:root{
  --bg:#071118;--panel:#101c2b;--panel-2:#15263a;--text:#edf6ff;--muted:#adc0d5;--line:#2d4058;
  --accent:#79dcff;--accent-2:#b6f0ff;--success:#9ce3b0;--shadow:0 10px 24px rgba(0,0,0,.22);
  --theme-toggle-bg:#142336;--theme-toggle-text:#ffdd3d;--theme-toggle-border:#36516f;--theme-toggle-shadow:0 8px 18px rgba(0,0,0,.28);
}
body.light{
  --bg:#f5f7fb;--panel:#ffffff;--panel-2:#f0f4fa;--text:#122033;--muted:#4d617e;--line:#d6e0ef;
  --accent:#0b66d8;--accent-2:#074ba2;--success:#1f7a3d;--shadow:0 10px 24px rgba(11,18,32,.08);
  --theme-toggle-bg:#ffffff;--theme-toggle-text:#1f3452;--theme-toggle-border:#cdd9e8;--theme-toggle-shadow:0 8px 18px rgba(11,18,32,.12);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(180deg,var(--bg),#0f1728 18%,var(--bg));color:var(--text);line-height:1.6}
body.light{background:linear-gradient(180deg,var(--bg),#eef4fb 22%,var(--bg))}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.container{max-width:1180px;margin:0 auto;padding:20px}
.topbar{display:flex;gap:18px;align-items:center;justify-content:space-between;padding:16px 18px;border:1px solid var(--line);background:rgba(255,255,255,.03);border-radius:18px;backdrop-filter:blur(10px);position:sticky;top:14px;z-index:20}
.brand{font-weight:800;font-size:1.15rem;color:var(--text)}
.site-nav{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.site-nav a{padding:8px 10px;border-radius:10px;color:var(--muted)}
.site-nav a[aria-current="page"], .site-nav a:hover{background:var(--panel-2);color:var(--text);text-decoration:none}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;flex:0 0 44px;border:1px solid var(--theme-toggle-border);background:var(--theme-toggle-bg);color:var(--theme-toggle-text);box-shadow:var(--theme-toggle-shadow);padding:0;border-radius:12px;cursor:pointer}
.theme-toggle svg{width:20px;height:20px;display:block}
.theme-toggle:hover{transform:translateY(-1px)}
.hero,.tool-card,.info-card,.faq-card,.share-card,.support-card,.article-card,.tool-group{background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:24px;margin-top:22px}
.hero{padding:28px}
.hero h1{font-size:clamp(2rem,3.5vw,3rem);line-height:1.1;margin:.1rem 0 1rem}
.hero p{font-size:1.05rem;max-width:820px;color:var(--muted)}
.breadcrumbs{margin-top:18px}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.breadcrumbs a,.breadcrumbs span{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--panel-2);color:var(--muted)}
.breadcrumbs span{color:var(--text)}
.site-section-nav,.support-actions,.btn-row,.share-buttons,.form-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.site-section-nav{margin-top:16px}
.site-section-nav a,.button-link,.action-btn,.secondary-btn,.share-btn{
  display:inline-flex;align-items:center;justify-content:center;padding:11px 15px;border-radius:12px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font-weight:600;cursor:pointer
}
.site-section-nav a,.button-link,.action-btn,.secondary-btn,.share-btn,.tool-link-card,.related-tool,.brand{text-decoration:none}
.button-link,.action-btn{background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#07111f;border:none}
.secondary-btn,.share-btn{background:var(--panel-2)}
.button-link.secondary{background:var(--panel-2);border:1px solid var(--line);color:var(--text)}
.action-btn:hover,.secondary-btn:hover,.share-btn:hover,.button-link:hover,.site-section-nav a:hover{transform:translateY(-1px);text-decoration:none}
.textarea-wrap textarea,.textarea-wrap pre,.textarea-wrap input,.form-row input,.form-row select{
  width:100%;background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:16px;padding:16px;font:inherit;min-height:240px
}
body.light .textarea-wrap textarea,body.light .textarea-wrap pre,body.light .textarea-wrap input,body.light .form-row input,body.light .form-row select{background:#fff}
.textarea-wrap label,.form-row label{display:flex;flex-direction:column;gap:8px;flex:1 1 220px;color:var(--muted);font-weight:600}
.textarea-wrap textarea#output{min-height:220px}
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.tool-intro,.inline-note,.copy-status,.footer-note,.support-card p,.info-card p,.article-card p{color:var(--muted)}
.copy-status{min-height:1.5em;margin-top:10px}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:16px}
.result-box{border:1px solid var(--line);background:var(--panel-2);border-radius:16px;padding:14px}
.result-label{display:block;font-size:.9rem;color:var(--muted)}
.result-value{display:block;font-size:1.6rem;font-weight:800}
.tool-grid,.related-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.tool-link-card,.related-tool{display:block;padding:16px;border-radius:16px;background:var(--panel-2);border:1px solid var(--line);color:var(--text)}
.tool-link-card strong,.related-tool strong{display:block;margin-bottom:6px}
.tool-link-card span,.related-tool span{color:var(--muted)}
.tool-group-header{margin-bottom:14px}
.faq-list{display:grid;gap:14px}
.faq-item{padding:16px;border:1px solid var(--line);border-radius:16px;background:var(--panel-2)}
.faq-item h3{margin:.1rem 0 .4rem;font-size:1.02rem}
.compare-output,.analysis-output pre{white-space:pre-wrap;background:var(--panel-2);border:1px solid var(--line);border-radius:16px;padding:16px;min-height:180px;color:var(--text)}
table.analysis-table{width:100%;border-collapse:collapse;margin-top:14px}
.analysis-table th,.analysis-table td{border-bottom:1px solid var(--line);padding:10px;text-align:left}
.analysis-callout{padding:14px;border-radius:16px;background:var(--panel-2);border:1px solid var(--line);margin-top:12px}
.support-page-card{max-width:100%}
.support-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:stretch}
.support-panel,.support-qr-panel{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:22px}
.support-panel h2,.support-qr-panel h2{font-size:clamp(1.7rem,3vw,2.6rem);line-height:1.1;margin:0 0 16px}
.support-panel p,.support-qr-panel p{color:var(--muted)}
.coffee-button{background:#ffdd3d;color:#09111d;border:0}
.coffee-button:hover{color:#09111d}
.support-qr-panel{text-align:center}
.support-qr{display:block;width:min(180px,100%);height:auto;margin:22px auto 0;border-radius:8px;background:#fff}
.site-footer{margin-top:26px;padding:28px;border:1px solid var(--line);background:#061219;border-radius:0}
body.light .site-footer{background:#eef5fb}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.8fr;gap:28px}
.site-footer h2{font-size:1rem;margin-top:0}
.site-footer a{display:block;margin:6px 0}
.site-footer .footer-note a{display:inline;margin:0}
.footer-brand{font-size:2rem;line-height:1.1}
.footer-bottom{border-top:1px solid var(--line);margin-top:24px;padding-top:18px}
ul{padding-left:18px}
.article-card{font-size:1.02rem}
.disclosure-card{padding:14px;border:1px dashed var(--line);border-radius:8px;background:var(--panel-2)}
.recommendation-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:14px}
.recommendation-card{display:flex;flex-direction:column;gap:10px;min-height:220px;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--panel-2);color:var(--text)}
.recommendation-card h3{margin:0;font-size:1.1rem}
.recommendation-card p{margin:0;color:var(--muted)}
.recommendation-card .button-link{align-self:flex-start;margin-top:auto}
.coming-soon-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin-top:12px}
.coming-soon-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--panel-2)}
.status-pill{display:inline-flex;align-items:center;min-height:28px;padding:4px 9px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.85rem;font-weight:700}
@media (max-width:860px){
  .compare-grid,.footer-grid,.support-layout{grid-template-columns:1fr}
  .topbar{position:static}
  .site-nav{width:100%}
}


