@import url('https://fonts.googleapis.com/css2?family=DotGothic16&display=swap');

:root {
  --bg: #07071a;
  --surface: #0f0f38;
  --surface-hover: rgba(160, 180, 255, 0.06);
  --line: rgba(180, 200, 255, 0.5);
  --line-dim: rgba(160, 180, 255, 0.28);
  --text: #eef0ff;
  --text-dim: rgba(238,240,255,0.78);
  --muted: rgba(200,210,255,0.68);
  --accent: #c8d8ff;
  --accent-strong: #a0b4f0;
  --accent-soft: rgba(160,180,255,0.1);
  --warm: #ff8866;
  --danger: #ff6666;
  --success: #66ffaa;
  --radius: 4px;
  --win-shadow:
    inset 0 0 0 1px #07071a,
    inset 0 0 0 3px rgba(180,200,255,0.45);
  --win-shadow-hover:
    inset 0 0 0 1px #07071a,
    inset 0 0 0 3px rgba(200,220,255,0.7),
    0 0 20px rgba(140,160,255,0.15);
  --max: 1200px;
  --font: 'DotGothic16', 'Yu Gothic', 'Hiragino Sans', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 18px; }
body { font-size: 1rem; font-weight: 700; line-height: 1.8; }

/* ── Starfield background ── */
body {
  font-family: var(--font);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.6) 1px, transparent 1px),
    radial-gradient(circle, rgba(255,255,255,0.3) 1px, transparent 1px);
  background-size: 80px 80px, 40px 40px;
  background-position: 0 0, 20px 20px;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #07071a;
  border-bottom: 3px solid var(--accent);
  box-shadow: 0 3px 0 #07071a, 0 5px 0 var(--accent-strong);
}

.site-header__inner,
.site-footer__inner,
.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-shadow: 0 0 14px rgba(160,180,255,0.5);
}

.brand__mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand__mark img {
  width: 36px;
  height: 36px;
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.site-nav a { transition: color 0.1s, text-shadow 0.1s; }
.site-nav a:hover { color: var(--accent); text-shadow: 0 0 10px rgba(160,180,255,0.5); }

/* ── DQ Window surfaces ── */
.hero__panel,
.card,
.tool-shell,
.content-panel,
.notice,
.faq,
.footer-panel {
  background: var(--surface);
  border: 2px solid var(--line);
  box-shadow: var(--win-shadow);
  border-radius: var(--radius);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #07071a;
  border: 2px solid var(--accent);
  border-radius: 2px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

/* ── Hero section ── */
.site-hero {
  border-bottom: 3px solid var(--line-dim);
  padding: 52px 0 44px;
  position: relative;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-text {
  display: grid;
  gap: 22px;
  flex: 1;
}

.hero-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.35;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow:
    0 0 20px rgba(160,180,255,0.45),
    2px 2px 0 rgba(0,0,0,0.5);
}

.hero-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.85;
  letter-spacing: 0.02em;
}

.hero-stats {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 16px;
  background: #07071a;
  border: 2px solid var(--line-dim);
  border-radius: 2px;
}

.hero-stat strong {
  font-size: 1.5rem;
  color: var(--accent);
  text-shadow: 0 0 12px rgba(160,180,255,0.5);
  letter-spacing: -0.01em;
}

.hero-stat span {
  font-size: 0.74rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.hero-mascot {
  flex-shrink: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-mascot img {
  width: 140px;
  height: auto;
  filter: drop-shadow(0 0 18px rgba(68, 102, 238, 0.5));
  animation: slime-float 3s ease-in-out infinite;
}

.hero-mascot-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-align: center;
  animation: dq-blink 1s step-end infinite;
}

@keyframes slime-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

@keyframes dq-blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* ── Page hero (tool pages) ── */
.page-hero { padding: 20px 0 14px; }

.page-hero h1 {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow: 0 0 12px rgba(160,180,255,0.35);
}

.page-hero p, .lead { color: var(--muted); font-size: 0.92rem; line-height: 1.8; }

/* ── Buttons ── */
.button,
button,
.button-secondary {
  position: relative;
  border: 2px solid var(--accent);
  border-radius: 2px;
  padding: 10px 18px;
  font: inherit;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.1s, color 0.1s, box-shadow 0.1s, transform 0.06s;
  white-space: nowrap;
}

/* DQ blinking cursor on button hover */
.button::before,
button::before {
  content: '▶';
  position: absolute;
  left: -16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7em;
  color: var(--accent);
  opacity: 0;
  pointer-events: none;
}

