/* ============================================================
   ffee · shared stylesheet
   Multi-language online toolbox — English primary
   ============================================================ */

/* ------------------------------------------------------------
   Tokens
   ------------------------------------------------------------ */
:root {
  --bg:        #f7f7f8;
  --bg-elev:   #ffffff;
  --bg-subtle: #f0f0f2;
  --bg-hover:  #f5f5f7;
  --border:    #e5e5e8;
  --border-strong:#d0d0d5;
  --text:      #111114;
  --text-muted:#5c5c66;
  --text-faint:#9a9aa3;

  --c-image:   #ff6b35;
  --c-text:    #2f7cf6;
  --c-dev:     #7c4dff;
  --c-convert: #00b884;
  --c-calc:    #ff3d8b;
  --c-custom:  #ffb020;
  --c-time:    #00a6d6;
  --c-color:   #a259ff;
  --c-random:  #f59e0b;
  --c-security:#ef4444;

  --c-pdf:     #e11d48;
  --c-media:   #8b5cf6;
  --c-web:     #0ea5e9;
  --c-finance: #10b981;
  --c-health:  #f43f5e;
  --c-edu:     #6366f1;
  --c-data:    #f59e0b;

  --radius:    8px;
  --radius-lg: 12px;
  --sidebar-w: 232px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0d0d10;
    --bg-elev:   #16161a;
    --bg-subtle: #1d1d22;
    --bg-hover:  #1a1a1f;
    --border:    #26262c;
    --border-strong:#3a3a42;
    --text:      #f5f5f7;
    --text-muted:#a0a0aa;
    --text-faint:#6a6a75;

    --c-image:   #ff8a5c;
    --c-text:    #5c9aff;
    --c-dev:     #a684ff;
    --c-convert: #33d4a3;
    --c-calc:    #ff6ba8;
    --c-custom:  #ffc44d;
    --c-time:    #00a6d6;
    --c-color:   #a259ff;
    --c-random:  #f59e0b;
    --c-security:#ef4444;

    --c-pdf:     #fb7185;
    --c-media:   #a78bfa;
    --c-web:     #38bdf8;
    --c-finance: #34d399;
    --c-health:  #fb7185;
    --c-edu:     #818cf8;
    --c-data:    #fbbf24;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }
img { max-width: 100%; }

/* ============================================================
   Home layout
   ============================================================ */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 4px 6px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}

.nav-group { display: flex; flex-direction: column; gap: 1px; }

.nav-label {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  padding: 6px 8px 5px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 8px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: background .12s, color .12s;
  position: relative;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text); }

.nav-item .swatch {
  width: 8px; height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

.nav-item[data-cat="all"] .swatch {
  background: conic-gradient(var(--c-image), var(--c-dev), var(--c-text), var(--c-convert), var(--c-calc), var(--c-image));
}
.nav-item[data-cat="image"]   .swatch { background: var(--c-image); }
.nav-item[data-cat="text"]    .swatch { background: var(--c-text); }
.nav-item[data-cat="dev"]     .swatch { background: var(--c-dev); }
.nav-item[data-cat="convert"] .swatch { background: var(--c-convert); }
.nav-item[data-cat="calc"]    .swatch { background: var(--c-calc); }
.nav-item[data-cat="custom"]  .swatch { background: var(--c-custom); }
.nav-item[data-cat="time"]     .swatch { background: var(--c-time); }
.nav-item[data-cat="color"]    .swatch { background: var(--c-color); }
.nav-item[data-cat="random"]   .swatch { background: var(--c-random); }
.nav-item[data-cat="security"] .swatch { background: var(--c-security); }

/* 新增顶层分类 */
.nav-item[data-cat="pdf"]     .swatch { background: var(--c-pdf); }
.nav-item[data-cat="media"]   .swatch { background: var(--c-media); }
.nav-item[data-cat="web"]     .swatch { background: var(--c-web); }
.nav-item[data-cat="finance"] .swatch { background: var(--c-finance); }
.nav-item[data-cat="health"]  .swatch { background: var(--c-health); }
.nav-item[data-cat="edu"]     .swatch { background: var(--c-edu); }
.nav-item[data-cat="data"]    .swatch { background: var(--c-data); }

