/* ==========================================================================
   pdflove.it — interface styles
   ========================================================================== */
:root{
  --brand:#5B4BFF; --brand-dark:#4436E0; --brand-soft:#EEEBFF;
  --mint:#00C2A8; --mint-dark:#019E8A; --mint-soft:#E6FAF6;
  --amber:#FFB020; --amber-dark:#E09400;
  --ink:#171A2E; --muted:#62677F; --line:#E4E6F0;
  --bg:#FFFFFF; --section:#F7F8FD; --danger:#D62F58;
  --radius:14px; --radius-lg:24px;
  --shadow:0 1px 2px rgba(23,26,46,.05), 0 8px 24px -12px rgba(23,26,46,.14);
  --shadow-hi:0 2px 4px rgba(23,26,46,.06), 0 18px 40px -16px rgba(91,75,255,.30);
  --font-head:'Space Grotesk','Trebuchet MS',system-ui,sans-serif;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);
  font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------------------------------------------------------------- header */
.topbar{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);
  font-weight:700;font-size:20px;letter-spacing:-.4px}
.brand .mark{width:32px;height:32px;flex:none}
.brand .word{display:inline-flex;align-items:baseline;letter-spacing:-.7px}
.brand .word em{font-style:normal;background:linear-gradient(96deg,var(--brand),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.brand .word i{font-style:normal;font-size:12.5px;font-weight:600;color:var(--muted);margin-left:1px}
.mainnav{display:flex;align-items:center;gap:4px;margin-left:6px}
.mainnav > a,.dd > button{display:flex;align-items:center;gap:6px;padding:9px 12px;border-radius:9px;
  font-size:13px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:#2C2F45;
  transition:background .15s,color .15s}
.mainnav > a:hover,.dd > button:hover{background:var(--brand-soft);color:var(--brand-dark)}
.dd{position:relative}
.dd .caret{width:10px;height:10px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.dd.open .caret{transform:rotate(-135deg) translateY(-2px)}
.dd-panel{position:absolute;top:calc(100% + 10px);left:0;min-width:250px;background:#fff;
  border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s}
.dd.open .dd-panel{opacity:1;visibility:visible;transform:none}
.dd-panel.wide{width:min(780px,84vw);left:50%;margin-left:calc(-1 * min(390px,42vw));
  display:grid;grid-template-columns:repeat(3,1fr);gap:4px 14px;padding:16px 18px}
.dd-panel a{display:block;padding:8px 10px;border-radius:9px;font-size:14px;font-weight:500;color:#33374F}
.dd-panel a:hover{background:var(--section);color:var(--brand-dark)}
.dd-col-title{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);padding:8px 10px 4px}
.actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.free-pill{display:inline-flex;align-items:center;gap:7px;background:var(--mint-soft);color:#017A6B;
  border-radius:999px;padding:7px 13px;font-size:12.5px;font-weight:700;letter-spacing:.02em}
.free-pill svg{width:14px;height:14px;fill:var(--mint-dark)}
.grid-btn{width:38px;height:38px;border-radius:10px;display:grid;place-items:center}
.grid-btn:hover{background:var(--section)}
.grid-btn svg{width:19px;height:19px;fill:#2C2F45}

/* ---------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:14.5px;
  font-weight:600;padding:12px 20px;border-radius:11px;transition:transform .12s,box-shadow .18s,background .18s,border-color .18s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px -8px rgba(91,75,255,.85)}
.btn-primary:hover{background:var(--brand-dark)}
.btn-primary:disabled{background:#B9B6F6;box-shadow:none;cursor:not-allowed}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-ghost{font-size:14px;font-weight:600;padding:10px 14px;border-radius:10px;color:var(--muted)}
.btn-ghost:hover{background:var(--section);color:var(--ink)}
.btn-lg{font-size:16px;padding:15px 26px;border-radius:13px}

/* ---------------------------------------------------------------- hero */
.hero{position:relative;overflow:hidden;padding:74px 0 34px;text-align:center;
  background:radial-gradient(620px 430px at 4% -8%,rgba(0,194,168,.30),rgba(0,194,168,0) 72%),
             radial-gradient(660px 460px at 98% -12%,rgba(91,75,255,.28),rgba(91,75,255,0) 72%)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 14px 6px 8px;font-size:12.5px;font-weight:600;color:var(--muted);box-shadow:var(--shadow)}
.eyebrow b{background:var(--mint-soft);color:#017A6B;border-radius:999px;padding:3px 9px;font-size:11.5px}
.hero h1{font-family:var(--font-head);font-weight:700;letter-spacing:-1.4px;
  font-size:clamp(32px,4.4vw,52px);line-height:1.12;margin:22px auto 16px;max-width:20ch}
.hero h1 em{font-style:normal;background:linear-gradient(96deg,var(--brand),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,1.5vw,18.5px);color:var(--muted);max-width:68ch;margin:0 auto}
.trustline{margin-top:20px;font-size:13px;color:var(--muted)}
.trustline span{display:inline-flex;align-items:center;gap:6px;margin:0 10px}
.trustline svg{width:14px;height:14px;fill:var(--mint)}