.button:hover::before,
button:hover::before,
.button:focus-visible::before,
button:focus-visible::before {
  opacity: 1;
  animation: dq-blink 0.6s step-end infinite;
}

button:active, .button:active {
  transform: translateY(2px);
  box-shadow: none !important;
}

.button,
button.primary {
  background: var(--accent);
  color: #07071a;
}

.button:hover, button.primary:hover {
  background: #d8e8ff;
  box-shadow: 0 0 18px rgba(160,180,255,0.4);
}

.button-secondary,
button.secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--muted);
}

.button-secondary:hover, button.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Stat ── */
.stat {
  padding: 16px 20px;
  display: grid;
  gap: 6px;
  background: #07071a;
  border-radius: 2px;
  border: 2px solid var(--line-dim);
}

.stat strong {
  font-size: 1.8rem;
  color: var(--accent);
  text-shadow: 0 0 12px rgba(160,180,255,0.5);
}

/* ── Sections ── */
.section { padding: 20px 0 48px; }

.section__header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.section__header--stack { flex-direction: column; align-items: stretch; }
.section__header--plain { margin-bottom: 28px; }

.section__header h2 {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  letter-spacing: 0.04em;
  color: var(--accent);
}

.section__header p { color: var(--muted); line-height: 1.75; }

/* ── Search ── */
.search-box { width: min(320px, 100%); }
.search-box--wide { width: min(680px, 100%); }
.tool-search-panel { display: grid; gap: 14px; width: 100%; }
.tool-area--compact { gap: 12px; }

/* ── Filter pills — DQ menu ── */
.filter-pills { display: flex; flex-wrap: wrap; gap: 8px; }

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border-radius: 2px;
  border: 2px solid var(--line-dim);
  background: var(--surface);
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: border-color 0.1s, color 0.1s, box-shadow 0.1s;
}

.filter-pill:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.filter-pill.is-active {
  color: #07071a;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(160,180,255,0.35);
}

/* ── Finder strip ── */
.finder-strip { margin-top: 18px; padding-top: 18px; border-top: 2px solid var(--line-dim); }

.finder-strip__label,
.catalog-sidebar__eyebrow,
.tool-section__eyebrow {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.finder-strip__links,
.catalog-shortcuts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 8px; }

.finder-strip__links a,
.catalog-shortcuts a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 2px;
  background: var(--surface);
  border: 2px solid var(--line-dim);
  font-size: 0.95rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  transition: border-color 0.1s, color 0.1s;
}

.finder-strip__links a:hover,
.catalog-shortcuts a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Inputs ── */
.search-box input, input, select, textarea {
  width: 100%;
  border-radius: 2px;
  border: 2px solid var(--line-dim);
  background: #07071a;
  color: var(--text);
  padding: 12px 16px;
  font: inherit;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  transition: border-color 0.1s, box-shadow 0.1s;
}

textarea { min-height: 240px; resize: vertical; line-height: 1.65; }

input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(160,180,255,0.2);
}

input::placeholder, textarea::placeholder { color: var(--muted); }

/* ── Catalog ── */
.catalog-main { display: grid; gap: 28px; }

/* ── Tool sections ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}

.tool-section { display: grid; gap: 12px; }

.tool-section__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.tool-section__header h2,
.tool-section__header h3 {
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-shadow: 0 0 8px rgba(160,180,255,0.25);
}

.tool-section__header h2 a,
.tool-section__header h3 a { color: inherit; }

.tool-section__header h2 a:hover,
.tool-section__header h3 a:hover { color: #d0e4ff; }

/* ── Tool cards — DQ window ── */
.tool-card {
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.15s;
}

.tool-card:hover { box-shadow: var(--win-shadow-hover); }

/* ▶ blinking cursor on hover */
.tool-card::before {
  content: '▶';
  position: absolute;
  left: 7px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 0.65rem;
  text-shadow: 0 0 8px rgba(160,180,255,0.7);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.1s;
}

.tool-card:hover::before {
  opacity: 1;
  animation: dq-blink 0.6s step-end infinite;
}

.tool-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px 16px 26px;
  min-height: 64px;
  border-radius: inherit;
  transition: background 0.1s;
}

.tool-card:hover .tool-row { background: var(--surface-hover); }

.tool-row h3 {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  transition: color 0.1s;
}

.tool-card:hover .tool-row h3 { color: var(--text); }

.tool-row__arrow {
  color: var(--line-dim);
  font-size: 0.95rem;
  transition: color 0.1s;
}