/* 子分类继承父分类颜色（前缀匹配） */
.nav-item[data-cat^="image-"]   .swatch { background: var(--c-image); }
.nav-item[data-cat^="text-"]    .swatch { background: var(--c-text); }
.nav-item[data-cat^="dev-"]     .swatch { background: var(--c-dev); }
.nav-item[data-cat^="convert-"] .swatch { background: var(--c-convert); }
.nav-item[data-cat^="calc-"]    .swatch { background: var(--c-calc); }
.nav-item[data-cat^="time-"]    .swatch { background: var(--c-time); }
.nav-item[data-cat^="color-"]   .swatch { background: var(--c-color); }
.nav-item[data-cat^="random-"]  .swatch { background: var(--c-random); }
.nav-item[data-cat^="security-"].swatch { background: var(--c-security); }
.nav-item[data-cat^="pdf-"]     .swatch { background: var(--c-pdf); }
.nav-item[data-cat^="media-"]   .swatch { background: var(--c-media); }
.nav-item[data-cat^="web-"]     .swatch { background: var(--c-web); }
.nav-item[data-cat^="finance-"] .swatch { background: var(--c-finance); }
.nav-item[data-cat^="health-"]  .swatch { background: var(--c-health); }
.nav-item[data-cat^="life-"]    .swatch { background: var(--c-health); }
.nav-item[data-cat^="edu-"]     .swatch { background: var(--c-edu); }
.nav-item[data-cat^="data-"]    .swatch { background: var(--c-data); }
.nav-item[data-cat^="doc-"]     .swatch { background: var(--c-pdf); }

.nav-item.active {
  background: var(--bg-subtle);
  color: var(--text);
  font-weight: 600;
}

.nav-item .name { flex: 1; }

.nav-count {
  font-size: 11px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.side-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  font-size: 12.5px;
  color: var(--text-muted);
  transition: background .12s, color .12s;
  text-align: left;
}

.side-btn:hover { background: var(--bg-hover); color: var(--text); }

.side-btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.side-btn.primary { color: var(--c-image); font-weight: 600; }

.side-btn.primary:hover { background: color-mix(in srgb, var(--c-image) 10%, transparent); }

.sidebar-footer {
  margin-top: auto;
  padding: 12px 8px 0;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-faint);
  line-height: 1.7;
}

.sidebar-footer a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 2px; }

/* ============================================================
   Language switcher
   ============================================================ */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 2px;
  flex-shrink: 0;
}

.lang-switch a {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 5px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.lang-switch a:hover { color: var(--text); background: var(--bg-subtle); }
.lang-switch a.active { background: var(--bg-subtle); color: var(--text); }

/* ============================================================
   Main
   ============================================================ */
.main {
  padding: 30px 36px 64px;
  max-width: 1120px;
}

.page-head { margin-bottom: 22px; }

.page-title {
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title::before {
  content: '';
  width: 10px; height: 22px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--c-image), var(--c-dev));
  flex-shrink: 0;
}

.page-desc { color: var(--text-muted); font-size: 13.5px; }

/* ============================================================
   Search
   ============================================================ */
.search-wrap { margin-bottom: 30px; position: relative; }

.search-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  height: 46px;
  background: var(--bg-subtle);
  border: 1.5px solid transparent;
  border-radius: var(--radius-lg);
  transition: all .15s;
}

.search-inner:focus-within {
  background: var(--bg-elev);
  border-color: var(--c-image);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-image) 12%, transparent);
}

.search-icon { color: var(--text-faint); display: flex; flex-shrink: 0; }
.search-icon svg { width: 17px; height: 17px; }

.search-input {
  flex: 1;
  border: none; outline: none; background: transparent;
  color: var(--text); font-size: 14px;
}

.search-input::placeholder { color: var(--text-faint); }

.search-kbd {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-faint);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 1px 5px;
  flex-shrink: 0;
}

.hint {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px;
  z-index: 20;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0,0,0,.1);
}

.hint-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}

.hint-item:hover, .hint-item.active { background: var(--bg-hover); }

.hint-code {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--c-image);
  color: #fff;
  padding: 1px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  font-weight: 600;
}

.hint-name { flex: 1; }

.hint-url {
  font-size: 11px;
  color: var(--text-faint);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   Section / cards
   ============================================================ */
.section { margin-bottom: 36px; }

