/* InvoiceToExcel — design system (matches bizdaycounter.com polish) */
:root{
  --ink:#0f1b2d;
  --muted:#5b6b82;
  --accent:#0b5fff;
  --accent2:#6d3df5;
  --accent-dark:#0a3aa0;
  --bg:#f4f7fc;
  --card:#fff;
  --line:#e2e9f3;
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
h2{margin:2.2em 0 .6em;font-size:1.35rem;letter-spacing:-.01em}
h2:first-child{margin-top:0}
p{margin:0 0 1em}

/* ---------- Sticky header ---------- */
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em;padding:12px 0}
.mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:inline-flex;align-items:center;justify-content:center;flex:none}
nav.tools{display:flex;gap:2px;flex-wrap:wrap;padding:8px 0;align-items:center}
nav.tools a{color:var(--muted);text-decoration:none;font-size:.9rem;font-weight:600;padding:8px 12px;border-radius:8px;white-space:nowrap}
nav.tools a:hover{color:var(--accent);background:#eef4ff}
.has-drop{position:relative}
.dropdown{display:none;position:absolute;top:100%;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px -12px rgba(15,27,45,.25);padding:8px;min-width:270px;z-index:20;max-height:70vh;overflow:auto}
.has-drop:hover .dropdown,.has-drop:focus-within .dropdown{display:block}
.dropdown a{display:block;padding:8px 12px;font-size:.88rem}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(120deg,#0a3aa0 0%,#0b5fff 50%,#6d3df5 100%);color:#fff;padding:54px 0 96px}
.hero h1{font-size:2.35rem;line-height:1.18;margin:0 0 14px;letter-spacing:-.02em;max-width:700px}
.hero .lede{color:#dbe7ff;font-size:1.12rem;max-width:700px;margin:0}
.hero .badges{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.hero .badges span{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.28);padding:5px 13px;border-radius:999px;font-size:.82rem;font-weight:600}
.hero-compact{padding:44px 0 72px}
.hero-compact h1{font-size:1.9rem}
.hero .breadcrumb{margin:0 0 10px;font-size:.85rem;color:#bcd2ff}
.hero .breadcrumb a{color:#fff;text-decoration:none;font-weight:600}
.hero .breadcrumb a:hover{text-decoration:underline}

/* ---------- App card (overlaps hero) ---------- */
.app-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:-66px 0 10px;box-shadow:0 20px 55px -14px rgba(11,95,255,.35);position:relative;z-index:1}
.dropzone{border:2px dashed var(--accent);border-radius:12px;background:#f2f7ff;padding:3rem 1.5rem;text-align:center;cursor:pointer;transition:background .2s,transform .2s}
.dropzone:hover,.dropzone:focus{background:#e6efff;outline:none}
.dropzone.drag-over{background:#d8e6ff;transform:scale(1.01)}
.dropzone-title{font-size:1.25rem;font-weight:700;margin:0 0 .5rem}
.dropzone-sub{color:var(--muted);margin:0}
.counter{text-align:center;color:var(--muted);margin:1rem 0 0;font-size:.95rem}
.error{background:#fef2f2;color:#b00020;border:1px solid #fecaca;border-radius:10px;padding:.8rem 1rem;margin-top:1rem;text-align:center;font-weight:600}
.processing{text-align:center;padding:2rem 0 1rem;color:var(--muted)}
.spinner{width:40px;height:40px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;margin:0 auto 1rem;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.cap-card{border:1px solid var(--line);border-radius:14px;background:#f2f7ff;padding:2.5rem 1.5rem;text-align:center;margin-top:1rem}
.cap-card h2{margin:0 0 .5rem;font-size:1.4rem}
.cap-card p{color:var(--muted);margin:0 0 1.5rem}

/* ---------- Results ---------- */
.results h2{margin-top:0}
.hint{color:var(--muted);font-size:.95rem;margin:-.5rem 0 1rem}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem}
.fields label,.totals label{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;font-weight:600;color:var(--muted)}
input[type="text"],input[type="date"],input[type="number"]{padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:1rem;width:100%;background:#fff;color:var(--ink)}
input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(11,95,255,.15)}
.table-wrap{overflow-x:auto;margin-bottom:1rem;border:1px solid var(--line);border-radius:12px}
table.line-items{width:100%;border-collapse:collapse;font-size:.95rem}
.line-items th{text-align:left;padding:.75rem;background:var(--bg);border-bottom:2px solid var(--line);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);white-space:nowrap}
.line-items td{padding:.4rem .5rem;border-bottom:1px solid var(--line)}
.line-items tr:last-child td{border-bottom:none}
.line-items td input{padding:.5rem .6rem;border:1px solid var(--line);border-radius:8px;width:100%;font-size:.95rem}
.line-items td input.num{text-align:right}
.remove-row{background:none;border:none;color:#b00020;font-size:1.2rem;cursor:pointer;padding:.3rem .6rem;border-radius:6px}
.remove-row:hover{background:#fef2f2}
.totals{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;align-items:end;margin:1.5rem 0;padding:1.25rem;background:var(--bg);border:1px solid var(--line);border-radius:14px}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;border:1px solid transparent;text-decoration:none;transition:filter .15s,transform .1s,background .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;border:0}
.btn-primary:hover{filter:brightness(1.06)}
.btn-secondary{background:#fff;color:var(--accent);border:1.5px solid var(--accent)}
.btn-secondary:hover{background:#eef4ff}
.btn-ghost{background:none;color:var(--muted);border:1.5px solid var(--line)}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent)}
.btn:disabled{opacity:.6;cursor:default}
.exports{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}

