/* ==========================================================================
   PDFO — pdfo.smtoolskit.com
   Design tokens: near-black void bg, PDF-red accent, Sora display / Inter body
   ========================================================================== */

:root{
  --void:#0a0a0d;
  --panel:#131318;
  --panel-2:#1a1a21;
  --border:#26262e;
  --red:#e6273f;
  --red-dim:#7a0f1f;
  --red-glow: rgba(230,39,63,.35);
  --text:#f3f3f6;
  --text-muted:#9a9aa6;
  --text-faint:#5c5c66;
  --success:#2fbf71;
  --warn:#e6a627;
  --font-display:'Sora', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
  --radius:14px;
  --radius-sm:8px;
  --max:1320px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--void);
  color:var(--text);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
::selection{background:var(--red);color:#fff;}

/* subtle scanning grid texture on body */
body::before{
  content:'';
  position:fixed;inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 15% 0%, rgba(230,39,63,.10), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(230,39,63,.06), transparent 45%);
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;}

/* ---------------- header ---------------- */
header.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,10,13,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  padding:14px 28px;max-width:var(--max);margin:0 auto;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:700;font-size:20px;
  letter-spacing:.5px;flex-shrink:0;
}
.logo .mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(155deg,var(--red),#8a0f22);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:800;font-size:16px;color:#fff;
  box-shadow:0 0 22px var(--red-glow);
}
.logo .sub{font-size:9px;letter-spacing:3px;color:var(--text-faint);font-family:var(--font-mono);display:block;font-weight:500;}

nav.primary-nav{
  display:flex;gap:4px;background:var(--panel);
  border:1px solid var(--border);border-radius:999px;padding:4px;
}
nav.primary-nav a{
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-muted);transition:.2s;
}
nav.primary-nav a.active{background:var(--red);color:#fff;}
nav.primary-nav a:not(.active):hover{color:var(--text);background:var(--panel-2);}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.btn-catalog{
  display:flex;align-items:center;gap:8px;
  background:var(--red);color:#fff;border:none;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:14px;
  box-shadow:0 6px 20px var(--red-glow);white-space:nowrap;
}
.btn-catalog .dot{width:6px;height:6px;border-radius:50%;background:#fff;box-shadow:0 0 8px #fff;}
.btn-catalog:hover{filter:brightness(1.08);}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;padding:8px;color:var(--text);}

/* ---------------- hero ---------------- */
.hero{
  position:relative;z-index:1;
  max-width:var(--max);margin:22px auto 0;padding:0 28px;
}
.hero-panel{
  position:relative;overflow:hidden;
  border:1px solid var(--border);border-radius:22px;
  background:
    linear-gradient(120deg, rgba(10,10,13,.94) 30%, rgba(10,10,13,.55) 75%),
    linear-gradient(160deg,#161018,#0a0a0d 60%);
  min-height:520px;display:flex;align-items:center;
  padding:56px;
}
.hero-copy{max-width:600px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--red-dim);color:var(--red);
  font-family:var(--font-mono);font-size:12px;letter-spacing:2px;
  padding:6px 14px;border-radius:999px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  font-family:var(--font-display);font-size:56px;line-height:1.02;
  margin:0 0 18px;font-weight:800;letter-spacing:-1px;
}
.hero h1 span{color:var(--red);}
.hero p{color:var(--text-muted);font-size:16.5px;line-height:1.65;max-width:520px;margin:0 0 30px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{
  background:var(--red);color:#fff;border:none;padding:15px 30px;
  border-radius:12px;font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:10px;
  box-shadow:0 10px 30px var(--red-glow);
}
.btn-primary:hover{filter:brightness(1.08);}
.btn-ghost{
  background:transparent;color:var(--text);border:1px solid var(--border);
  padding:15px 26px;border-radius:12px;font-weight:600;font-size:15px;
}
.btn-ghost:hover{border-color:var(--text-faint);}