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 13px;
}

.section-title {
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title::before {
  content: '';
  width: 3px; height: 13px;
  border-radius: 2px;
  background: var(--c-image);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 11px;
}

.featured-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px 15px 18px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all .15s;
  position: relative;
  overflow: hidden;
}

.featured-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--fc, var(--c-dev));
  transition: width .15s;
}

.featured-card:hover { border-color: var(--border-strong); background: var(--bg-hover); }
.featured-card:hover::before { width: 5px; }

.featured-card[data-cat="image"]   { --fc: var(--c-image); }
.featured-card[data-cat="text"]    { --fc: var(--c-text); }
.featured-card[data-cat="dev"]     { --fc: var(--c-dev); }
.featured-card[data-cat="convert"] { --fc: var(--c-convert); }
.featured-card[data-cat="calc"]    { --fc: var(--c-calc); }
.featured-card[data-cat="custom"]  { --fc: var(--c-custom); }
.featured-card[data-cat="time"]    { --fc: var(--c-time); }
.featured-card[data-cat="color"]   { --fc: var(--c-color); }
.featured-card[data-cat="random"]  { --fc: var(--c-random); }
.featured-card[data-cat="security"] { --fc: var(--c-security); }

/* 新增顶层分类 */
.featured-card[data-cat="pdf"]     { --fc: var(--c-pdf); }
.featured-card[data-cat="media"]   { --fc: var(--c-media); }
.featured-card[data-cat="web"]     { --fc: var(--c-web); }
.featured-card[data-cat="finance"] { --fc: var(--c-finance); }
.featured-card[data-cat="health"]  { --fc: var(--c-health); }
.featured-card[data-cat="edu"]     { --fc: var(--c-edu); }
.featured-card[data-cat="data"]    { --fc: var(--c-data); }

/* 子分类继承父分类颜色（前缀匹配） */
.featured-card[data-cat^="image-"]   { --fc: var(--c-image); }
.featured-card[data-cat^="text-"]    { --fc: var(--c-text); }
.featured-card[data-cat^="dev-"]     { --fc: var(--c-dev); }
.featured-card[data-cat^="convert-"] { --fc: var(--c-convert); }
.featured-card[data-cat^="calc-"]    { --fc: var(--c-calc); }
.featured-card[data-cat^="time-"]    { --fc: var(--c-time); }
.featured-card[data-cat^="color-"]   { --fc: var(--c-color); }
.featured-card[data-cat^="random-"]  { --fc: var(--c-random); }
.featured-card[data-cat^="security-"]{ --fc: var(--c-security); }
.featured-card[data-cat^="pdf-"]     { --fc: var(--c-pdf); }
.featured-card[data-cat^="media-"]   { --fc: var(--c-media); }
.featured-card[data-cat^="web-"]     { --fc: var(--c-web); }
.featured-card[data-cat^="finance-"] { --fc: var(--c-finance); }
.featured-card[data-cat^="health-"]  { --fc: var(--c-health); }
.featured-card[data-cat^="life-"]    { --fc: var(--c-health); }
.featured-card[data-cat^="edu-"]     { --fc: var(--c-edu); }
.featured-card[data-cat^="data-"]    { --fc: var(--c-data); }
.featured-card[data-cat^="doc-"]     { --fc: var(--c-pdf); }

.featured-icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  display: grid; place-items: center;
  flex-shrink: 0;
  color: #fff;
  background: var(--fc, var(--c-dev));
}

.featured-icon svg { width: 19px; height: 19px; }

.featured-body { min-width: 0; flex: 1; }

.featured-body h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.featured-body p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 9px;
}

.tool-card {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 12px 12px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all .15s;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--tc, var(--c-dev));
  transition: width .15s;
}

.tool-card:hover { border-color: var(--border-strong); background: var(--bg-hover); }
.tool-card:hover::before { width: 4px; }

.tool-card[data-cat="image"]   { --tc: var(--c-image); }
.tool-card[data-cat="text"]    { --tc: var(--c-text); }
.tool-card[data-cat="dev"]     { --tc: var(--c-dev); }
.tool-card[data-cat="convert"] { --tc: var(--c-convert); }
.tool-card[data-cat="calc"]    { --tc: var(--c-calc); }
.tool-card[data-cat="custom"]  { --tc: var(--c-custom); }
.tool-card[data-cat="time"]     { --tc: var(--c-time); }
.tool-card[data-cat="color"]    { --tc: var(--c-color); }
.tool-card[data-cat="random"]   { --tc: var(--c-random); }
.tool-card[data-cat="security"] { --tc: var(--c-security); }

