 100%;
  margin-top: 15px;
  accent-color: var(--accent);
}

.blank-output,
.blank-test-panel textarea {
  min-height: 92px;
  padding: 12px;
  resize: vertical;
}

.blank-test-panel textarea::selection {
  background: color-mix(in srgb, var(--accent) 48%, transparent);
  color: var(--text);
}

.blank-preview-group {
  display: grid;
  align-content: start;
}

.blank-ghost-preview {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 54px;
  padding: 10px;
  border: 3px solid var(--blank-ink);
  border-radius: 14px;
  background:
    repeating-linear-gradient(45deg, color-mix(in srgb, var(--text) 8%, transparent) 0 8px, transparent 8px 16px),
    var(--paper);
  box-shadow: inset 0 3px 0 rgba(0, 0, 0, .16);
}

.blank-ghost-unit {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid color-mix(in srgb, var(--accent) 72%, var(--blank-ink));
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 24%, transparent);
  box-shadow: 0 3px 0 rgba(0, 0, 0, .18);
}

.blank-ghost-unit.is-wide {
  width: 36px;
  height: 18px;
  border-radius: 6px;
}

.blank-ghost-unit.is-space {
  width: 36px;
  height: 18px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, transparent 45%, color-mix(in srgb, var(--accent) 42%, transparent) 45% 55%, transparent 55%),
    color-mix(in srgb, var(--accent) 14%, transparent);
}

.blank-ghost-unit.is-zero,
.blank-ghost-unit.is-joiner {
  width: 7px;
  height: 28px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 48%, transparent);
}

.blank-ghost-unit.is-joiner {
  border-style: dashed;
}

.blank-ghost-more {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border: 2px solid var(--blank-ink);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  font-size: .78rem;
  font-weight: 950;
}

.blank-preview-note {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: .92rem;
  font-weight: 850;
  line-height: 1.35;
}

.blank-output {
  min-height: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
  resize: none;
}

.blank-reveal {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .92rem;
  font-weight: 850;
  overflow-wrap: anywhere;
}

.blank-test-panel {
  display: grid;
  grid-template-columns: minmax(220px, .9fr) minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 18px;
}

.blank-test-result {
  grid-column: 2;
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 2px dashed color-mix(in srgb, var(--text) 24%, transparent);
  border-radius: 14px;
  color: var(--muted);
  font-weight: 850;
}

.blank-test-result strong {
  color: var(--text);
  font-weight: 950;
}

.blank-test-result.is-working {
  border-style: solid;
  border-color: var(--blank-ink);
  background: color-mix(in srgb, var(--blank-good) 22%, transparent);
  color: var(--text);
}

.blank-test-result.is-working strong::before {
  content: "✓ ";
  color: var(--blank-good);
}

.blank-test-result.is-warning {
  border-style: solid;
  border-color: var(--blank-ink);
  background: color-mix(in srgb, var(--brand-color) 18%, transparent);
  color: var(--text);
}

.blank-test-result.is-warning strong::before {
  content: "!";
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-right: 6px;
  border: 2px solid var(--blank-ink);
  border-radius: 50%;
  background: var(--brand-color);
  color: #071018;
  font-size: .76rem;
}

.blank-test-result.is-empty strong::before {
  content: "!";
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-right: 6px;
  border: 2px solid var(--blank-ink);
  border-radius: 50%;
  background: var(--brand-color);
  color: #071018;
  font-size: .76rem;
}

.blank-test-box {
  display: grid;
  gap: 10px;
}

.blank-test-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.blank-clear-btn {
  justify-self: start;
  padding: 10px 13px;
  border-radius: 14px;
  font-weight: 950;
}

.blank-clear-btn {
  background: var(--paper);
  color: var(--text);
}

.blank-test-hint {
  flex: 1 1 220px;
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 850;
  line-height: 1.25;
}

.blank-warning,
.blank-seo-section {
  margin-top: 24px;
  padding: clamp(18px, 3vw, 28px);
}

.blank-warning {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  background: color-mix(in srgb, var(--accent-2) 12%, var(--blank-panel));
}

.blank-warning-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 3px solid var(--blank-ink);
  border-radius: 50%;
  background: var(--brand-color);
  color: #071018;
  box-shadow: 0 5px 0 rgba(0, 0, 0, .24);
  font-weight: 950;
}

.blank-use-grid,
.blank-faq-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.blank-use-grid article,
.blank-faq-grid article {
  padding: 16px;
  border: 3px solid var(--blank-ink);
  border-radius: 18px;
  background: var(--blank-soft);
}

.blank-use-grid span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 36px;
  margin-bottom: 10px;
  border: 3px solid var(--blank-ink);
  border-radius: 14px;
  background: var(--accent);
  color: #071018;
  box-shadow: 0 4px 0 rgba(0, 0, 0, .22);
  font-weight: 950;
}

.blank-use-grid h3,
.blank-faq-grid h3 {
  margin: 0 0 8px;
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 1.08rem;
  line-height: 1.2;
  text-shadow: none;
}

.blank-table-wrap {
  margin-top: 16px;
  overflow-x: auto;
}

.blank-symbol-table {
  width: 100%;
  min-width: 680px;
  border-collapse: separate;
  border-spacing: 0;
  border: 3px solid var(--blank-ink);
  border-radius: 18px;
  overflow: hidden;
  background: var(--paper);
}

.blank-symbol-table th,
.blank-symbol-table td {
  padding: 13px 14px;
  border-bottom: 2px solid color-mix(in srgb, var(--text) 13%, transparent);
  text-align: left;
  font-weight: 800;
}

.blank-symbol-table tr:last-child td {
  border-bottom: 0;
}

.blank-symbol-table th {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
  font-weight: 950;
}

.blank-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 1300;
  transform: translateX(-50%) translateY(18px);
  opacity: 0;
  pointer-events: none;
  padding: 10px 18px;
  border: 3px solid #000;
  border-radius: 999px;
  background: var(--blank-good);
  color: #071018;
  box-shadow: 0 6px 0 rgba(0, 0, 0, .28);
  font-weight: 950;
  transition: opacity .18s ease, transform .18s ease;
}

.blank-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 980px) {
  .blank-tool-main,
  .blank-controls,
  .blank-test-panel {
    grid-template-columns: 1fr;
  }

  .blank-test-result {
    grid-column: auto;
  }

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

@media (max-width: 640px) {
  .blank-tool-shell {
    padding-bottom: 36px;
  }

  .blank-hero {
    text-align: left;
  }

  .blank-tool-card,
  .blank-warning,
  .blank-seo-section {
    border-radius: 18px;
  }

  .blank-tool-main,
  .blank-control-group,
  .blank-test-panel {
    border-radius: 16px;
  }

  .blank-tool-main {
    border-radius: 16px 16px 0 0;
  }

  .blank-style-picker {
    border-radius: 0 0 16px 16px;
  }

  .blank-style-grid,
  .blank-use-grid,
  .blank-faq-grid {
    grid-template-columns: 1fr;
  }

  .blank-primary-btn {
    width: 100%;
  }

  .blank-current {
    align-items: flex-start;
    flex-direction: column;
  }

  .blank-warning {
    grid-template-columns: 1fr;
  }
}