/* ============================================================
   perowskity.pl — motyw „kryształ perowskitu"
   Nowoczesny, typograficzny layout BEZ obrazków wyróżniających:
   grafit + fiolet (kryształ) + bursztyn (światło). Dark mode.
   Fonty: Sora (nagłówki) + Inter (tekst), self-hosted.
   Breakpointy: 1020 / 900 / 640 px.
   ============================================================ */

:root {
  --tlo: #f7f7fb;
  --powierzchnia: #ffffff;
  --powierzchnia-2: #f1f0f8;
  --atrament: #17161f;
  --atrament-2: #565467;
  --linia: #e6e4f0;
  --linia-pola: #8b87a3;   /* obrys pól formularzy — min. 3:1 na tle (WCAG 1.4.11) */
  --marka: #6d3df5;
  --marka-gleboka: #4c22c8;
  --marka-tinta: #efeafe;
  --akcent: #d97706;
  --akcent-jasny: #f59e0b;
  --ok: #166534;           /* przyciemniony: badge/powiadomienia >=4.5:1 w jasnym */
  --blad: #b91c1c;
  --cien: 0 10px 30px -12px rgba(23, 22, 31, .18);
  --promien: 16px;
  --grafit: #14131d;      /* hero/stopka — stałe w obu motywach */
  --grafit-2: #1d1b2b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --tlo: #0f0e16;
    --powierzchnia: #17161f;
    --powierzchnia-2: #1d1b2b;
    --atrament: #eceaf6;
    --atrament-2: #a5a2b8;
    --linia: #2a2840;
    --linia-pola: #6f6c8a;
    --marka: #a284ff;
    --marka-gleboka: #c3adff;
    --marka-tinta: #241f3d;
    --akcent: #fbbf24;
    --akcent-jasny: #fbbf24;
    --ok: #4ade80;
    --blad: #f87171;
    --cien: 0 10px 30px -12px rgba(0, 0, 0, .6);
  }
}

/* ---------- reset i baza ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: clamp(1rem, .96rem + .2vw, 1.0625rem);
  line-height: 1.7;
  color: var(--atrament);
  background: var(--tlo);
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--marka); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--marka-gleboka); }
:focus-visible { outline: 3px solid var(--marka); outline-offset: 2px; border-radius: 4px; }
.hero :focus-visible, .stopka :focus-visible, .btn-glowny:focus-visible { outline-color: var(--akcent-jasny); }
::selection { background: var(--marka); color: #fff; }
@media (prefers-color-scheme: dark) {
  ::selection { color: #17161f; }
}

h1, h2, h3, h4 {
  font-family: 'Sora', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.22;
  color: var(--atrament);
  text-wrap: balance;
}
h1 { font-size: clamp(1.7rem, 1.3rem + 1.8vw, 2.5rem); margin: .4em 0 .5em; }
h2 { font-size: clamp(1.3rem, 1.15rem + .8vw, 1.7rem); }
h3 { font-size: 1.12rem; }

.kontener { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.kontener.waska { max-width: 780px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.pomin {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--marka-gleboka); color: #fff; padding: 10px 18px; border-radius: 8px;
}
@media (prefers-color-scheme: dark) {
  .pomin { color: #17161f; background: var(--marka); }
}
.pomin:focus { left: 8px; }

/* ---------- nagłówek ---------- */
.naglowek {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--tlo) 82%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--linia);
}
.naglowek-wnetrze { display: flex; align-items: center; gap: 28px; min-height: 64px; }
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'Sora', sans-serif; font-weight: 700; font-size: 1.14rem;
  color: var(--atrament); text-decoration: none; letter-spacing: -.02em;
}
.logo i { font-style: normal; color: var(--marka); }
.logo .znak { color: var(--marka); flex: none; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  padding: 8px 14px; border-radius: 999px;
  font-size: .93rem; font-weight: 600; text-decoration: none; color: var(--atrament-2);
  transition: background .15s ease, color .15s ease;
}
.nav a:hover { color: var(--marka); background: var(--marka-tinta); }
.nav a[aria-current="page"] { color: var(--marka); background: var(--marka-tinta); }
.burger { display: none; }

