/* ============================================================
   DominateTools · UTM Builder — Premium Light UI (accent hue 250)
   Shared by /tools/utm-builder/ and its ~18 pSEO subpages.
   Class names + legacy custom properties preserved; restyled only.
   ============================================================ */

:root{
  --ink:oklch(24% .02 264);
  --muted:oklch(52% .03 264);
  --paper:oklch(97% .008 264);
  --surface:oklch(100% .002 264);
  --line:oklch(90% .015 264);
  --accent:oklch(56% .19 250);
  --accent-dark:oklch(46% .17 250);
  --accent-soft:oklch(94% .04 250);
  --danger:oklch(58% .2 25);
  --danger-soft:oklch(96% .03 25);
  --success:oklch(60% .13 155);
  --success-soft:oklch(94% .05 155);

  /* Legacy aliases consumed by pSEO subpage inline styles */
  --primary:var(--accent);
  --primary-hover:var(--accent-dark);
  --heading:var(--ink);
  --text-main:var(--ink);
  --text-muted:var(--muted);
  --bg-main:var(--paper);
  --card-bg:var(--surface);
  --border:var(--line);
  --input-bg:var(--surface);
  --error:var(--danger);
  --radius:14px;
  --panel-shadow:0 10px 34px oklch(24% .04 264 / .06);

  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  font-synthesis:none;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-size:16px;line-height:1.55;overflow-x:hidden}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
a{color:inherit}
code{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
img{max-width:100%}

/* ---------- Header ---------- */
.site-header{min-height:74px;display:flex;align-items:center;gap:32px;padding:0 clamp(16px,5vw,72px);border-bottom:1px solid var(--line);background:var(--surface);position:sticky;top:0;z-index:20}
.logo,.brand{font-size:18px;font-weight:850;letter-spacing:-.04em;text-decoration:none}
.logo span,.brand span{color:var(--accent)}
.site-header nav{display:flex;gap:24px;margin-left:auto;font-size:14px;color:var(--muted)}
.site-header nav a{text-decoration:none;transition:color .18s}
.site-header nav a:hover{color:var(--accent-dark)}

/* ---------- Layout ---------- */
.page-wrapper{max-width:1200px;margin:auto;padding:0 clamp(16px,5vw,72px) 80px}

/* ---------- Hero ---------- */
.hero{padding:60px 0 40px;max-width:840px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.1em;font-size:11px;font-weight:850;color:var(--accent-dark);background:var(--accent-soft);padding:7px 14px;border-radius:999px}
.page-title{font-size:clamp(40px,6.5vw,76px);line-height:1;letter-spacing:-.055em;margin:18px 0 18px;text-wrap:balance}
.page-subtitle{max-width:680px;color:var(--muted);font-size:18px;line-height:1.6}

/* ---------- App layout ---------- */
.app-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px;align-items:start}
.builder-panel,.results-panel{display:flex;flex-direction:column;gap:20px}
.results-panel{position:sticky;top:92px}
.panel-section{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--panel-shadow)}
.panel-section h2{font-size:17px;letter-spacing:-.02em;margin-bottom:16px}
.section-header-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.section-header-row h2{margin-bottom:0}
.hint{color:var(--muted);font-size:13px;margin-bottom:14px}

/* ---------- Inputs ---------- */
.input-group{margin-bottom:16px}
.input-group:last-child{margin-bottom:0}
.input-group label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:800;margin-bottom:8px}
.input-group label code{text-transform:none;letter-spacing:0;background:var(--accent-soft);color:var(--accent-dark);padding:1px 6px;border-radius:5px;font-size:.92em;font-weight:700}
.input-group input{width:100%;min-height:48px;padding:0 14px;font-size:16px;border:1px solid var(--line);border-radius:11px;background:var(--paper);color:var(--ink);transition:border-color .18s,box-shadow .18s}
.input-group input::placeholder{color:oklch(66% .02 264)}
.input-group input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.input-grid .full-width{grid-column:1 / -1}
.req{color:var(--danger);font-weight:800}
.opt{color:var(--muted);font-weight:700;text-transform:none;letter-spacing:0;font-size:11px}
.error-msg{color:var(--danger);font-size:13px;font-weight:600;margin-top:8px;min-height:1em}

