/* Free PDF Toolkit — clean modern tool aesthetic: teal + indigo on white */
:root{
  --teal:#0e7c7b; --teal-dark:#0a5f5e; --teal-soft:#e6f7f6;
  --indigo:#4f46e5; --indigo-dark:#4338ca; --indigo-soft:#eef0ff;
  --ink:#0f172a; --muted:#475569; --faint:#64748b;
  --bg:#ffffff; --panel:#f8fafc; --line:#e2e8f0;
  --ok:#15803d; --ok-soft:#dcfce7; --warn:#b45309; --warn-soft:#fef3c7;
  --err:#b91c1c; --err-soft:#fee2e2; --info:#1d4ed8; --info-soft:#dbeafe;
  --radius:14px; --shadow:0 6px 24px rgba(15,23,42,.08);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;height:auto}
a{color:var(--teal)}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.15rem;color:var(--ink);white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--indigo));display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.8rem;letter-spacing:.5px;flex:none}
.logo b{color:var(--teal)}
.main-nav{display:flex;gap:4px;overflow-x:auto;margin-left:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--muted);font-weight:600;font-size:.9rem;white-space:nowrap}
.main-nav a:hover{background:var(--teal-soft);color:var(--teal-dark)}
.main-nav a.active{background:var(--teal);color:#fff}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,var(--teal) 0%,#0a6e6d 40%,var(--indigo-dark) 100%);color:#fff;text-align:center;padding:64px 20px 56px}
.hero h1{margin:0 0 12px;font-size:2.4rem;line-height:1.15;letter-spacing:-.5px}
.hero .lead{max-width:640px;margin:0 auto 26px;font-size:1.1rem;color:#e6fffd}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px}
.hero-badges span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:6px 14px;font-size:.85rem;font-weight:600}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- buttons ---------- */
.btn{display:inline-block;border:none;cursor:pointer;font-weight:700;font-size:1rem;border-radius:10px;padding:13px 26px;text-decoration:none;transition:transform .08s ease,box-shadow .15s ease}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark)}
.btn-accent{background:var(--indigo);color:#fff}
.btn-accent:hover{background:var(--indigo-dark)}
.btn-light{background:#fff;color:var(--teal-dark)}
.btn-outline{background:#fff;color:var(--teal-dark);border:2px solid var(--teal)}
.btn-outline:hover{background:var(--teal-soft)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-block{width:100%}
.mini-btn{border:1px solid var(--line);background:#fff;border-radius:7px;padding:4px 10px;font-size:.85rem;cursor:pointer;font-weight:600;color:var(--muted)}
.mini-btn:hover:not(:disabled){border-color:var(--teal);color:var(--teal-dark)}
.mini-btn:disabled{opacity:.35;cursor:not-allowed}

/* ---------- sections / cards ---------- */
.section{padding:52px 0}
.section-title{font-size:1.7rem;margin:0 0 8px;letter-spacing:-.3px}
.section-title .accent{color:var(--teal)}
.section-sub{color:var(--muted);margin:0 0 28px;max-width:680px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-icon{width:52px;height:52px;border-radius:13px;background:var(--teal-soft);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:14px}
.card:nth-child(even) .card-icon{background:var(--indigo-soft)}
.card h3{margin:0 0 8px;font-size:1.12rem}
.card p{margin:0 0 16px;color:var(--muted);font-size:.95rem;flex:1}
.card-link{font-weight:700;color:var(--teal);text-decoration:none}
.card-link:hover{text-decoration:underline}