/* ---------------------------------------------------------------- filters */
.filters{padding:26px 0 4px}
.pillrow{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.pill{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 20px;
  font-size:14px;font-weight:600;color:#3C4058;transition:.16s}
.pill:hover{border-color:var(--brand);color:var(--brand-dark)}
.pill[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------------------------------------------------------------- grid */
.tools{padding:28px 0 8px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px 20px;
  display:block;position:relative;transition:transform .16s,box-shadow .2s,border-color .16s}
.card:hover{transform:translateY(-3px);border-color:#CFD3E6;box-shadow:var(--shadow-hi)}
.card .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:14px}
.card .ic svg{width:24px;height:24px}
.card h3{font-family:var(--font-head);font-size:17.5px;font-weight:600;margin:0 0 7px;letter-spacing:-.2px}
.card p{margin:0;font-size:13.6px;color:var(--muted);line-height:1.5}
.card.is-hidden{display:none}
.c-organize .ic{background:#EEEBFF}.c-organize .ic svg{fill:#5B4BFF}
.c-optimize .ic{background:#E6FAF6}.c-optimize .ic svg{fill:#00A38C}
.c-convert  .ic{background:#FFF1E3}.c-convert  .ic svg{fill:#E07B00}
.c-edit     .ic{background:#EAF1FF}.c-edit     .ic svg{fill:#2F6BFF}
.c-security .ic{background:#FDEBEF}.c-security .ic svg{fill:#D62F58}

/* ---------------------------------------------------------------- strips */
.strip{margin:44px 0 0;background:var(--ink);color:#fff;border-radius:var(--radius-lg);
  padding:34px 38px;display:flex;align-items:center;gap:30px;flex-wrap:wrap;
  background-image:radial-gradient(600px 260px at 92% -30%,rgba(0,194,168,.30),transparent)}
.strip h3{font-family:var(--font-head);font-size:22px;margin:0 0 6px}
.strip p{margin:0;color:#B9BDD4;font-size:14.5px;max-width:64ch}
.strip .btn{margin-left:auto;flex:none}
.band{padding:64px 0 8px}
.band-title{font-family:var(--font-head);font-size:clamp(24px,2.6vw,32px);letter-spacing:-.6px;
  text-align:center;margin:0 0 8px}
.band-sub{text-align:center;color:var(--muted);margin:0 auto 34px;max-width:62ch}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.trio article{background:var(--section);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px}
.trio .pic{height:110px;border-radius:16px;margin-bottom:18px;display:grid;place-items:center;
  background:#fff;border:1px solid var(--line)}
.trio .pic svg{width:52px;height:52px}
.trio h3{font-family:var(--font-head);font-size:19px;margin:0 0 8px}
.trio p{margin:0;color:var(--muted);font-size:14.3px}
.note{margin:56px 0;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 36px;
  background:var(--section)}
.note h2{font-family:var(--font-head);font-size:22px;margin:0 0 10px}
.note p{margin:0 0 8px;color:var(--muted);font-size:14.6px}
.note code{background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px 7px;font-size:13px}

/* ---------------------------------------------------------------- footer */
footer{background:#0F1122;color:#A9AEC7;padding:56px 0 30px;font-size:14px;margin-top:64px}
.fgrid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:32px}
footer .brand{color:#fff;margin-bottom:14px}
footer .brand .word i{color:#8A90B0}
footer h4{color:#fff;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px;font-weight:700}
footer li{margin-bottom:9px}
footer a:hover{color:#fff}
footer .note-txt{color:#7A809B;font-size:12.5px;margin-top:14px;max-width:36ch}
.fbase{margin-top:42px;padding-top:22px;border-top:1px solid #242847;display:flex;align-items:center;
  gap:16px;flex-wrap:wrap;font-size:12.8px;color:#7A809B}
.fbase select{background:#1A1D38;color:#E6E8F5;border:1px solid #2C3055;border-radius:8px;padding:8px 10px;font-size:12.8px}
.fbase .sp{margin-left:auto}

/* ================================================================ WORKBENCH */
.wb{padding:34px 0 80px}
.wb-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:26px}
.wb-head .ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;flex:none}
.wb-head .ic svg{width:28px;height:28px}
.wb-head h1{font-family:var(--font-head);font-size:clamp(24px,3vw,34px);letter-spacing:-.7px;margin:0 0 6px}
.wb-head p{margin:0;color:var(--muted);font-size:15px;max-width:70ch}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a:hover{color:var(--brand-dark);text-decoration:underline}