.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}
.hero-copy{display:flex;flex-direction:column;justify-content:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(124,196,255,.08);color:var(--accent);font-weight:700;font-size:.9rem;letter-spacing:.02em;margin-bottom:12px;width:max-content}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.hero-panel{background:linear-gradient(180deg,rgba(124,196,255,.10),rgba(124,196,255,.03));border:1px solid var(--line);border-radius:20px;padding:18px}
.hero-stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}
.hero-stat{padding:14px;border-radius:16px;background:var(--panel-2);border:1px solid var(--line)}
.hero-stat strong{display:block;font-size:1.5rem;line-height:1.1;margin-bottom:4px}
.home-tool-shell{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
.home-tool-side{display:grid;gap:14px}
.mini-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.mini-list li{padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:var(--panel-2)}
.section-header{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
.section-header p{margin:0;color:var(--muted)}
.feature-band{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.feature-pill{padding:16px;border-radius:18px;background:var(--panel-2);border:1px solid var(--line)}
.feature-pill strong{display:block;margin-bottom:6px}
.home-highlight{background:radial-gradient(circle at top right, rgba(124,196,255,.14), transparent 40%), var(--panel);}
@media (max-width:980px){.hero-grid,.home-tool-shell,.feature-band{grid-template-columns:1fr}}