/* ---------- Steps / features ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:18px 0 8px;padding:0;list-style:none}
.step,.steps li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.step .n{display:inline-flex;width:30px;height:30px;border-radius:50%;background:#e8f0ff;color:var(--accent);font-weight:800;align-items:center;justify-content:center;margin-bottom:8px}
.step h3{margin:0 0 6px;font-size:1rem}
.step p{margin:0;color:var(--muted);font-size:.9rem}
.steps li strong{color:var(--ink)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:18px 0 8px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.feature .ico{display:inline-flex;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;align-items:center;justify-content:center;margin-bottom:10px}
.feature h3{margin:0 0 6px;font-size:1rem}
.feature p{margin:0;color:var(--muted);font-size:.9rem}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--line);border-radius:12px;margin:10px 0;background:#fff;overflow:hidden}
.faq summary{padding:15px 18px;font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--accent);font-weight:800;margin-right:10px}
.faq details[open] summary::before{content:"–"}
.faq details div{padding:0 18px 16px;color:var(--muted)}
.faq details div p{margin:0 0 .8em}
.faq details div p:last-child{margin-bottom:0}

/* ---------- Guide link grid ---------- */
.linkgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px;margin:16px 0}
.linkgrid a{display:block;padding:13px 15px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);font-size:.93rem;font-weight:600;background:#fff}
.linkgrid a:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 4px 14px -6px rgba(11,95,255,.35)}

/* ---------- Pricing ---------- */
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;max-width:1000px;margin:-48px auto 0;position:relative;z-index:1}
.tier-card{background:#fff;border-radius:var(--radius);box-shadow:0 20px 55px -18px rgba(11,95,255,.35);padding:2rem;position:relative;border:2px solid var(--line);display:flex;flex-direction:column}
.tier-card.popular{border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,linear-gradient(135deg,var(--accent),var(--accent2)) border-box}
.tier-card .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;font-size:.8rem;font-weight:700;padding:.25rem .9rem;border-radius:999px;white-space:nowrap;margin:0}
.tier-card h2{margin:0 0 .5rem;font-size:1.25rem}
.tier-card .price{font-size:2.2rem;font-weight:800;margin:0 0 1rem;letter-spacing:-.02em}
.tier-card .price span{font-size:1rem;font-weight:400;color:var(--muted)}
.tier-card ul{list-style:none;padding:0;margin:0 0 1.5rem;flex:1}
.tier-card li{padding:.45rem 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.95rem}
.tier-card li:last-child{border-bottom:none}
.tier-card li::before{content:"✓";color:var(--accent);font-weight:800;margin-right:8px}
.tier-card .btn{width:100%;text-align:center}
#checkoutError{max-width:860px;margin:1rem auto 0}

/* ---------- SEO page content components ---------- */
.breadcrumb{margin:0 0 1rem;font-size:.88rem;color:var(--muted)}
.breadcrumb a{color:var(--accent);text-decoration:none;font-weight:600}
.breadcrumb a:hover{text-decoration:underline}
.benefits{list-style:none;padding:0;margin:16px 0;display:grid;gap:8px}
.benefits li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.benefits li::before{content:"✓";color:var(--accent);font-weight:800;margin-right:8px}
.qa{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}
.qa h3{margin:0 0 6px;font-size:1.02rem}
.qa p{margin:0;color:var(--muted)}
.cta-box{background:linear-gradient(120deg,#0a3aa0 0%,#0b5fff 50%,#6d3df5 100%);color:#fff;border-radius:var(--radius);padding:30px 24px;margin:30px 0;text-align:center}
.cta-box h2{color:#fff;margin:0 0 8px;font-size:1.4rem}
.cta-box p{color:#dbe7ff;margin:0 0 18px}
.cta-box .btn{background:#fff;color:var(--accent);border:0}
.cta-box .btn:hover{background:#eef4ff}
.related{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.related a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 15px;font-size:.88rem;font-weight:600;color:var(--ink);text-decoration:none}
.related a:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- Footer ---------- */
footer.site{background:#0f1b2d;color:#93a3bd;margin-top:56px;padding:34px 0 44px;font-size:.87rem}
footer.site a{color:#c3d2ea;text-decoration:none}
footer.site a:hover{color:#fff}
footer.site p{margin:8px 0;max-width:720px}
footer.site .flabel{color:#fff;font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;margin:18px 0 8px}
footer.site .linkgrid{margin:0}
footer.site .linkgrid a{background:transparent;border:1px solid #26344d;color:#c3d2ea;font-weight:600}
footer.site .linkgrid a:hover{border-color:var(--accent);color:#fff;box-shadow:none}

/* ---------- Responsive ---------- */
@media(max-width:640px){
  .hero h1{font-size:1.8rem}
  .hero-compact h1{font-size:1.6rem}
  .app-card{padding:20px;margin-top:-58px}
  .tiers{margin-top:-40px}
  .exports .btn{flex:1 1 100%;text-align:center}
  .totals{grid-template-columns:1fr}
  .nav{justify-content:center}
  .dropdown{position:fixed;left:12px;right:12px;top:auto}
}