/* =========================================================
   LIBROX — biuro rachunkowe | static site stylesheet
   No frameworks. Lightweight, responsive, accessible.
   ========================================================= */

:root {
  --accent:        #f5921e;   /* Librox orange */
  --accent-2:      #f7b733;   /* lighter amber (gradient) */
  --accent-dark:   #d97706;
  --ink:           #1f2937;   /* main text */
  --ink-soft:      #4b5563;   /* secondary text */
  --ink-muted:     #6b7280;
  --navy:          #16232f;   /* dark sections */
  --navy-2:        #1f3242;
  --bg:            #ffffff;
  --bg-soft:       #faf8f4;   /* warm off-white */
  --bg-card:       #ffffff;
  --line:          #e7e2d9;
  --line-soft:     #eef0f2;
  --radius:        14px;
  --radius-sm:     9px;
  --shadow-sm:     0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.05);
  --shadow-md:     0 8px 24px rgba(16,24,40,.08);
  --shadow-lg:     0 20px 48px rgba(16,24,40,.12);
  --maxw:          1140px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-dark); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.2; font-weight: 700; margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.01em; }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1.1em; color: var(--ink-soft); }
ul, ol { color: var(--ink-soft); }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 72px 0; }
.section--soft { background: var(--bg-soft); }
.section--navy { background: var(--navy); color: #d8e0e7; }
.section--navy h2, .section--navy h3 { color: #fff; }
.section--tight { padding: 48px 0; }
.text-center { text-align: center; }
.lead { font-size: 1.18rem; color: var(--ink-soft); max-width: 720px; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-dark); margin-bottom: .8rem;
}
.section--navy .eyebrow { color: var(--accent-2); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .8em 1.5em; border-radius: 999px; font-weight: 600; font-size: 1rem;
  cursor: pointer; border: 2px solid transparent; transition: all .18s ease;
  line-height: 1;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff; box-shadow: 0 6px 18px rgba(245,146,30,.35);
}
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(245,146,30,.45); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn--light { background:#fff; color: var(--navy); }
.btn--light:hover { color: var(--accent-dark); transform: translateY(-2px); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; height: 76px; }
.nav__logo img { height: 46px; width: auto; }
.nav__menu { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__menu a {
  display: block; padding: 10px 14px; color: var(--ink); font-weight: 600; font-size: .97rem;
  border-radius: 8px;
}
.nav__menu a:hover, .nav__menu a[aria-current="page"] { color: var(--accent-dark); background: var(--bg-soft); }

/* dropdown */
.has-sub { position: relative; }
.has-sub > a::after { content: "▾"; font-size: .7em; margin-left: .35em; opacity: .6; }
.sub {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 262px;
  background: #fff; border: 1px solid var(--line-soft); border-radius: 12px;
  box-shadow: var(--shadow-md); padding: 8px; list-style: none; margin: 0;
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .16s ease;
}
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: translateY(0); }
.sub a { padding: 9px 12px; font-weight: 500; font-size: .93rem; border-radius: 8px; }

.nav__cta { display: flex; align-items: center; gap: 14px; }
.nav__phone { font-weight: 700; color: var(--navy); white-space: nowrap; }
.nav__phone:hover { color: var(--accent-dark); }
.nav__toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 8px;
  width: 44px; height: 44px;
}
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; display: block; width: 24px; height: 2px; background: var(--navy);
  position: relative; transition: .2s;
}
.nav__toggle span::before { position: absolute; top: -7px; }
.nav__toggle span::after  { position: absolute; top: 7px; }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(247,183,51,.20), transparent 60%),
    radial-gradient(800px 400px at 10% 110%, rgba(245,146,30,.10), transparent 60%),
    var(--bg-soft);
  padding: 84px 0 76px;
}
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 span { color: var(--accent-dark); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 18px 28px; margin-top: 34px; }
.hero__badge { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); font-size: .95rem; }
.hero__badge .ico { color: var(--accent); flex: none; }
.hero__art {
  background: linear-gradient(150deg, var(--navy), var(--navy-2));
  border-radius: 20px; padding: 34px; color: #fff; box-shadow: var(--shadow-lg);
}
.hero__art h3 { color: #fff; font-size: 1.15rem; }
.hero__art .price { font-size: 2.4rem; font-weight: 800; color: var(--accent-2); line-height: 1; }
.hero__art ul { list-style: none; padding: 0; margin: 18px 0 0; }
.hero__art li { padding: 10px 0; border-top: 1px solid rgba(255,255,255,.12); color: #cdd6de; display: flex; justify-content: space-between; gap: 14px; }
.hero__art li b { color: #fff; }