/* animated document-scan visual, signature element */
.doc-scan{
  position:absolute;right:60px;top:50%;transform:translateY(-50%);
  width:340px;height:400px;
}
.doc-scan .page{
  position:absolute;left:50%;top:50%;
  width:230px;height:300px;border-radius:10px;
  background:linear-gradient(160deg,#1c1c24,#101014);
  border:1px solid #2c2c36;
  box-shadow:0 30px 60px rgba(0,0,0,.55);
}
.doc-scan .page span{
  display:block;height:8px;border-radius:3px;background:#2a2a34;margin:22px 24px;
}
.doc-scan .page span:nth-child(2){width:60%;}
.doc-scan .p1{transform:translate(-70%,-46%) rotate(-9deg);}
.doc-scan .p2{transform:translate(-58%,-52%) rotate(-2deg);z-index:2;}
.doc-scan .p3{transform:translate(-46%,-58%) rotate(6deg);z-index:3;background:linear-gradient(160deg,#232329,#141418);}
.doc-scan .laser{
  position:absolute;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,transparent,var(--red) 20%,#ff8a97 50%,var(--red) 80%,transparent);
  box-shadow:0 0 16px 2px var(--red-glow);
  animation:scanmove 2.8s ease-in-out infinite;
  z-index:4;
}
@keyframes scanmove{
  0%,100%{top:16%;}
  50%{top:82%;}
}
@media (prefers-reduced-motion: reduce){ .doc-scan .laser{animation:none;top:50%;} }

/* ---------------- search ---------------- */
.search-row{max-width:var(--max);margin:34px auto 0;padding:0 28px;}
.search-box{
  display:flex;align-items:center;gap:12px;
  background:var(--panel);border:1px solid var(--border);
  border-radius:999px;padding:15px 24px;max-width:720px;margin:0 auto;
}
.search-box svg{flex-shrink:0;color:var(--text-faint);}
.search-box input{
  flex:1;background:none;border:none;color:var(--text);font-size:15px;outline:none;
}
.search-box input::placeholder{color:var(--text-faint);}

/* ---------------- sections / tool grid ---------------- */
section.tools-section{max-width:var(--max);margin:56px auto 0;padding:0 28px;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px;gap:16px;flex-wrap:wrap;}
.section-head h2{font-family:var(--font-display);font-size:24px;margin:0;display:flex;align-items:center;gap:10px;}
.section-head p{color:var(--text-muted);font-size:14px;margin:4px 0 0;}

.cat-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px;}
.cat-tabs button{
  background:var(--panel);border:1px solid var(--border);color:var(--text-muted);
  padding:9px 17px;border-radius:999px;font-size:13.5px;font-weight:600;transition:.2s;
}
.cat-tabs button.active{background:var(--red);border-color:var(--red);color:#fff;}
.cat-tabs button:not(.active):hover{color:var(--text);}

.tool-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;
}
.tool-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;transition:.2s;position:relative;overflow:hidden;
}
.tool-card:hover{border-color:var(--red-dim);transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.35);}
.tool-card .icon{
  width:42px;height:42px;border-radius:10px;background:var(--panel-2);
  display:flex;align-items:center;justify-content:center;color:var(--red);margin-bottom:16px;
}
.tool-card h3{font-family:var(--font-display);font-size:15.5px;margin:0 0 6px;font-weight:700;}
.tool-card p{font-size:12.5px;color:var(--text-muted);margin:0;line-height:1.5;}
.badge{
  position:absolute;top:16px;right:16px;font-size:9.5px;font-weight:700;letter-spacing:.5px;
  padding:3px 8px;border-radius:999px;font-family:var(--font-mono);
}
.badge.new{background:rgba(47,191,113,.15);color:var(--success);border:1px solid rgba(47,191,113,.3);}
.badge.soon{background:rgba(230,166,39,.15);color:var(--warn);border:1px solid rgba(230,166,39,.3);}
.badge.hot{background:rgba(230,39,63,.15);color:var(--red);border:1px solid rgba(230,39,63,.3);}

