/* ============================================================
   PDF Compressor — premium light UI (accent hue 25, warm red-orange)
   Shared across /tools/pdf-compressor/ and all pSEO subpages.
   Class vocabulary is preserved; restyled, not renamed.
   ============================================================ */
:root{
  --ink:oklch(24% .02 30);
  --muted:oklch(52% .03 30);
  --paper:oklch(97% .008 30);
  --surface:oklch(100% .002 30);
  --line:oklch(90% .015 30);
  --accent:oklch(58% .19 28);
  --accent-dark:oklch(48% .17 28);
  --accent-soft:oklch(94% .05 40);
  --success:oklch(58% .15 155);
  --danger:oklch(58% .19 28);
  /* aliases used by inline styles on pSEO subpages */
  --heading:var(--ink);
  --primary:var(--accent-dark);
  --border:var(--line);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  font-synthesis:none;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

/* ── Header ── */
.site-header{
  display:flex;align-items:center;
  min-height:68px;
  padding:0 clamp(16px,5vw,48px);
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:200;
}
.site-header .dt-container{max-width:1200px;margin:0 auto}
.logo{font-size:19px;font-weight:850;letter-spacing:-.03em;color:var(--ink)}
.logo span{color:var(--accent)}
.site-header nav{display:flex;gap:22px;margin-left:auto}
.site-header nav a{color:var(--muted);font-size:14px;font-weight:600;transition:color .2s}
.site-header nav a:hover{color:var(--accent-dark);text-decoration:none}
/* ── Layout ── */
.dt-container{max-width:1200px;margin-inline:auto;width:100%}
.dt-mb-16{margin-bottom:16px}
.page-wrapper{max-width:900px;margin:0 auto;padding:clamp(32px,6vw,56px) clamp(16px,5vw,24px) 40px}

/* ── Hero ── */
.hero{max-width:760px;margin-bottom:36px}
.hero-badge{
  display:inline-block;text-transform:uppercase;letter-spacing:.11em;
  font-size:11px;font-weight:850;color:var(--accent-dark);
  background:var(--accent-soft);padding:6px 12px;border-radius:999px;margin-bottom:18px;
}
.page-title{
  font-size:clamp(38px,7vw,66px);line-height:1.02;letter-spacing:-.045em;
  font-weight:850;color:var(--ink);text-wrap:balance;margin-bottom:16px;
}
.page-sub{
  font-size:clamp(16px,2.2vw,19px);line-height:1.6;color:var(--muted);
  max-width:660px;text-wrap:pretty;
}
.page-sub strong{color:var(--ink);font-weight:700}

/* ── Trust badges ── */
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:650;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}

/* ── Drop zone ── */
.drop-zone{
  position:relative;margin-top:32px;
  display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:44px 24px;
  background:var(--surface);
  border:2px dashed oklch(80% .04 40);
  border-radius:18px;
  transition:border-color .2s,background .2s,transform .2s cubic-bezier(.16,1,.3,1);
}
.drop-zone:hover{border-color:var(--accent);background:oklch(98% .01 40)}
.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}
.drop-icon{font-size:44px;line-height:1;margin-bottom:10px}
.drop-title{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.drop-sub{font-size:14px;color:var(--muted);margin-top:4px}
.drop-formats{font-size:12.5px;color:var(--muted);margin-top:14px}
.drop-btn{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;min-height:46px;padding:0 22px;
  background:var(--accent);color:oklch(99% .01 40);
  border:1px solid var(--accent);border-radius:11px;
  font-size:15px;font-weight:750;
  transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s;
}
.drop-btn:hover{transform:translateY(-1px);background:var(--accent-dark)}
#file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
/* ── Mode pills ── */
.mode-pills{display:flex;gap:8px;margin-top:20px}
.mode-pill{
  flex:1;min-height:46px;padding:0 16px;
  background:var(--surface);color:var(--muted);
  border:1px solid var(--line);border-radius:11px;
  font-size:14.5px;font-weight:700;
  transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s,color .18s,border-color .18s;
}
.mode-pill:hover{transform:translateY(-1px);border-color:var(--accent);color:var(--accent-dark)}
.mode-pill.active{background:var(--ink);border-color:var(--ink);color:var(--surface)}

