/* CSS Noise Texture Generator — Stylesheet
   Prefix: --noi-
   Cluster: developer (accent: --tf-accent #1f4e5f in light, #5fa8bf in dark). */

:root {
  --noi-surface: #ffffff;
  --noi-card: #ffffff;
  --noi-border: #e2e8f0;
  --noi-text: #0f172a;
  --noi-muted: #64748b;
  --noi-code-bg: #f8fafc;
  --noi-radius: 2px;
}

.noi-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.noi-main {
  padding: 16px 0 60px;
}

/* Presets Row */
.noi-presets-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.noi-preset-lbl {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--noi-muted);
}

.noi-chip {
  background: var(--noi-surface);
  border: 1px solid var(--noi-border);
  color: var(--noi-text);
  padding: 5px 12px;
  border-radius: var(--noi-radius);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s, color 0.15s;
}

.noi-chip:hover {
  border-color: var(--tf-accent);
  color: var(--tf-accent);
}

.noi-chip.active {
  background: var(--tf-accent-wash);
  border-color: var(--tf-accent);
  color: var(--tf-accent);
  font-weight: 700;
}

/* Split Grid */
.noi-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 860px) {
  .noi-layout-grid {
    grid-template-columns: 1fr;
  }
}

.noi-card {
  background: var(--noi-surface);
  border: 1px solid var(--noi-border);
  border-radius: var(--noi-radius);
  padding: 24px;
}

.noi-section-title {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--noi-text);
  margin: 0 0 16px;
  border-bottom: 1px solid var(--noi-border);
  padding-bottom: 8px;
}

/* Controls */
.noi-ctrl-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.noi-ctrl-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.noi-lbl {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--noi-text);
}

.noi-val {
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--tf-accent);
  background: var(--tf-accent-wash);
  padding: 2px 6px;
  border-radius: var(--noi-radius);
  font-weight: 700;
}

.noi-range {
  width: 100%;
  accent-color: var(--tf-accent);
}

.noi-select {
  background: var(--noi-surface);
  border: 1px solid var(--noi-border);
  color: var(--noi-text);
  padding: 8px 12px;
  border-radius: var(--noi-radius);
  font-size: 0.875rem;
  font-family: inherit;
}

.noi-select:focus {
  outline: 2px solid var(--tf-accent);
  border-color: var(--tf-accent);
}

.noi-color-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.noi-color-input {
  width: 44px;
  height: 36px;
  border: 1px solid var(--noi-border);
  border-radius: var(--noi-radius);
  cursor: pointer;
  background: transparent;
  padding: 2px;
}

.noi-color-hex {
  font-family: ui-monospace, monospace;
  font-size: 0.8125rem;
  color: var(--noi-text);
  font-weight: 600;
}

.noi-btn-primary {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--tf-accent);
  color: var(--tf-accent-ink, #ffffff);
  border: 1px solid var(--tf-accent);
  padding: 12px;
  border-radius: var(--noi-radius);
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s ease;
  margin-top: 8px;
}

.noi-btn-primary:hover {
  background: var(--tf-accent-hover);
}

/* Preview Stage */
.noi-preview-stage {
  width: 100%;
  min-height: 240px;
  border: 1px solid var(--noi-border);
  border-radius: var(--noi-radius);
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
}

.noi-stage-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.noi-demo-card {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--noi-border);
  border-radius: var(--noi-radius);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  max-width: 85%;
}

.noi-demo-card h3 {
  margin: 0 0 6px;
  font-size: 1.125rem;
  color: #0f172a;
}

.noi-demo-card p {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  color: #475569;
  line-height: 1.4;
}

.noi-demo-btn {
  background: var(--tf-accent);
  color: var(--tf-accent-ink, #ffffff);
  border: none;
  padding: 8px 16px;
  border-radius: var(--noi-radius);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
}

/* Export Code Box */
.noi-export-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.noi-export-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.noi-exp-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--noi-text);
}

.noi-btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--noi-surface);
  border: 1px solid var(--noi-border);
  color: var(--noi-text);
  padding: 4px 10px;
  border-radius: var(--noi-radius);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.noi-btn-copy:hover {
  border-color: var(--tf-accent);
  color: var(--tf-accent);
}

.noi-code-block {
  margin: 0;
  background: var(--noi-code-bg);
  border: 1px solid var(--noi-border);
  border-radius: var(--noi-radius);
  padding: 12px;
  overflow-x: auto;
}

.noi-code-block code {
  display: block;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--noi-text);
  white-space: pre-wrap;
  word-break: break-all;
}

.noi-ad-container {
  margin-block: 2rem;
  min-height: 280px;
  border: 1px dashed var(--noi-border);
  border-radius: var(--noi-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --noi-surface: var(--tf-surface);
  --noi-card: var(--tf-surface);
  --noi-border: var(--tf-surface);
  --noi-text: var(--tf-ink);
  --noi-muted: var(--tf-ink-faint);
  --noi-code-bg: var(--tf-surface);
}

[data-theme="dark"] .noi-demo-card {
  background: rgba(30, 41, 59, 0.92);
  border-color: var(--tf-rule);
}

.noi-demo-card h3 {
  color: var(--tf-ink);
}

.noi-demo-card p {
  color: var(--tf-ink-soft);
}