/* ---------- hero (zawsze grafit + poświata) ---------- */
.hero {
  background:
    radial-gradient(56rem 30rem at 18% -18%, rgba(124, 77, 255, .38), transparent 60%),
    radial-gradient(40rem 24rem at 88% 118%, rgba(217, 119, 6, .22), transparent 60%),
    repeating-linear-gradient(60deg, transparent 0 46px, rgba(255, 255, 255, .045) 46px 47px),
    repeating-linear-gradient(-60deg, transparent 0 46px, rgba(255, 255, 255, .045) 46px 47px),
    var(--grafit);
  color: #f2f0fa;
  padding: clamp(56px, 5vw + 32px, 104px) 0;
}
.hero h1 { color: #fff; font-size: clamp(1.9rem, 1.3rem + 3vw, 3.3rem); margin: .35em 0; max-width: 21ch; }
.hero-eyebrow {
  display: inline-block; margin: 0;
  font-size: .82rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--akcent-jasny);
}
.hero-sub { max-width: 56ch; font-size: 1.08rem; color: #c9c5dd; margin: 0 0 1.6em; }
.hero-akcje { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- przyciski ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; border: 0; cursor: pointer;
  font: 600 .95rem/1.2 'Inter', sans-serif; text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-glowny {
  background: linear-gradient(135deg, #7c4dff, #5b21b6 60%);
  color: #fff; box-shadow: 0 8px 20px -8px rgba(109, 61, 245, .55);
}
.btn-glowny:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -8px rgba(109, 61, 245, .65); color: #fff; }
.btn-cichy {
  background: transparent; color: #e9e5fb;
  border: 1px solid rgba(233, 229, 251, .45);
}
.btn-cichy:hover { border-color: #e9e5fb; color: #fff; background: rgba(255, 255, 255, .06); }

/* ---------- sekcje ---------- */
.sekcja { padding: clamp(40px, 4vw + 16px, 72px) 0; }
.sekcja-tinta { background: var(--powierzchnia-2); }
.sekcja-tytul { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.sekcja-tytul h2 { margin: 0; }
.sekcja-sub { margin: 0 0 20px; color: var(--atrament-2); }
.wiecej { font-weight: 600; font-size: .93rem; text-decoration: none; white-space: nowrap; }
.licznik { color: var(--atrament-2); font-weight: 400; font-size: .6em; vertical-align: middle; }

/* ---------- karty artykułów ---------- */
.siatka-glowna { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; margin-top: 20px; }
.siatka-kart { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-content: start; }
.siatka-listing { grid-template-columns: repeat(3, 1fr); margin-top: 24px; }
.karta {
  background: var(--powierzchnia); border: 1px solid var(--linia); border-radius: var(--promien);
  overflow: hidden; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.karta:hover { transform: translateY(-3px); box-shadow: var(--cien); border-color: color-mix(in srgb, var(--marka) 45%, var(--linia)); }
.karta-link { display: flex; flex-direction: column; height: 100%; color: inherit; text-decoration: none; }
.karta-thumb {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 16 / 5.5; color: rgba(255, 255, 255, .85);
  background: linear-gradient(135deg, #241b52, #5b21b6 62%, #8b5cf6);
}
.karta:nth-child(3n) .karta-thumb { background: linear-gradient(135deg, #1c1440, #6d28d9 55%, #b45309); }
.karta:nth-child(3n+2) .karta-thumb { background: linear-gradient(135deg, #2a2158, #4f46e5 60%, #7c3aed); }
/* różnicowanie znaku na miniaturach — mniejsza monotonia siatki */
.karta:nth-child(2n) .karta-thumb .znak { transform: rotate(45deg) scale(1.12); }
.karta:nth-child(3n) .karta-thumb .znak { transform: rotate(-18deg) scale(.92); opacity: .9; }
.karta:nth-child(5n) .karta-thumb .znak { transform: rotate(12deg) scale(1.3); opacity: .75; }
.karta-tresc { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 6px; }
.karta-meta { margin: 0; font-size: .8rem; color: var(--atrament-2); display: flex; gap: 6px; flex-wrap: wrap; }
.karta-tytul { margin: 0; font-size: 1.02rem; font-weight: 600; line-height: 1.35; }
.karta-lead { margin: 2px 0 0; font-size: .9rem; color: var(--atrament-2); }