/* ── Controls card ── */
.controls-card{
  margin-top:16px;padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 1px 2px oklch(24% .04 30 / .04),0 8px 24px oklch(24% .04 30 / .05);
}
.controls-title{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);margin-bottom:18px}
.controls-grid{display:grid;gap:18px}
.ctrl-group{display:block}
.ctrl-label{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:12px;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted);font-weight:800;margin-bottom:12px;
}
.ctrl-val{color:var(--accent-dark);letter-spacing:0;font-variant-numeric:tabular-nums;font-size:14px}
.range-input,input[type=range]{width:100%;accent-color:var(--accent);height:44px;cursor:pointer}
.ctrl-hint{font-size:12.5px;color:var(--muted);margin-top:8px}
.target-kb-row{display:flex;align-items:center;gap:10px}
.target-kb-input{
  width:140px;min-height:46px;padding:0 14px;font-size:16px;font-weight:700;
  background:var(--paper);color:var(--ink);
  border:1px solid var(--line);border-radius:11px;font-variant-numeric:tabular-nums;
}
.target-kb-input:focus{outline:none;border-color:var(--accent)}
.target-kb-label{font-size:14px;color:var(--muted);font-weight:600}

/* ── Action bar ── */
.action-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.action-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:750;border:1px solid transparent;
  transition:transform .18s cubic-bezier(.16,1,.3,1),background .18s,opacity .18s;
}
.action-btn:hover:not(:disabled){transform:translateY(-1px)}
.action-btn:disabled{opacity:.45;cursor:not-allowed}
.btn-primary{background:var(--accent);color:oklch(99% .01 40);border-color:var(--accent)}
.btn-primary:hover:not(:disabled){background:var(--accent-dark)}
.btn-secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-secondary:hover:not(:disabled){border-color:var(--accent);color:var(--accent-dark)}
.btn-success{background:var(--success);color:oklch(99% .01 155);border-color:var(--success)}
.dl-all-btn{margin-left:auto}
.spin{display:inline-block;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* ── File queue ── */
.file-queue{margin-top:24px}
.queue-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.queue-title{font-size:13px;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:var(--muted)}
.file-list{display:flex;flex-direction:column;gap:10px}
.file-row{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;
  background:var(--surface);
  border:1px solid var(--line);border-radius:14px;
  transition:opacity .2s,transform .2s,border-color .2s;
}
.file-row.done{border-color:oklch(80% .1 155)}
.file-row.error{border-color:oklch(78% .12 28)}
.file-row.best-effort{border-color:oklch(82% .12 75)}
.animate-in{animation:rowIn .32s cubic-bezier(.16,1,.3,1)}
@keyframes rowIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.file-thumb{
  flex:none;width:44px;height:44px;border-radius:10px;
  background:var(--accent-soft);color:var(--accent-dark);
}
.file-info{flex:1;min-width:0}
.file-name{font-size:14.5px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-sizes{font-size:13px;color:var(--muted);margin-top:3px;font-variant-numeric:tabular-nums}
.file-sizes .saving{color:var(--success);font-weight:700}
.file-sizes .warning-msg{color:oklch(52% .12 75);font-weight:600}
.file-sizes .error-msg{color:var(--danger);font-weight:600}
.file-progress{height:5px;border-radius:999px;background:var(--line);overflow:hidden;margin-top:8px}
.file-progress-fill{height:100%;width:0;background:var(--accent);border-radius:inherit;transition:width .25s}
.file-status{flex:none;font-size:12px;font-weight:700;padding:5px 11px;border-radius:999px}
.status-pending{background:var(--line);color:var(--muted)}
.status-compressing{background:var(--accent-soft);color:var(--accent-dark)}
.status-done{background:oklch(92% .07 155);color:oklch(42% .13 155)}
.status-error{background:oklch(93% .07 28);color:var(--danger)}
.file-remove,.file-dl{
  flex:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:38px;min-width:38px;border-radius:9px;
  border:1px solid var(--line);background:var(--surface);color:var(--muted);
  font-size:12.5px;font-weight:700;transition:transform .18s,border-color .18s,color .18s;
}
.file-dl{padding:0 12px}
.file-remove:hover{border-color:var(--danger);color:var(--danger);transform:translateY(-1px)}
.file-dl:hover:not(:disabled){border-color:var(--accent);color:var(--accent-dark);transform:translateY(-1px)}
.file-dl:disabled{opacity:.4;cursor:not-allowed}
.file-dl.saved{border-color:var(--success);color:var(--success)}
.action-btn.btn-success.saved{background:var(--accent-dark);border-color:var(--accent-dark)}