.tool-card:hover .tool-row__arrow { color: var(--accent); }

/* Category color coding */
.tool-card[data-category="JSON"]         { --cat: #60a5fa; }
.tool-card[data-category="Base64"]       { --cat: #a78bfa; }
.tool-card[data-category="変換"]         { --cat: #34d399; }
.tool-card[data-category="エンコード"]   { --cat: #fbbf24; }
.tool-card[data-category="HTML"]         { --cat: #f87171; }
.tool-card[data-category="比較"]         { --cat: #fb923c; }
.tool-card[data-category="文字列"]       { --cat: #e879f9; }
.tool-card[data-category="開発"]         { --cat: #2dd4bf; }
.tool-card[data-category="画像"]         { --cat: #f472b6; }
.tool-card[data-category="UI"]           { --cat: #818cf8; }
.tool-card[data-category="生成"]         { --cat: #4ade80; }
.tool-card[data-category="セキュリティ"] { --cat: #facc15; }
.tool-card[data-category="日時"]         { --cat: #38bdf8; }
.tool-card[data-category="音"]           { --cat: #c084fc; }
.tool-card[data-category="認証"]         { --cat: #fb923c; }
.tool-card[data-category="SEO"]          { --cat: #86efac; }

/* Colored left bar per category */
.tool-card::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--cat, var(--accent));
  opacity: 0.7;
  transition: opacity 0.15s, width 0.15s;
}

.tool-card:hover::after { opacity: 1; width: 4px; }

/* ── Tags ── */
.tag-row, .chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.tag, .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 2px;
  background: #07071a;
  border: 1px solid var(--line-dim);
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.chip--link { color: var(--accent); }

/* ── Breadcrumbs ── */
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 0.88rem; }
.breadcrumbs--compact { font-size: 0.78rem; gap: 6px; }
.breadcrumbs a:hover { color: var(--accent); }

/* ── Tool page head ── */
.tool-page-head { margin-top: 8px; display: grid; gap: 6px; }
.tool-inline-links { display: grid; gap: 8px; margin-top: 4px; }

.tool-inline-links__label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.tool-page-head__category {
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool-page-head__category:hover { color: var(--accent); }
.tool-page-head h1 { font-size: 1rem; line-height: 1.4; letter-spacing: 0.04em; }
.tool-page-head p { color: var(--muted); font-size: 0.84rem; line-height: 1.6; }

/* ── Tool layout ── */
.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 0.95fr);
  gap: 24px;
  padding-bottom: 60px;
}

.tool-main { display: grid; gap: 14px; }
.quick-start-panel { display: grid; gap: 12px; }

.quick-start-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px; }

.quick-start-link {
  display: grid;
  gap: 4px;
  padding: 12px 16px;
  border-radius: 2px;
  border: 2px solid var(--line-dim);
  background: var(--surface);
  transition: border-color 0.1s;
}

.quick-start-link:hover { border-color: var(--accent); }
.quick-start-link strong { font-size: 0.9rem; font-weight: 400; color: var(--text); }
.quick-start-link span { color: var(--muted); font-size: 0.8rem; }

/* ── Tool shell ── */
.tool-shell { padding: 24px; }
.tool-area { display: grid; gap: 18px; }

/* ── Button studio ── */
.button-studio { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.9fr); gap: 18px; align-items: start; }
.button-studio__controls, .button-studio__preview { min-width: 0; }
.button-studio__controls { display: grid; gap: 14px; }
.button-studio__preview { position: sticky; top: 80px; align-self: start; }

.button-preview-stage {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 2px;
  background: #07071a;
  border: 2px solid var(--line-dim);
  box-shadow: inset 0 0 0 1px #07071a, inset 0 0 0 3px var(--line-dim);
}

body[data-tool-id="button-image-generator"] .image-preview-block--large,
body[data-tool-id="icon-generator"] .image-preview-block--large {
  background-image:
    linear-gradient(45deg, rgba(255,255,255,0.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.04) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.04) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
}

.button-preview-stage__label { color: var(--muted); font-size: 0.82rem; letter-spacing: 0.06em; }

.preset-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

.preset-card {
  display: grid; gap: 10px; justify-items: start;
  padding: 12px; border-radius: 2px;
  border: 2px solid var(--line-dim); background: var(--surface);
  text-align: left; white-space: normal;
  transition: border-color 0.1s, box-shadow 0.1s;
}

.preset-card:hover, .preset-card:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(160,180,255,0.2);
}

.preset-card__title { font-size: 0.78rem; color: var(--muted); letter-spacing: 0.05em; }

.preset-card__preview {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 18px; font-size: 0.92rem;
}