/* ---------- Buttons ---------- */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border:1px solid var(--accent);border-radius:12px;background:var(--accent);color:oklch(99% .01 264);font-size:15px;font-weight:800;letter-spacing:-.01em;transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s,box-shadow .18s}
.btn-primary:hover{transform:translateY(-2px);background:var(--accent-dark);box-shadow:0 12px 28px oklch(56% .19 250 / .28)}
.full-width-btn{width:100%}
.btn-text{border:none;background:transparent;color:var(--accent-dark);font-size:13px;font-weight:800;padding:8px 6px;border-radius:8px;min-height:44px;transition:color .18s,background .18s}
.btn-text:hover{color:var(--accent);background:var(--accent-soft)}
.btn-action{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-size:13px;font-weight:750;transition:transform .18s cubic-bezier(.16,1,.3,1),border-color .18s,background .18s,color .18s}
.btn-action:hover:not(:disabled){transform:translateY(-1px);border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark)}
.btn-action:disabled{opacity:.45;cursor:not-allowed}

/* ---------- Presets ---------- */
.presets-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:800}
#preset-badges{display:flex;gap:8px;flex-wrap:wrap}
.preset-badge{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:var(--accent-soft);color:var(--accent-dark);font-size:12px;font-weight:800;text-transform:none;letter-spacing:0;cursor:pointer;transition:transform .18s cubic-bezier(.16,1,.3,1),border-color .18s}
.preset-badge:hover{transform:translateY(-1px);border-color:var(--accent)}

/* ---------- Bulk source/medium rows ---------- */
.bulk-rows{display:flex;flex-direction:column;gap:14px}
.bulk-row{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;padding:14px;border:1px solid var(--line);border-radius:13px;background:var(--paper)}
.bulk-row .input-group{margin-bottom:0}
.row-actions{display:flex;align-items:center;height:48px}
.btn-remove-row{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--muted);font-size:14px;line-height:1;transition:border-color .18s,color .18s,background .18s}
.btn-remove-row:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-soft)}

/* ---------- Results ---------- */
.results-container{display:flex;flex-direction:column;gap:12px}
.empty-state{padding:36px 20px;border:1px dashed var(--line);border-radius:13px;background:var(--paper);color:var(--muted);text-align:center;font-size:14px}
.result-card{padding:16px;border:1px solid var(--line);border-radius:13px;background:var(--paper);transition:border-color .18s,transform .18s cubic-bezier(.16,1,.3,1),box-shadow .18s}
.result-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 10px 24px var(--accent-soft)}
.result-info{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:800;margin-bottom:8px}
.result-url{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:13px;line-height:1.5;color:var(--ink);word-break:break-all;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:10px 12px;margin-bottom:12px}
.result-actions{display:flex;align-items:center;gap:14px}
.btn-copy-url{min-height:44px;padding:0 16px;border:1px solid var(--accent);border-radius:10px;background:var(--accent);color:oklch(99% .01 264);font-size:13px;font-weight:800;transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s}
.btn-copy-url:hover{transform:translateY(-1px);background:var(--accent-dark)}
.btn-copy-url.is-copied{background:var(--success);border-color:var(--success)}
.btn-copy-url.is-copied:hover{background:var(--success)}

/* ---------- Generate + reset actions ---------- */
.generate-actions{display:flex;gap:12px;align-items:stretch}
.generate-actions .btn-primary{flex:1}
.generate-actions #btn-reset{min-height:52px;flex:none}
.qr-code-canvas{flex:none;line-height:0;padding:6px;background:var(--surface);border:1px solid var(--line);border-radius:10px}
.qr-code-canvas img,.qr-code-canvas canvas{display:block;border-radius:4px}

/* ---------- SEO / educational content ---------- */
.seo-content{max-width:840px;margin:80px auto 0}
.section-kicker{display:block;text-transform:uppercase;letter-spacing:.11em;font-size:11px;font-weight:850;color:var(--accent-dark);margin-bottom:10px}
.seo-content h2{font-size:clamp(26px,3.6vw,40px);line-height:1.06;letter-spacing:-.05em;margin:44px 0 16px;text-wrap:balance}
.seo-content h2:first-of-type{margin-top:0}
.seo-content h3{font-size:20px;letter-spacing:-.03em;margin:0 0 10px}
.seo-content p{color:var(--muted);line-height:1.75;margin-bottom:14px;max-width:72ch}
.seo-content strong{color:var(--ink)}
.seo-content code{background:var(--accent-soft);color:var(--accent-dark);padding:2px 6px;border-radius:6px;font-size:.9em;word-break:break-word}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:14px}
.table-wrap table,.seo-content table{width:100%;border-collapse:collapse;font-size:14px}
.table-wrap th,.table-wrap td,.seo-content th,.seo-content td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.table-wrap tr:last-child td{border-bottom:none}
.table-wrap th,.seo-content th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);background:var(--paper)}
.table-wrap tr:hover td{background:var(--paper)}