.drop{border:2px dashed #C9CEE2;border-radius:var(--radius-lg);background:var(--section);
  padding:52px 28px;text-align:center;transition:.18s;cursor:pointer}
.drop:hover,.drop.over{border-color:var(--brand);background:var(--brand-soft)}
.drop .big{width:56px;height:56px;margin:0 auto 14px;fill:var(--brand)}
.drop h2{font-family:var(--font-head);font-size:20px;margin:0 0 6px}
.drop p{margin:0;color:var(--muted);font-size:14px}
.filelist{margin-top:18px;display:grid;gap:10px}
.file{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 14px}
.file .fi{width:34px;height:34px;border-radius:9px;background:var(--brand-soft);display:grid;place-items:center;flex:none}
.file .fi svg{width:18px;height:18px;fill:var(--brand)}
.file .meta{min-width:0;flex:1}
.file .nm{font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file .sz{font-size:12.5px;color:var(--muted)}
.file .ctl{display:flex;gap:6px;flex:none}
.iconbtn{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;color:var(--muted)}
.iconbtn:hover{background:var(--section);color:var(--ink)}
.iconbtn svg{width:16px;height:16px;fill:currentColor}
.panel{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px}
.panel h2{font-family:var(--font-head);font-size:18px;margin:0 0 18px}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13px;font-weight:600;color:#3C4058}
.field .hint{font-size:12.3px;color:var(--muted);line-height:1.45}
.field input[type=text],.field input[type=password],.field input[type=number],.field select,.field textarea{
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;font-size:14px;background:#fff;width:100%}
.field textarea{min-height:96px;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}
.field input[type=color]{width:56px;height:38px;padding:2px;border:1px solid var(--line);border-radius:9px;background:#fff}
.check{display:flex;align-items:center;gap:10px;font-size:14px}
.check input{width:17px;height:17px;accent-color:var(--brand)}
.wide{grid-column:1/-1}
.runbar{margin-top:28px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.runbar .status{font-size:13.6px;color:var(--muted)}
.alert{margin-top:20px;border-radius:12px;padding:14px 18px;font-size:14.2px;display:none}
.alert.show{display:block}
.alert.err{background:#FDECEF;color:#8C2039;border:1px solid #F7C6D1}
.alert.ok{background:var(--mint-soft);color:#026B5B;border:1px solid #B6EADF}
.result{margin-top:22px;border:1px solid #B6EADF;background:var(--mint-soft);border-radius:var(--radius-lg);
  padding:26px;display:none}
.result.show{display:block}
.result h2{font-family:var(--font-head);font-size:19px;margin:0 0 6px;color:#02605A}
.result p{margin:0 0 18px;color:#2E6B62;font-size:14px}
.sigpad{grid-column:1/-1}
.sigpad canvas{width:100%;height:170px;border:1px dashed #C9CEE2;border-radius:12px;background:#fff;
  touch-action:none;cursor:crosshair}
.progress{height:8px;border-radius:99px;background:var(--line);overflow:hidden;width:220px;display:none}
.progress.show{display:block}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--mint));
  transition:width .18s}
.spinner{width:17px;height:17px;border:2.5px solid rgba(255,255,255,.35);border-top-color:#fff;
  border-radius:50%;animation:spin .7s linear infinite;display:none}
.btn.loading .spinner{display:block}
.btn.loading .btnlabel{opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}
.skel{background:linear-gradient(90deg,#F1F2F7 25%,#E7E9F1 37%,#F1F2F7 63%);background-size:400% 100%;
  animation:sk 1.3s ease infinite;border-radius:var(--radius);height:150px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------------------------------------------------------------- responsive */
@media (max-width:1080px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .mainnav{display:none}
  .dd-panel.wide{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .trio{grid-template-columns:1fr}
  .strip{padding:26px}
  .strip .btn{margin-left:0}
  .file .nm{max-width:44vw}
}
@media (max-width:560px){
  .grid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .hero{padding-top:50px}
  .wb-head{flex-direction:column;gap:12px}
}

/* ---------------------------------------------------------------- ad slots */
/* The slot is empty until an ad tag is pasted into it: while empty it shows a
   dashed placeholder, and once it contains anything it steps out of the way. */
.adslot:empty{
  margin:26px 0;min-height:96px;border:1px dashed #D8DCEA;border-radius:14px;
  background:#FBFBFE;display:grid;place-items:center;
}
.adslot:empty::before{
  content:"advertisement";color:#9BA1B8;font-size:11.5px;font-weight:600;
  letter-spacing:.09em;text-transform:uppercase;
}
.adslot:not(:empty){margin:26px 0;display:flex;justify-content:center}
@media (max-width:720px){.adslot:empty{min-height:110px}}