/* ── Summary bar ── */
.summary-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  margin-top:22px;padding:20px 24px;
  background:var(--ink);color:var(--surface);border-radius:16px;
}
.sum-item{display:flex;flex-direction:column;gap:3px}
.sum-label{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:oklch(78% .02 30);font-weight:700}
.sum-value{font-size:22px;font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.sum-value.green{color:oklch(82% .16 155)}
/* ── SEO / article content ── */
.seo-section{margin-top:64px;padding-top:8px}
.seo-section h2{
  font-size:clamp(24px,3.5vw,34px);line-height:1.12;letter-spacing:-.035em;
  font-weight:800;color:var(--ink);margin:44px 0 14px;text-wrap:balance;
}
.seo-section h2:first-child{margin-top:0}
.seo-section h3{font-size:clamp(19px,2.4vw,22px);font-weight:750;letter-spacing:-.02em;margin:28px 0 10px;color:var(--ink)}
.seo-section p{color:var(--muted);line-height:1.75;margin-bottom:14px;max-width:68ch}
.seo-section p strong{color:var(--ink)}
.seo-section ol,.seo-section ul{margin:0 0 16px;padding-left:24px;color:var(--muted);line-height:1.75}
.seo-section li{margin-bottom:8px}
.seo-section li strong{color:var(--ink)}
code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:var(--accent-soft);color:var(--accent-dark);
  padding:2px 6px;border-radius:6px;
}
.highlight-box{
  background:var(--accent-soft);border:1px solid oklch(88% .06 40);
  border-radius:14px;padding:18px 22px;margin:20px 0;
}
.highlight-box p{margin:0;color:var(--ink)}
.seo-table{width:100%;border-collapse:collapse;margin:16px 0 8px;font-size:14.5px}
.seo-table th,.seo-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.seo-table th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:800}
.seo-table td{color:var(--muted)}
.seo-table td strong{color:var(--ink)}
.seo-table tr:last-child td,.seo-table tbody tr:last-child td{border-bottom:none}

/* ── FAQ ── */
.faq-section{margin-top:56px}
.faq-heading{font-size:clamp(24px,3.5vw,32px);font-weight:800;letter-spacing:-.03em;margin-bottom:8px;color:var(--ink)}
.faq-list{margin-top:8px}
.faq-item{border-top:1px solid var(--line);padding:18px 0}
.faq-item summary{
  cursor:pointer;font-weight:750;font-size:16px;color:var(--ink);list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:30px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--accent-dark);font-size:22px;font-weight:400;line-height:1}
.faq-item[open] summary::after{content:'\2212'}
.faq-item p{margin:12px 0 0;color:var(--muted);line-height:1.7;font-size:15px}
/* .faq-q/.faq-a variant (used on some subpages) */
.faq-q{cursor:pointer;font-weight:750;font-size:16px;color:var(--ink);padding:18px 0;border-top:1px solid var(--line)}
.faq-a{color:var(--muted);line-height:1.7;padding-bottom:14px;display:none}
.faq-a.open{display:block}
.faq-q.open{color:var(--accent-dark)}

/* ── Related tools ── */
.related-section{margin-top:56px}
.related-heading{font-size:clamp(22px,3vw,28px);font-weight:800;letter-spacing:-.03em;margin-bottom:16px;color:var(--ink)}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.related-card{
  display:block;padding:18px 20px;
  background:var(--surface);border:1px solid var(--line);border-radius:13px;
  font-weight:700;color:var(--ink);
  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);text-decoration:none}

/* ── Footer ── */
.site-footer{
  margin-top:24px;padding:32px clamp(16px,5vw,48px);
  border-top:1px solid var(--line);
  color:var(--muted);font-size:13.5px;text-align:center;
}
.site-footer a{color:var(--accent-dark)}
/* ── Responsive ── */
@media(max-width:900px){
  .page-wrapper{padding-top:28px}
  .seo-section{margin-top:48px}
  .summary-bar{gap:16px 20px}
}
@media(max-width:640px){
  .site-header{min-height:60px}
  .site-header nav{display:none}
  .site-header nav.open{display:flex;position:fixed;inset:60px 0 auto 0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--line);padding:16px;gap:14px;z-index:150}
  .mode-pills{flex-direction:column}
  .action-bar{flex-direction:column;align-items:stretch}
  .action-btn{width:100%}
  .dl-all-btn{margin-left:0}
  .drop-zone{padding:36px 18px}
  .file-row{flex-wrap:wrap;gap:10px 12px}
  .file-status{order:3}
  .summary-bar{padding:18px 20px}
  /* 16px inputs prevent iOS zoom */
  .target-kb-input,input[type=number]{font-size:16px}
  .seo-table{font-size:13.5px}
  .seo-table th,.seo-table td{padding:10px 8px}
}

/* ── Motion / a11y ── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}
}

/* ── Scrollbar (light) ── */
*{scrollbar-width:thin;scrollbar-color:oklch(80% .04 40) transparent}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:oklch(82% .03 40);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}