/* recently used strip */
.recent-strip{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;}
.recent-chip{
  flex-shrink:0;display:flex;align-items:center;gap:10px;background:var(--panel);
  border:1px solid var(--border);border-radius:12px;padding:10px 16px;font-size:13px;font-weight:600;color:var(--text-muted);
}
.recent-chip .icon{width:26px;height:26px;border-radius:6px;background:var(--panel-2);display:flex;align-items:center;justify-content:center;color:var(--red);}

/* ---------------- ad slots ---------------- */
.ad-slot{
  display:flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px dashed var(--border);border-radius:12px;
  color:var(--text-faint);font-size:11px;font-family:var(--font-mono);letter-spacing:1px;
  overflow:hidden;margin:36px auto;max-width:var(--max);
}
.ad-slot.leaderboard{min-height:60px;max-width:468px;}
.ad-slot.skyscraper{min-height:300px;max-width:160px;}
.ad-slot.native{min-height:90px;max-width:var(--max);}
.ad-slot-wrap{display:flex;justify-content:center;padding:0 28px;}
.ad-slot-wrap.side{justify-content:flex-end;}

/* ---------------- workspace (tool modal) ---------------- */
.tool-overlay{
  position:fixed;inset:0;background:rgba(6,6,8,.75);backdrop-filter:blur(6px);
  z-index:200;display:none;align-items:flex-start;justify-content:center;
  padding:40px 20px;overflow-y:auto;
}
.tool-overlay.open{display:flex;}
.tool-modal{
  background:var(--panel);border:1px solid var(--border);border-radius:20px;
  width:100%;max-width:820px;padding:0;overflow:hidden;
  animation:pop .22s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.98);}to{opacity:1;transform:none;}}
.tool-modal-head{
  display:flex;align-items:center;gap:14px;padding:24px 26px;border-bottom:1px solid var(--border);
}
.tool-modal-head .icon{width:44px;height:44px;border-radius:10px;background:var(--red);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;}
.tool-modal-head h3{font-family:var(--font-display);margin:0;font-size:19px;}
.tool-modal-head p{margin:2px 0 0;font-size:12.5px;color:var(--text-muted);}
.tool-modal-close{margin-left:auto;background:var(--panel-2);border:1px solid var(--border);width:34px;height:34px;border-radius:9px;color:var(--text-muted);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.tool-modal-close:hover{color:var(--text);}
.tool-modal-body{padding:26px;max-height:70vh;overflow-y:auto;}

.dropzone{
  border:2px dashed var(--border);border-radius:14px;padding:34px 20px;text-align:center;
  color:var(--text-muted);font-size:13.5px;transition:.2s;cursor:pointer;background:var(--panel-2);
}
.dropzone.drag{border-color:var(--red);background:rgba(230,39,63,.06);}
.dropzone svg{margin:0 auto 12px;color:var(--red);}
.dropzone b{color:var(--text);}
.dropzone input{display:none;}

.file-list{display:flex;flex-direction:column;gap:8px;margin-top:16px;}
.file-row{
  display:flex;align-items:center;gap:10px;background:var(--panel-2);border:1px solid var(--border);
  border-radius:10px;padding:10px 14px;font-size:13px;
}
.file-row .fname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.file-row .fsize{color:var(--text-faint);font-family:var(--font-mono);font-size:11px;}
.file-row button.remove{background:none;border:none;color:var(--text-faint);font-size:16px;line-height:1;padding:4px;}
.file-row button.remove:hover{color:var(--red);}
.file-row .drag-handle{cursor:grab;color:var(--text-faint);}