/* ---------- feature / card grids ---------- */
.grid { display: grid; gap: 26px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card); border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm); transition: transform .18s ease, box-shadow .18s ease;
}
.card--link:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line); }
.card h3 { margin-bottom: .4em; }
.card p { margin-bottom: .6em; font-size: .98rem; }
.card__ico {
  width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(247,183,51,.18), rgba(245,146,30,.14));
  color: var(--accent-dark); margin-bottom: 16px;
}
.card__more { font-weight: 600; font-size: .93rem; color: var(--accent-dark); }
.card--link:hover .card__more { color: var(--accent); }

/* value/atuty items */
.atut { display: flex; gap: 16px; }
.atut .ico {
  flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--navy); color: var(--accent-2);
}
.atut h3 { font-size: 1.08rem; margin-bottom: .3em; }
.atut p { font-size: .96rem; margin: 0; }

/* ---------- content pages (prose) ---------- */
.page-head { background: var(--bg-soft); border-bottom: 1px solid var(--line-soft); padding: 46px 0; }
.breadcrumbs { font-size: .88rem; color: var(--ink-muted); margin-bottom: .6rem; }
.breadcrumbs a { color: var(--ink-muted); }
.breadcrumbs a:hover { color: var(--accent-dark); }
.prose { max-width: 820px; }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; color: var(--accent-dark); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin: .4em 0; }
.prose ul li::marker { color: var(--accent); }

.checklist { list-style: none; padding: 0; margin: 1.2em 0; }
.checklist li { position: relative; padding: 8px 0 8px 34px; border-bottom: 1px dashed var(--line); color: var(--ink-soft); }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 8px; color: #fff; font-size: .78rem; font-weight: 700;
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
}

/* ---------- pricing tables ---------- */
.price-block { margin: 0 0 30px; }
.price-table {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.price-table caption {
  caption-side: top; text-align: left; font-weight: 700; color: var(--navy);
  font-size: 1.15rem; padding: 0 0 12px;
}
.price-table th, .price-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); }
.price-table thead th { background: var(--navy); color: #fff; font-size: .9rem; letter-spacing: .02em; }
.price-table tbody tr:last-child td { border-bottom: 0; }
.price-table tbody tr:nth-child(even) td { background: var(--bg-soft); }
.price-table td.price { font-weight: 700; color: var(--accent-dark); white-space: nowrap; }
.price-note { font-size: .9rem; color: var(--ink-muted); margin-top: 8px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; border-radius: 20px; padding: 44px; text-align: center;
  box-shadow: var(--shadow-md);
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.92); max-width: 620px; margin: 0 auto 22px; }

/* ---------- blog ---------- */
.post-card { display: flex; flex-direction: column; height: 100%; }
.post-card .date { font-size: .82rem; color: var(--accent-dark); font-weight: 600; letter-spacing: .03em; text-transform: uppercase; }
.post-card h3 { margin: .35em 0 .5em; font-size: 1.12rem; }
.post-card h3 a { color: var(--navy); }
.post-card h3 a:hover { color: var(--accent-dark); }
.post-card p { font-size: .96rem; }
.post-card .card__more { margin-top: auto; }
.post-meta { color: var(--ink-muted); font-size: .92rem; margin-bottom: 1.5em; }
.legal-note {
  margin-top: 2.4em; padding: 16px 20px; font-size: .9rem; color: var(--ink-muted);
  background: var(--bg-soft); border-left: 3px solid var(--accent); border-radius: 8px;
}
.legal-note a { color: var(--accent-dark); font-weight: 600; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line-soft); }
.info-list .ico { flex: none; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--bg-soft); color: var(--accent-dark); }
.info-list .lbl { font-size: .8rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: .05em; }
.info-list .val { font-weight: 600; color: var(--navy); }
.info-list a.val:hover { color: var(--accent-dark); }
.map-embed { border: 0; width: 100%; height: 100%; min-height: 340px; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.data-card { background: var(--bg-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 24px 28px; }
.data-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; }
.data-card dt { color: var(--ink-muted); font-size: .92rem; }
.data-card dd { margin: 0; font-weight: 600; color: var(--navy); font-size: .95rem; }