/* 新增顶层分类 */
.tool-card[data-cat="pdf"]     { --tc: var(--c-pdf); }
.tool-card[data-cat="media"]   { --tc: var(--c-media); }
.tool-card[data-cat="web"]     { --tc: var(--c-web); }
.tool-card[data-cat="finance"] { --tc: var(--c-finance); }
.tool-card[data-cat="health"]  { --tc: var(--c-health); }
.tool-card[data-cat="edu"]     { --tc: var(--c-edu); }
.tool-card[data-cat="data"]    { --tc: var(--c-data); }

/* 子分类继承父分类颜色（前缀匹配） */
.tool-card[data-cat^="image-"]   { --tc: var(--c-image); }
.tool-card[data-cat^="text-"]    { --tc: var(--c-text); }
.tool-card[data-cat^="dev-"]     { --tc: var(--c-dev); }
.tool-card[data-cat^="convert-"] { --tc: var(--c-convert); }
.tool-card[data-cat^="calc-"]    { --tc: var(--c-calc); }
.tool-card[data-cat^="time-"]    { --tc: var(--c-time); }
.tool-card[data-cat^="color-"]   { --tc: var(--c-color); }
.tool-card[data-cat^="random-"]  { --tc: var(--c-random); }
.tool-card[data-cat^="security-"]{ --tc: var(--c-security); }
.tool-card[data-cat^="pdf-"]     { --tc: var(--c-pdf); }
.tool-card[data-cat^="media-"]   { --tc: var(--c-media); }
.tool-card[data-cat^="web-"]     { --tc: var(--c-web); }
.tool-card[data-cat^="finance-"] { --tc: var(--c-finance); }
.tool-card[data-cat^="health-"]  { --tc: var(--c-health); }
.tool-card[data-cat^="life-"]    { --tc: var(--c-health); }
.tool-card[data-cat^="edu-"]     { --tc: var(--c-edu); }
.tool-card[data-cat^="data-"]    { --tc: var(--c-data); }
.tool-card[data-cat^="doc-"]     { --tc: var(--c-pdf); }

.tool-icon {
  width: 30px; height: 30px;
  border-radius: 7px;
  display: grid; place-items: center;
  flex-shrink: 0;
  background: var(--tc, var(--c-dev));
  color: #fff;
}

.tool-icon svg { width: 15px; height: 15px; }

.tool-meta { min-width: 0; flex: 1; }

.tool-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 5px;
}

.tool-desc {
  font-size: 11.5px;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge-custom {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1px 4px;
  border-radius: 3px;
  background: color-mix(in srgb, var(--c-custom) 18%, transparent);
  color: var(--c-custom);
  flex-shrink: 0;
  text-transform: uppercase;
}

.card-actions {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity .12s;
  background: var(--bg-elev);
  padding: 2px;
  border-radius: 6px;
}

.tool-card:hover .card-actions { opacity: 1; }

.card-act {
  width: 24px; height: 24px;
  border-radius: 5px;
  display: grid; place-items: center;
  color: var(--text-muted);
  transition: background .12s, color .12s;
}

.card-act:hover { background: var(--bg-subtle); color: var(--text); }
.card-act.danger:hover { color: #ef4444; }
.card-act svg { width: 13px; height: 13px; }

.empty {
  padding: 44px 20px;
  text-align: center;
  color: var(--text-faint);
}

.empty svg { width: 30px; height: 30px; margin-bottom: 10px; opacity: .5; }
.empty-title { font-size: 14px; color: var(--text-muted); margin-bottom: 4px; }
.empty-hint { font-size: 12px; }

.site-footer {
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 2px; }

/* ============================================================
   Tool page — top header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-header .brand { padding: 0; font-size: 15px; }
.site-header .spacer { flex: 1; }

.header-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text-muted);
  padding: 5px 9px;
  border-radius: 6px;
  transition: background .12s, color .12s;
}

.header-back:hover { background: var(--bg-subtle); color: var(--text); }
.header-back svg { width: 14px; height: 14px; }