.preset-card__preview--icon { width: 68px; height: 68px; padding: 0; }

.symbol-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; }

.symbol-chip {
  display: grid; gap: 6px; justify-items: center;
  padding: 12px 10px; border-radius: 2px;
  border: 2px solid var(--line-dim); background: var(--surface);
  text-align: center; transition: border-color 0.1s, box-shadow 0.1s;
}

.symbol-chip:hover, .symbol-chip:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(160,180,255,0.2);
}

.symbol-chip__mark { font-size: 1.28rem; line-height: 1; }
.symbol-chip__label { font-size: 0.76rem; color: var(--muted); letter-spacing: 0.04em; }

/* ── Selection workbench ── */
.selection-workbench { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.9fr); gap: 16px; align-items: start; }
.selection-workbench__canvas, .selection-workbench__side { min-width: 0; }
#tool-selection-canvas { touch-action: none; user-select: none; }
.selection-workbench__side { display: grid; gap: 12px; }
.selection-controls { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.range-field { display: grid; gap: 8px; }
.range-label { display: flex !important; align-items: center; justify-content: space-between; gap: 12px; }
.range-value { font-size: 0.86rem; color: var(--accent); }
input[type="range"] { padding: 0; border: 0; background: transparent; accent-color: var(--accent); }

.selection-details { border: 2px solid var(--line-dim); border-radius: 2px; background: #07071a; padding: 10px 12px; }
.selection-details summary { cursor: pointer; color: var(--muted); }
.selection-details[open] { padding-bottom: 12px; }
.selection-details[open] .field-grid { margin-top: 12px; }

.toolbar--compact { gap: 10px; }
.compact-links { display: flex; flex-wrap: wrap; gap: 10px 14px; }
.compact-links a { color: var(--accent); text-decoration: underline; text-underline-offset: 0.2em; }
.image-preview-block--compact img { max-height: 240px; object-fit: contain; width: 100%; }
.image-preview-block--large { padding: 14px; border-radius: 2px; background: #07071a; border: 2px solid var(--line-dim); }
.image-preview-block--large img { max-height: 320px; object-fit: contain; width: 100%; }

/* ── Tool-specific overrides ── */
body[data-tool-id="area-mosaic"] .tool-layout,
body[data-tool-id="area-blur"] .tool-layout { grid-template-columns: 1fr; gap: 16px; }
body[data-tool-id="area-mosaic"] .tips-panel, body[data-tool-id="area-blur"] .tips-panel,
body[data-tool-id="area-mosaic"] .panel-list, body[data-tool-id="area-blur"] .panel-list,
body[data-tool-id="area-mosaic"] main > .section, body[data-tool-id="area-blur"] main > .section { display: none; }
body[data-tool-id="area-mosaic"] .page-hero, body[data-tool-id="area-blur"] .page-hero { padding: 8px 0 6px; }
body[data-tool-id="area-mosaic"] .tool-layout, body[data-tool-id="area-blur"] .tool-layout { padding-bottom: 24px; }
body[data-tool-id="area-mosaic"] .tool-shell, body[data-tool-id="area-blur"] .tool-shell { padding: 18px; }
body[data-tool-id="button-image-generator"] .tool-layout, body[data-tool-id="icon-generator"] .tool-layout { grid-template-columns: 1fr; gap: 16px; padding-bottom: 24px; }
body[data-tool-id="button-image-generator"] .tips-panel, body[data-tool-id="button-image-generator"] .panel-list, body[data-tool-id="button-image-generator"] main > .section,
body[data-tool-id="icon-generator"] .tips-panel, body[data-tool-id="icon-generator"] .panel-list, body[data-tool-id="icon-generator"] main > .section { display: none; }
body[data-tool-id="button-image-generator"] .page-hero, body[data-tool-id="icon-generator"] .page-hero { padding: 8px 0 6px; }
body[data-tool-id="button-image-generator"] .tool-shell, body[data-tool-id="icon-generator"] .tool-shell { padding: 18px; }

/* ── Tips panel ── */
.tips-panel h2 { font-size: 0.84rem; letter-spacing: 0.06em; color: var(--accent); }
.tips-panel ul { margin-top: 10px; }
.tips-panel li { font-size: 0.86rem; line-height: 1.7; }

/* ── Fields ── */
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field-grid--single { grid-template-columns: 1fr; }
.field label, .control-block label { display: block; margin-bottom: 8px; font-size: 0.95rem; letter-spacing: 0.03em; color: var(--muted); }
.toolbar, .checkbox-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.checkbox-row label { margin: 0; display: inline-flex; align-items: center; gap: 8px; }
.checkbox-row input[type="checkbox"] { width: auto; accent-color: var(--accent); }