.field-row{display:flex;flex-direction:column;gap:6px;margin-top:16px;}
.field-row label{font-size:12.5px;font-weight:600;color:var(--text-muted);}
.field-row input[type=text],.field-row input[type=password],.field-row input[type=number],.field-row select,.field-row textarea{
  background:var(--panel-2);border:1px solid var(--border);border-radius:9px;padding:11px 13px;
  color:var(--text);font-size:13.5px;font-family:inherit;
}
.field-row textarea{resize:vertical;min-height:90px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.range-row{display:flex;align-items:center;gap:12px;}
.range-row input[type=range]{flex:1;accent-color:var(--red);}

.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px;margin-top:14px;}
.thumb{
  position:relative;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--panel-2);
  cursor:grab;aspect-ratio:3/4;display:flex;align-items:center;justify-content:center;
}
.thumb.selected{outline:2px solid var(--red);}
.thumb img,.thumb canvas{width:100%;height:100%;object-fit:cover;}
.thumb .pnum{position:absolute;bottom:3px;right:5px;font-size:9px;background:rgba(0,0,0,.6);padding:1px 5px;border-radius:5px;font-family:var(--font-mono);}
.thumb .del{position:absolute;top:3px;right:3px;background:rgba(0,0,0,.65);border:none;color:#fff;border-radius:5px;width:18px;height:18px;font-size:11px;line-height:1;}

.tool-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;}
.btn-run{
  background:var(--red);color:#fff;border:none;padding:13px 24px;border-radius:10px;font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-run:disabled{opacity:.4;cursor:not-allowed;}
.btn-secondary{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:13px 22px;border-radius:10px;font-weight:600;font-size:14px;}

.progress-wrap{margin-top:18px;display:none;}
.progress-wrap.show{display:block;}
.progress-track{height:8px;border-radius:99px;background:var(--panel-2);overflow:hidden;border:1px solid var(--border);}
.progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--red-dim),var(--red));transition:width .2s;}
.progress-label{font-size:12px;color:var(--text-muted);margin-top:8px;font-family:var(--font-mono);}

.result-box{
  margin-top:18px;padding:18px;border-radius:12px;background:rgba(47,191,113,.08);
  border:1px solid rgba(47,191,113,.25);display:none;gap:14px;align-items:center;flex-wrap:wrap;
}
.result-box.show{display:flex;}
.result-box svg{color:var(--success);flex-shrink:0;}
.result-box .info{flex:1;min-width:160px;}
.result-box .info b{display:block;font-size:13.5px;}
.result-box .info span{font-size:12px;color:var(--text-muted);}
.result-box a.download{background:var(--success);color:#06170c;padding:10px 18px;border-radius:9px;font-weight:700;font-size:13px;}

.error-box{margin-top:14px;padding:12px 16px;border-radius:10px;background:rgba(230,39,63,.1);border:1px solid rgba(230,39,63,.3);color:#ff8a97;font-size:13px;display:none;}
.error-box.show{display:block;}
.hint{font-size:11.5px;color:var(--text-faint);margin-top:10px;line-height:1.5;}

.soon-panel{text-align:center;padding:30px 10px;color:var(--text-muted);font-size:14px;}
.soon-panel svg{margin:0 auto 14px;color:var(--warn);}

/* camscanner */
.camwrap{position:relative;border-radius:14px;overflow:hidden;background:#000;aspect-ratio:4/3;}
.camwrap video, .camwrap canvas.capture-canvas{width:100%;height:100%;object-fit:cover;}
.cam-controls{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap;}
.filter-select{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;}
.filter-select button{background:var(--panel-2);border:1px solid var(--border);color:var(--text-muted);padding:8px 14px;border-radius:8px;font-size:12.5px;font-weight:600;}
.filter-select button.active{background:var(--red);color:#fff;border-color:var(--red);}