.tool-page { max-width: 900px; margin: 0 auto; padding: 28px 20px 64px; }

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 18px;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text); text-decoration: underline; }
.breadcrumb .sep { color: var(--text-faint); }

/* ============================================================
   Tool hero
   ============================================================ */
.tool-hero { margin-bottom: 26px; }

.tool-hero h1 {
  font-size: 30px;
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 10px;
}

.tool-hero .lead {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 680px;
}

/* ============================================================
   Tool workspace
   ============================================================ */
.tool-workspace {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 24px;
}

.tool-workspace h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-workspace h2::before {
  content: '';
  width: 3px; height: 14px;
  border-radius: 2px;
  background: var(--c-image);
}

/* Forms / controls inside workspace */
.ctl-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }

.ctl-row textarea,
.ctl-row input[type="text"],
.ctl-row input[type="number"],
.ctl-row input[type="url"] {
  flex: 1;
  min-width: 200px;
  padding: 10px 12px;
  background: var(--bg-subtle);
  border: 1.5px solid transparent;
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: all .15s;
  resize: vertical;
}

.ctl-row textarea:focus,
.ctl-row input:focus {
  background: var(--bg-elev);
  border-color: var(--c-image);
}

.ctl-row textarea { min-height: 110px; font-family: var(--mono); font-size: 13px; }
.ctl-row input[readonly] { color: var(--text-muted); }

.btn {
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: all .15s;
  white-space: nowrap;
}

.btn-primary { background: var(--c-image); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }

.btn-ghost { color: var(--text-muted); background: var(--bg-subtle); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

.btn-block { width: 100%; }

.ctl-select {
  padding: 10px 12px;
  background: var(--bg-subtle);
  border: 1.5px solid transparent;
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.ctl-select:focus { background: var(--bg-elev); border-color: var(--c-image); }

.ctl-label { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; display: block; }

.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 34px 20px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .15s;
}

.dropzone:hover, .dropzone.drag { border-color: var(--c-image); background: var(--bg-subtle); }
.dropzone svg { width: 28px; height: 28px; margin-bottom: 8px; opacity: .6; }

.result-panel {
  background: var(--bg-subtle);
  border-radius: var(--radius);
  padding: 14px;
  margin-top: 12px;
}

.result-panel pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
}

.stat-line { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

.meta-note { font-size: 11.5px; color: var(--text-faint); margin-top: 12px; }

/* ============================================================
   Ad slot placeholder
   ============================================================ */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  margin: 22px 0;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-subtle);
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   Related tools (inline links above FAQ)
   ============================================================ */
.related-tools { margin-bottom: 24px; }

.related-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-muted);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.related-links a {
  padding: 8px 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12.5px;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all .12s;
}

.related-links a:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--bg-hover);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq { margin: 8px 0 20px; }

.faq-head {
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
  margin: 8px 0 6px;
}

.faq-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }

.faq-item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.faq-q:hover { background: var(--bg-hover); }

.faq-q .chev { flex-shrink: 0; width: 16px; height: 16px; color: var(--text-faint); transition: transform .15s; }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }

.faq-a {
  display: none;
  padding: 0 16px 15px;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

.faq-item.open .faq-a { display: block; }

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show { display: flex; }

.modal {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-head h2 {
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-head h2::before {
  content: '';
  width: 3px; height: 14px;
  border-radius: 2px;
  background: var(--c-image);
}

.modal-close {
  width: 28px; height: 28px;
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
}

.modal-close:hover { background: var(--bg-subtle); color: var(--text); }

.modal-body { padding: 18px 20px 20px; }

.field { margin-bottom: 14px; }

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 9px 11px;
  background: var(--bg-subtle);
  border: 1.5px solid transparent;
  border-radius: 7px;
  color: var(--text);
  font-size: 13.5px;
  outline: none;
  transition: all .15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  background: var(--bg-elev);
  border-color: var(--c-image);
}

.field textarea { resize: vertical; min-height: 60px; }

.field-hint { font-size: 11px; color: var(--text-faint); margin-top: 4px; }

.modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}

.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover { filter: brightness(1.08); }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text);
  color: var(--bg-elev);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  transition: all .25s;
  pointer-events: none;
}

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

/* ============================================================
   Mobile
   ============================================================ */
.mobile-bar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  align-items: center;
  gap: 12px;
}