.option-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:16px 0}
.check-card{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid var(--line);background:var(--panel-2);border-radius:14px}
.check-card input{width:18px;height:18px}
.inline-help{color:var(--muted);font-size:.95rem;margin-top:8px}
.output-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.output-chip{border:1px solid var(--line);background:var(--panel-2);padding:7px 10px;border-radius:999px;color:var(--muted);font-size:.9rem}

/* Compact form controls */
select{
  width:100%;
  max-width:260px;
  min-height:44px;
  height:44px;
  padding:10px 38px 10px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--text);
  appearance:auto;
}
.form-row select,
.tool-card select,
.controls-grid select{
  width:100%;
  max-width:260px;
  min-height:44px;
  height:44px;
}
.form-row{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:end;
}
.form-row label{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:180px;
  flex:0 1 260px;
}
.form-row input[type="number"]{
  width:120px;
  max-width:120px;
  min-height:44px;
  height:44px;
  padding:10px 12px;
}
textarea{
  min-height:180px;
  resize:vertical;
}
.tool-card,
.info-card,
.faq-card,
.share-card,
.support-card{
  overflow:hidden;
}
.btn-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin:14px 0 0;
}
.range-wrap{
  margin-top:14px;
}
.range-wrap input[type="range"]{
  width:min(360px, 100%);
}
.range-value{
  display:inline-block;
  min-width:52px;
  font-weight:700;
}





/* Homepage hero polish */
.hero-quick-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:16px 0 4px;
}
.hero-quick-links a{
  display:inline-flex;
  align-items:center;
  padding:9px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel-2);
  color:var(--text);
  text-decoration:none;
  font-size:.95rem;
}
.hero-quick-links a:hover{
  background:var(--accent-soft);
}
.brand span{ color:#8fb4ff; }


/* Username generator UX */
#usernameStyle,
#numberLength{
  width:100%;
  max-width:320px;
  min-height:52px;
  height:52px;
  line-height:1.35;
  padding-top:12px;
  padding-bottom:12px;
}

#suggestionCount{
  width:140px;
  max-width:140px;
}


/* Fixes: select clipping, field spacing, compare view */
.select-fix-marker{}

.form-row,
.range-wrap{
  margin-bottom: 18px;
}

.form-row label,
.range-wrap label{
  color: var(--muted);
  font-weight: 600;
}

select,
.form-row select,
.tool-card select,
.controls-grid select,
#usernameStyle,
#numberLength,
#lengthSelect,
#wordStyle,
#separatorSelect,
#modeSelect{
  min-height: 52px;
  height: 52px;
  line-height: 1.25;
  padding: 13px 42px 13px 16px;
  display: block;
}

.form-row input[type="number"],
#repeatCount,
#paragraphCount,
#wordCount,
#suggestionCount{
  min-height: 52px;
  height: 52px;
}

.range-wrap input[type="range"]{
  display: block;
  margin-top: 10px;
}

.compare-shell{
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

.compare-summary{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.compare-stat{
  border: 1px solid var(--line);
  background: var(--panel-2);
  border-radius: 16px;
  padding: 14px;
}

.compare-stat strong{
  display: block;
  font-size: 1.35rem;
  line-height: 1.1;
}

.compare-diff-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
}

.compare-column{
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-2);
  overflow: hidden;
}

.compare-column-header{
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.compare-column-body{
  max-height: 420px;
  overflow: auto;
}

.compare-line{
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

body.light .compare-line{
  border-bottom-color: rgba(11,18,32,0.06);
}

.compare-line-number{
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.compare-line-text{
  white-space: pre-wrap;
  word-break: break-word;
}