/* ---------- Steps ---------- */
.steps-list{max-width:72ch;margin:0 0 14px;padding-left:22px;color:var(--muted);line-height:1.75}
.steps-list li{margin-bottom:12px}
.steps-list strong{color:var(--ink)}

/* ---------- Info grid ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:24px 0}
.info-card{padding:22px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:var(--panel-shadow)}
.info-card h3{color:var(--ink);margin-bottom:10px;font-size:17px;letter-spacing:-.02em}
.info-card p{margin-bottom:0;font-size:14.5px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list{margin-top:12px}
.faq-item{border-top:1px solid var(--line);padding:0}
.faq-item summary{cursor:pointer;font-weight:800;letter-spacing:-.01em;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--accent-dark);font-size:22px;line-height:1;flex:none}
.faq-item[open] summary::after{content:'−'}
.faq-item p{color:var(--muted);line-height:1.7;font-size:15px;margin:0 0 18px;max-width:72ch}

/* ---------- pSEO subpage helpers (shared vocabulary) ---------- */
.dt-container{max-width:1000px;margin-left:auto;margin-right:auto}
.dt-mb-16{margin-bottom:16px}
.faq-section{max-width:840px;margin:40px auto 0}
.faq-heading{font-size:clamp(26px,3.6vw,40px);line-height:1.06;letter-spacing:-.05em;margin:0 0 12px;text-wrap:balance}
.cta-style-box{background:var(--accent-soft);border:1px solid oklch(84% .06 250);border-radius:16px;padding:32px}
.cta-style-box h3{color:var(--ink);margin-bottom:10px}
.cta-style-box p,.cta-style-box li{color:var(--muted);line-height:1.7}
.cta-style-box strong{color:var(--ink)}
.dt-resource-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:16px}
.dt-resource-card{display:block;padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-decoration:none;transition:transform .18s cubic-bezier(.16,1,.3,1),border-color .18s,box-shadow .18s}
.dt-resource-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--panel-shadow)}
.dt-resource-card .title{font-weight:800;font-size:15px;letter-spacing:-.01em;color:var(--ink);margin-bottom:4px}
.dt-resource-card .desc{font-size:13px;color:var(--muted)}

/* ---------- Related tools ---------- */
.related-section{max-width:1200px;margin:72px auto 0;padding:0 clamp(16px,5vw,72px)}
.related-heading{font-size:14px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.related-card{display:flex;align-items:center;padding:16px 18px;border:1px solid var(--line);border-radius:13px;background:var(--surface);text-decoration:none;font-weight:700;font-size:14px;transition:transform .18s cubic-bezier(.16,1,.3,1),border-color .18s,color .18s}
.related-card:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent-dark)}

/* ---------- Footer ---------- */
.site-footer{margin-top:72px;padding:28px clamp(16px,5vw,72px);border-top:1px solid var(--line);color:var(--muted);font-size:13px;text-align:center}
.site-footer a{color:var(--accent-dark);text-decoration:none}
.site-footer p{margin:0}

/* ---------- Focus ---------- */
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .app-layout{grid-template-columns:1fr}
  .results-panel{position:static}
  .seo-content,.faq-section{margin-top:56px}
}
@media(max-width:640px){
  .site-header{min-height:62px;gap:16px}
  .site-header nav{display:none}
  .hero{padding:44px 0 28px}
  .page-title{font-size:clamp(34px,10vw,56px)}
  .page-subtitle{font-size:16px}
  .panel-section{padding:18px;border-radius:15px}
  .input-grid{grid-template-columns:1fr}
  .bulk-row{grid-template-columns:1fr 1fr;gap:12px}
  .bulk-row .row-actions{grid-column:1 / -1;justify-content:flex-end;height:auto}
  .input-group input{font-size:16px}
  .result-actions{flex-wrap:wrap}
}

/* ---------- Reduced motion (keep last) ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;transition-delay:0!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}