/* ── Panel list ── */
.panel-list { display: grid; gap: 16px; }
@media (min-width: 981px) { .panel-list { align-self: start; position: sticky; top: 80px; } }

.content-panel, .notice, .faq, .footer-panel { padding: 24px; }
.content-panel ul, .faq ul, .content-panel ol { margin: 12px 0 0; padding-left: 18px; color: var(--muted); line-height: 1.85; }
.content-panel li + li, .faq li + li { margin-top: 8px; }

/* ── Status ── */
.status { font-size: 0.88rem; letter-spacing: 0.04em; }
.status--error { color: var(--danger); text-shadow: 0 0 8px rgba(255,85,85,0.4); }
.status--success { color: var(--success); text-shadow: 0 0 8px rgba(68,232,136,0.3); }
.status--neutral { color: var(--muted); }

/* ── Output box ── */
.output-box { border-radius: 2px; border: 2px solid var(--line-dim); background: #07071a; padding: 16px; }
.output-box pre { margin: 0; white-space: pre-wrap; word-break: break-word; line-height: 1.65; font-family: 'SFMono-Regular', 'Menlo', monospace; font-size: 0.88rem; color: var(--text-dim); }

/* ── Footer ── */
.site-footer { padding: 0 0 60px; }
.site-footer__inner { display: grid; gap: 16px; }
.footer-panel { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: 0.86rem; }
.footer-links a:hover { color: var(--accent); }

/* ── FAQ ── */
.faq details { padding: 16px 0; border-top: 1px solid var(--line-dim); }
.faq details:first-of-type { border-top: 0; padding-top: 0; }
.faq summary { cursor: pointer; color: var(--text-dim); }
.faq p { color: var(--muted); line-height: 1.85; margin-top: 8px; }

/* ── Utility ── */
.hide { display: none !important; }

/* ── Responsive ── */
@media (max-width: 980px) {
  .tool-layout { grid-template-columns: 1fr; }
  .quick-start-links { grid-template-columns: 1fr; }
  .selection-workbench { grid-template-columns: 1fr; }
  .button-studio { grid-template-columns: 1fr; }
  .button-studio__preview { position: static; }
  .selection-controls { grid-template-columns: 1fr 1fr; }
  .field-grid { grid-template-columns: 1fr; }
  .section__header, .footer-panel { flex-direction: column; align-items: start; }
  .hero-inner { flex-direction: column; }
  .hero-mascot { order: -1; }
}

@media (max-width: 720px) {
  .site-header__inner { min-height: auto; padding: 14px 0; flex-direction: column; align-items: flex-start; }
  .site-nav { flex-wrap: wrap; }
  .site-hero { padding: 36px 0 32px; }
  .hero-title { font-size: clamp(1.5rem, 7vw, 2rem); }
  .hero-mascot img { width: 100px; }
  .filter-pills { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 6px; }
  .search-box--wide { width: 100%; }
  .tools-grid { grid-template-columns: 1fr; }
  .selection-controls { grid-template-columns: 1fr; }
  .preset-grid { grid-template-columns: 1fr; }
  body[data-tool-id="area-mosaic"] #tool-selection-canvas, body[data-tool-id="area-blur"] #tool-selection-canvas { max-height: 52vh; }
  body[data-tool-id="area-mosaic"] .selection-workbench__side, body[data-tool-id="area-blur"] .selection-workbench__side { gap: 10px; }
  body[data-tool-id="area-mosaic"] .toolbar--compact, body[data-tool-id="area-blur"] .toolbar--compact {
    position: sticky; bottom: 10px; z-index: 5; padding: 10px 12px; border-radius: 2px;
    background: rgba(7,7,26,0.94); border: 2px solid var(--line-dim); box-shadow: 0 10px 24px rgba(0,0,0,0.4);
  }
  body[data-tool-id="area-mosaic"] .toolbar--compact button, body[data-tool-id="area-blur"] .toolbar--compact button { flex: 1 1 auto; justify-content: center; }
  body[data-tool-id="area-mosaic"] .selection-details summary, body[data-tool-id="area-blur"] .selection-details summary { min-height: 40px; display: flex; align-items: center; }
  .tool-section__header { flex-direction: column; align-items: flex-start; }
  .hero__panel, .tool-shell, .content-panel, .notice, .faq, .footer-panel { padding: 18px; }
  .preview-stack--light { width: 100%; margin-left: 0; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #07071a; }
::-webkit-scrollbar-thumb { background: rgba(160,180,255,0.4); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Selection ── */
::selection { background: rgba(140,160,255,0.3); color: #d0e4ff; }