/* ---------- form embed (Google Form) ---------- */
.form-embed {
  width: 100%; border: 0; border-radius: var(--radius); background: #fff;
  box-shadow: var(--shadow-sm); min-height: 640px; display: block;
}
.form-fallback {
  background: var(--bg-soft); border: 1px dashed var(--line);
  border-radius: var(--radius); padding: 40px 28px; text-align: center;
}
.form-fallback h3 { margin-bottom: .4em; }
.form-fallback p { max-width: 460px; margin: 0 auto 20px; }

/* ---------- consent placeholder (Google embeds) ---------- */
.consent-box {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; text-align: center; padding: 28px 22px;
  background: var(--bg-soft); border: 1px dashed var(--line); border-radius: var(--radius);
}
.consent-box__msg { margin: 0; color: var(--ink-soft); max-width: 460px; }
.consent-note { margin: 0; font-size: .82rem; color: var(--ink-muted); max-width: 460px; }
.consent-note a { color: var(--accent-dark); font-weight: 600; }

/* ---------- cookie banner ---------- */
.cookie-banner {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 200;
  max-width: 720px; margin: 0 auto;
  background: #fff; border: 1px solid var(--line-soft); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 18px 20px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
/* Atrybut [hidden] musi wygrać z display:flex powyżej, inaczej baner nie znika */
.cookie-banner[hidden] { display: none; }
.cookie-banner__txt { margin: 0; font-size: .92rem; color: var(--ink-soft); flex: 1 1 320px; }
.cookie-banner__txt a { color: var(--accent-dark); font-weight: 600; }
.cookie-banner__btns { display: flex; gap: 10px; flex: 0 0 auto; }
.cookie-banner .btn { padding: .6em 1.1em; font-size: .92rem; }
@media (max-width: 520px) { .cookie-banner__btns { width: 100%; } .cookie-banner__btns .btn { flex: 1; justify-content: center; } }

/* ---------- footer ---------- */
.site-footer { background: var(--navy); color: #aab6c0; padding: 56px 0 26px; font-size: .95rem; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1em; letter-spacing: .02em; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px; }
.site-footer a { color: #aab6c0; }
.site-footer a:hover { color: var(--accent-2); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin: 8px 0; }
.footer-logo { height: 44px; margin-bottom: 16px; filter: brightness(0) invert(1); opacity: .95; }
.footer-about p { color: #92a0ab; font-size: .93rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding-top: 22px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; color: #7d8b96; font-size: .88rem;
}
.footer-bottom a { color: #7d8b96; }

/* ---------- misc ---------- */
.badge-cert {
  display: inline-flex; gap: 8px; align-items: center; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .85rem;
  font-weight: 600; color: var(--ink-soft);
}
.section-title { text-align: center; max-width: 680px; margin: 0 auto 44px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .nav__toggle { display: block; }
  .nav__cta .nav__phone { display: none; }
  .nav__menu {
    position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; padding: 12px; gap: 2px; border-bottom: 1px solid var(--line-soft);
    box-shadow: var(--shadow-md); transform: translateY(-120%); transition: transform .22s ease;
    max-height: calc(100vh - 76px); overflow-y: auto;
  }
  .nav__menu.open { transform: translateY(0); }
  .nav__menu a { padding: 12px 14px; }
  .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 4px 12px; min-width: 0; }
  .has-sub > a::after { display: none; }
}
@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .cta-band { padding: 32px 22px; }
  body { font-size: 16px; }
}