.compare-line.is-same{
  opacity: .72;
}

.compare-line.is-diff{
  background: rgba(124,196,255,0.08);
}

.compare-line.is-missing{
  background: rgba(255,120,120,0.08);
}

.compare-empty{
  color: var(--muted);
  font-style: italic;
}

.compare-output-legacy{
  white-space: pre-wrap;
}

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

#analysisOutput{margin-top:16px;display:grid;gap:14px;}
#analysisOutput table{width:100%;}
#output[readonly]{min-height:180px;}
body[data-tool-kind="ai_prompt_optimizer"] #output[readonly]{min-height:260px;}

body[data-tool-kind="seo_headline_analyzer"] .tool-card{
  display:grid;
  gap:14px;
}
body[data-tool-kind="seo_headline_analyzer"] #textInput{
  min-height:150px;
  font-size:1.05rem;
}
body[data-tool-kind="seo_headline_analyzer"] #output[readonly]{
  min-height:160px;
}
.headline-summary{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:12px;
}
.headline-summary-stat{
  border:1px solid var(--line);
  background:var(--panel-2);
  border-radius:16px;
  padding:14px;
}
.headline-summary-stat span{
  display:block;
  color:var(--muted);
  font-size:.9rem;
}
.headline-summary-stat strong{
  display:block;
  font-size:1.65rem;
  line-height:1.1;
  margin-top:4px;
}
.headline-results{
  display:grid;
  gap:14px;
}
.headline-result-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(121,220,255,.08),rgba(121,220,255,.02)),var(--panel-2);
  border-radius:18px;
  padding:16px;
}
.headline-result-card.is-best{
  border-color:var(--accent);
}
.headline-result-top{
  display:grid;
  grid-template-columns:86px minmax(0,1fr);
  gap:14px;
  align-items:center;
}
.headline-score-ring{
  --score:0;
  width:78px;
  aspect-ratio:1;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:
    radial-gradient(circle at center,var(--panel-2) 57%,transparent 58%),
    conic-gradient(var(--accent) calc(var(--score) * 1%),rgba(255,255,255,.10) 0);
  border:1px solid var(--line);
}
body.light .headline-score-ring{
  background:
    radial-gradient(circle at center,#fff 57%,transparent 58%),
    conic-gradient(var(--accent) calc(var(--score) * 1%),rgba(11,18,32,.10) 0);
}
.headline-score-ring span{
  font-size:1.45rem;
  line-height:1;
  font-weight:800;
}
.headline-score-ring small{
  display:block;
  color:var(--muted);
  font-size:.72rem;
  font-weight:700;
  margin-top:2px;
}
.headline-result-title{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.headline-result-title strong{
  min-width:0;
  word-break:break-word;
  font-size:1.05rem;
}
.headline-meter{
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  overflow:hidden;
  margin:14px 0;
}
body.light .headline-meter{background:rgba(11,18,32,.10)}
.headline-meter span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--success));
}
.headline-metrics{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(105px,1fr));
  gap:10px;
}
.headline-metrics span{
  border:1px solid var(--line);
  border-radius:12px;
  padding:9px 10px;
  color:var(--muted);
  background:rgba(255,255,255,.03);
}
body.light .headline-metrics span{background:rgba(11,18,32,.03)}
.headline-metrics strong{
  display:block;
  color:var(--text);
  font-size:1.2rem;
}
.headline-flags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
}
.headline-flags span{
  border:1px solid rgba(255,160,120,.45);
  background:rgba(255,160,120,.12);
  color:var(--text);
  border-radius:999px;
  padding:6px 9px;
  font-size:.9rem;
}
.headline-guidance-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
  margin-top:14px;
}
.headline-guidance-grid div{
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px;
  background:rgba(255,255,255,.03);
}
body.light .headline-guidance-grid div{background:rgba(11,18,32,.03)}
.headline-guidance-grid h3{
  margin:0 0 6px;
  font-size:1rem;
}
.headline-guidance-grid ul{
  margin:0;
  padding-left:18px;
  color:var(--muted);
}
@media (max-width:640px){
  .headline-result-top,.headline-guidance-grid{grid-template-columns:1fr}
}

.hero-actions .button-link{display:inline-flex;align-items:center;justify-content:center;}

.skip-link{position:absolute;left:-9999px;top:auto;background:#fff;color:#000;padding:10px 14px;z-index:1000;border:1px solid #000;}
.skip-link:focus{left:16px;top:16px;}