/* ---------------- footer ---------------- */
footer{border-top:1px solid var(--border);margin-top:90px;padding:50px 28px 30px;}
.footer-grid{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-grid h4{font-family:var(--font-display);font-size:13px;letter-spacing:1px;color:var(--text-muted);margin:0 0 14px;text-transform:uppercase;}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-grid a{color:var(--text-muted);font-size:13.5px;}
.footer-grid a:hover{color:var(--red);}
.footer-bottom{max-width:var(--max);margin:40px auto 0;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--text-faint);font-size:12px;flex-wrap:wrap;gap:10px;}

/* ---------------- ad-block modal ---------------- */
.adb-overlay{
  position:fixed;inset:0;background:rgba(6,6,8,.82);backdrop-filter:blur(8px);
  z-index:500;display:none;align-items:center;justify-content:center;padding:20px;
}
.adb-overlay.open{display:flex;}
.adb-modal{
  background:var(--panel);border:1px solid var(--red-dim);border-radius:18px;max-width:440px;width:100%;
  padding:32px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.6);
}
.adb-modal .adb-icon{
  width:60px;height:60px;border-radius:16px;background:rgba(230,39,63,.12);color:var(--red);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.adb-modal h3{font-family:var(--font-display);font-size:19px;margin:0 0 10px;}
.adb-modal p{color:var(--text-muted);font-size:13.5px;line-height:1.65;margin:0 0 22px;}
.adb-actions{display:flex;flex-direction:column;gap:10px;}
.adb-actions .btn-primary{width:100%;justify-content:center;}
.adb-actions .btn-ghost{width:100%;justify-content:center;}

/* ---------------- toast ---------------- */
.toast-stack{position:fixed;bottom:24px;right:24px;z-index:400;display:flex;flex-direction:column;gap:10px;}
.toast{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px 18px;font-size:13px;max-width:300px;box-shadow:0 12px 28px rgba(0,0,0,.4);}

/* ---------------- responsive ---------------- */
@media (max-width:980px){
  .hero-panel{padding:40px 30px;min-height:460px;}
  .hero h1{font-size:40px;}
  .doc-scan{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  nav.primary-nav{display:none;}
  .menu-toggle{display:flex;}
  .btn-catalog span{display:none;}
  .btn-catalog{padding:11px;border-radius:10px;}
  .hero h1{font-size:32px;}
  .hero p{font-size:14.5px;}
  .hero-panel{padding:32px 22px;min-height:auto;}
  .two-col{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  section.tools-section{margin-top:40px;}
}
@media (max-width:520px){
  .header-inner{padding:12px 16px;}
  .wrap,.hero,.search-row,section.tools-section{padding-left:16px;padding-right:16px;}
  .tool-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));}
  .footer-grid{grid-template-columns:1fr;}
}

nav.mobile-nav{
  display:none;position:fixed;inset:0;z-index:150;background:var(--void);padding:90px 24px 24px;
}
nav.mobile-nav.open{display:block;}
nav.mobile-nav a{display:block;padding:16px 4px;font-size:18px;font-weight:700;border-bottom:1px solid var(--border);font-family:var(--font-display);}

/* floating skyscraper rail — desktop only, stays in view while scrolling */
.ad-rail{
  position:fixed;right:18px;top:50%;transform:translateY(-50%);
  z-index:120;
}
.ad-rail .ad-slot{margin:0;}
@media (max-width:1280px){ .ad-rail{display:none;} }

/* sticky bottom ad bar — mobile only */
.ad-sticky-bottom{
  position:fixed;left:0;right:0;bottom:0;z-index:130;
  background:var(--panel);border-top:1px solid var(--border);
  display:none;align-items:center;justify-content:center;padding:8px 34px 8px 8px;
}
.ad-sticky-bottom.show{display:flex;}
.ad-sticky-bottom .ad-slot{margin:0;min-height:50px;}
.ad-sticky-close{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  background:var(--panel-2);border:1px solid var(--border);color:var(--text-muted);
  width:22px;height:22px;border-radius:6px;font-size:12px;line-height:1;
}
@media (min-width:761px){ .ad-sticky-bottom{display:none !important;} }