/* ---------- tool panel ---------- */
.tool-wrap{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:8px 0 8px}
.dropzone{border:2px dashed var(--teal);border-radius:12px;background:#fff;padding:38px 20px;text-align:center;cursor:pointer;transition:background .15s ease,border-color .15s ease}
.dropzone:hover,.dropzone.drag{background:var(--teal-soft);border-color:var(--teal-dark)}
.dropzone .dz-icon{font-size:2.4rem;display:block;margin-bottom:8px}
.dropzone p{margin:6px 0;color:var(--muted)}
.dropzone strong{color:var(--ink)}
.file-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.file-list .empty{color:var(--faint);text-align:center;padding:14px;border:1px dashed var(--line);border-radius:10px;background:#fff}
.file-row{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.file-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600;font-size:.93rem}
.row-btns{display:flex;gap:6px;flex:none}
.thumb{width:52px;height:52px;object-fit:cover;border-radius:8px;border:1px solid var(--line);flex:none}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:18px 0}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-weight:700;font-size:.92rem}
.form-group input[type=text],.form-group input[type=number],.form-group input[type=email],.form-group select,.form-group textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;font-size:1rem;font-family:inherit;background:#fff;color:var(--ink)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:2px solid var(--teal);border-color:var(--teal)}
.hint{font-size:.86rem;color:var(--faint);margin:0}
.note{background:var(--indigo-soft);border-left:4px solid var(--indigo);border-radius:0 10px 10px 0;padding:12px 16px;margin:18px 0;font-size:.93rem}
.note strong{color:var(--indigo-dark)}
.tool-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.progress{height:12px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-top:16px}
.progress>div{height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--indigo));border-radius:999px;transition:width .2s ease}
.alert{border-radius:10px;padding:12px 16px;margin:14px 0;font-size:.95rem;font-weight:500}
.alert.ok{background:var(--ok-soft);color:var(--ok);border:1px solid #bbf7d0}
.alert.warn{background:var(--warn-soft);color:var(--warn);border:1px solid #fde68a}
.alert.error{background:var(--err-soft);color:var(--err);border:1px solid #fecaca}
.alert.info{background:var(--info-soft);color:var(--info);border:1px solid #bfdbfe}
.stat-row{display:flex;gap:14px;flex-wrap:wrap;margin:16px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 18px;flex:1;min-width:150px}
.stat .k{font-size:.8rem;color:var(--faint);text-transform:uppercase;letter-spacing:.5px;font-weight:700}
.stat .v{font-size:1.25rem;font-weight:800}
.stat .v.good{color:var(--ok)}
.result-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-top:10px;flex-wrap:wrap}
.result-row .meta{flex:1;min-width:180px}
.result-row .meta .nm{font-weight:700;font-size:.95rem;word-break:break-all}
.result-row .meta .sz{font-size:.86rem;color:var(--muted)}
.dl-btn{background:var(--teal);color:#fff;border:none;border-radius:9px;padding:10px 20px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block;font-size:.95rem}
.dl-btn:hover{background:var(--teal-dark)}

/* ---------- content blocks ---------- */
.steps{counter-reset:step;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 28px;margin:0 0 8px}
.steps li{list-style:none;position:relative;padding:16px 0 16px 52px;border-bottom:1px solid var(--line)}
.steps li:last-child{border-bottom:none}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:16px;width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.tips{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:0}
.tip{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}
.tip h3{margin:0 0 8px;font-size:1rem;color:var(--teal-dark)}
.tip p{margin:0;font-size:.93rem;color:var(--muted)}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:16px 20px}
.faq summary{font-weight:700;cursor:pointer;color:var(--ink)}
.faq summary::marker{color:var(--teal)}
.faq details p{margin:10px 0 0;color:var(--muted)}
.privacy-strip{background:linear-gradient(135deg,var(--teal-soft),var(--indigo-soft));border-radius:var(--radius);padding:30px;margin:8px 0}
.privacy-strip h2{margin:0 0 10px}
.privacy-strip ul{margin:0;padding-left:20px;color:var(--muted)}
.page-head{padding:36px 0 8px}
.page-head h1{margin:0 0 10px;font-size:2rem;letter-spacing:-.4px}
.page-head h1 .accent{color:var(--teal)}
.page-head .lead{color:var(--muted);font-size:1.08rem;max-width:720px;margin:0}
.breadcrumb{font-size:.86rem;color:var(--faint);padding-top:20px}
.breadcrumb a{color:var(--teal);text-decoration:none}
.ad-slot-comment{margin:6px 0}

/* ---------- footer ---------- */
.site-footer{background:#0f172a;color:#cbd5e1;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;padding:44px 0 20px}
.site-footer h4{color:#fff;margin:0 0 12px;font-size:1rem}
.site-footer p{font-size:.92rem;color:#94a3b8}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-links a{color:#cbd5e1;text-decoration:none;font-size:.93rem}
.footer-links a:hover{color:#fff;text-decoration:underline}
.copyright{border-top:1px solid #1e293b;padding:16px 0;text-align:center;font-size:.85rem;color:#94a3b8}

/* ---------- responsive ---------- */
@media (max-width:700px){
  .hero{padding:44px 16px 40px}
  .hero h1{font-size:1.75rem}
  .page-head h1{font-size:1.55rem}
  .tool-wrap{padding:18px}
  .dropzone{padding:28px 14px}
  .tool-actions .btn{width:100%;text-align:center}
  .file-row{flex-wrap:wrap}
  .file-name{white-space:normal}
  .header-inner{flex-wrap:wrap}
  .main-nav{margin-left:0;width:100%}
  .section{padding:36px 0}
}

/* ---------- Share row ---------- */
.share-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:28px 0;padding:16px 18px;background:var(--surface,#f8f6f0);border:1px solid var(--border,#e5ddc9);border-radius:14px}
.share-row .lbl{font-weight:700}
.share-btn{display:inline-block;padding:9px 18px;border-radius:999px;font-weight:700;font-size:.88rem;color:#fff;border:none;cursor:pointer;text-decoration:none;font-family:inherit}
.share-btn:hover{opacity:.9;color:#fff;text-decoration:none}
.share-btn.wa{background:#25d366}.share-btn.tg{background:#229ed9}.share-btn.fb{background:#1877f2}.share-btn.x{background:#111}.share-btn.copy{background:#c9a227;color:#1a1206}
@media(max-width:640px){.share-row{justify-content:center}}