.mobile-bar .brand { padding: 0; font-size: 15px; }

.menu-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 7px;
  border: 1px solid var(--border);
}

.menu-btn svg { width: 17px; height: 17px; }

.scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 45;
}

.scrim.show { display: block; }

@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }

  .sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 260px;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: 0 0 40px rgba(0,0,0,.15);
  }

  .sidebar.open { transform: translateX(0); }

  .mobile-bar { display: flex; }

  .main { padding: 20px 16px 48px; }
  .page-title { font-size: 21px; }
  .hint-url { display: none; }
  .featured-grid { grid-template-columns: 1fr; }
  .tool-hero h1 { font-size: 24px; }
  .site-header { padding: 10px 14px; }
  .tool-page { padding: 20px 14px 48px; }
  .related-links { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   How to use / Features / Last updated
   ============================================================ */
.how-to,
.features {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 24px;
}

.how-to h2,
.features h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.how-to h2::before,
.features h2::before {
  content: '';
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--c-image);
  flex-shrink: 0;
}

.how-to ol,
.features ul {
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.8;
}

.how-to li,
.features li {
  margin-bottom: 6px;
}

.how-to li:last-child,
.features li:last-child {
  margin-bottom: 0;
}

.how-to strong {
  color: var(--text);
  font-weight: 600;
}

.last-updated {
  font-size: 12px;
  color: var(--text-faint);
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

@media (max-width: 820px) {
  .how-to,
  .features {
    padding: 18px 16px;
  }
}

/* ============================================================
   Homepage v2 (two-level nav, tabs, favourites)
   ============================================================ */
.tabs-wrap { margin-top: 8px; }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border, #e5e7eb);
  margin-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  position: relative;
  padding: 10px 16px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-faint, #6b7280);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .15s, border-color .15s;
  font-family: inherit;
}
.tab:hover { color: var(--text, #111827); }
.tab.active {
  color: var(--text, #111827);
  border-bottom-color: var(--accent, #6366f1);
}
.tab .tab-count {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-soft, #f3f4f6);
  font-size: 11px;
  color: var(--text-faint, #6b7280);
}
.tab.active .tab-count {
  background: var(--accent-soft, #eef2ff);
  color: var(--accent, #6366f1);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.block-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text, #111827);
}
.block-head .block-hint {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-faint, #9ca3af);
}

.tab-empty {
  padding: 48px 20px;
  text-align: center;
  color: var(--text-faint, #9ca3af);
  font-size: 13px;
}
.tab-empty svg {
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  opacity: .5;
}

.tab-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 20px 0 8px;
}
.tab-actions button {
  padding: 8px 18px;
  border-radius: 8px;
  border: 1px solid var(--border, #e5e7eb);
  background: #fff;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  color: var(--text, #111827);
}
.tab-actions button:hover {
  background: var(--bg-soft, #f9fafb);
  border-color: #d1d5db;
}

.tool-card { position: relative; }
.card-star {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .15s, background .15s;
  z-index: 2;
  color: #9ca3af;
}
.tool-card:hover .card-star { opacity: .7; }
.card-star:hover { opacity: 1 !important; background: rgba(0,0,0,.05); }
.card-star.active { opacity: 1; color: #f59e0b; }
.card-star svg { width: 16px; height: 16px; }

.badge-featured {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 4px;
  background: #fef3c7;
  color: #d97706;
  font-size: 10px;
  font-weight: 600;
  vertical-align: middle;
}

/* ============ Sidebar: two-level ============ */
.nav-item .nav-caret {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  transition: transform .18s ease;
  color: var(--text-faint, #9ca3af);
}
.nav-item .nav-caret svg { width: 14px; height: 14px; }
.nav-item .nav-caret.open { transform: rotate(90deg); }

.nav-item.has-children .name { font-weight: 500; }
.nav-item .name { flex: 1; }

.nav-sub {
  margin-left: 14px;
  padding-left: 8px;
  border-left: 1px solid var(--border, #e5e7eb);
  margin-bottom: 4px;
}

.nav-item.sub {
  font-size: 13px;
  padding-top: 5px;
  padding-bottom: 5px;
}
.nav-item.sub .name { opacity: .85; }
.nav-item.sub .nav-count { font-size: 11px; }