/* Strona główna — „Najnowsze": jednolita siatka RÓWNYCH kart (zamiast jednej
   wyróżnionej karty, która przy krótkim tekście zostawiała pustą przestrzeń).
   Tytuł i zajawka przycięte do 2 wierszy, żeby karty były jednakowej wysokości. */
.siatka-najnowsze { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 22px; }
.siatka-najnowsze .karta-thumb { aspect-ratio: 16 / 8; }
.siatka-najnowsze .karta-tytul,
.siatka-najnowsze .karta-lead {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
}
.siatka-najnowsze .karta-tytul { font-size: 1.05rem; }

/* ---------- kafle wiedzy / producenci ---------- */
.siatka-wiedza { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 20px; }
.kafel {
  display: flex; flex-direction: column; gap: 8px;
  background: var(--powierzchnia); border: 1px solid var(--linia); border-radius: var(--promien);
  padding: 22px; color: inherit; text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.kafel:hover { transform: translateY(-3px); box-shadow: var(--cien); border-color: color-mix(in srgb, var(--marka) 45%, var(--linia)); }
.kafel h3 { margin: 0; }
.kafel p { margin: 0; font-size: .9rem; color: var(--atrament-2); }
.kafel-dalej { margin-top: auto; padding-top: 8px; font-weight: 600; font-size: .9rem; color: var(--marka); }
.chipsy { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.chip {
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--linia);
  background: var(--powierzchnia); color: var(--atrament); font-weight: 600; font-size: .9rem;
  text-decoration: none; transition: border-color .15s ease, background .15s ease, color .15s ease;
}
.chip:hover { border-color: var(--marka); color: var(--marka); background: var(--marka-tinta); }

/* ---------- okruszki, meta, paginacja ---------- */
.okruszki { margin: 26px 0 4px; font-size: .85rem; color: var(--atrament-2); }
.okruszki a { color: var(--atrament-2); }
.okruszki a:hover { color: var(--marka); }
.okruszki .tu { color: var(--atrament); }
.artykul-naglowek { margin-bottom: 8px; }
.artykul-meta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; color: var(--atrament-2); font-size: .9rem; margin: -4px 0 0; }
.badge {
  padding: 3px 10px; border-radius: 999px; font-size: .78rem; font-weight: 600;
  background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok);
}
.artykul-lead { font-size: 1.12rem; color: var(--atrament-2); }
.artykul-powrot { margin: 40px 0 56px; }
.paginacja { display: flex; align-items: center; justify-content: center; gap: 18px; margin: 40px 0 56px; }
.pg {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--linia);
  background: var(--powierzchnia); font-weight: 600; font-size: .92rem; text-decoration: none;
}
.pg:hover { border-color: var(--marka); }
.pg-info { color: var(--atrament-2); font-size: .9rem; }

/* ---------- treść artykułu ---------- */
.artykul { padding-bottom: 24px; }
.prose { max-width: 70ch; }
.prose-p { max-width: 70ch; color: var(--atrament-2); }
.prose p { margin: 0 0 1.25em; }
.prose h2 { margin: 1.9em 0 .6em; font-size: 1.42rem; }
.prose h3 { margin: 1.6em 0 .5em; }
.prose ul, .prose ol { padding-left: 1.35em; margin: 0 0 1.25em; }
.prose li { margin: .35em 0; }
.prose li::marker { color: var(--marka); }
.prose blockquote {
  margin: 1.6em 0; padding: 4px 0 4px 20px;
  border-left: 3px solid var(--marka); color: var(--atrament-2); font-style: italic;
}
.prose hr { border: 0; border-top: 1px solid var(--linia); margin: 2.2em 0; }
.prose code { background: var(--powierzchnia-2); padding: 2px 6px; border-radius: 6px; font-size: .92em; }
.prose strong { font-weight: 600; } /* Inter variable 400-600 — świadomie 600 */
.prose img { border-radius: 12px; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; }
.prose td, .prose th { border: 1px solid var(--linia); padding: 8px 12px; }

/* ---------- miękkie CTA ---------- */
.cta {
  margin: 48px 0 8px; padding: 28px 28px 24px; border-radius: 20px; position: relative;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--powierzchnia), var(--powierzchnia)) padding-box,
    linear-gradient(135deg, #7c4dff, #d97706) border-box;
}
.cta-znak { color: var(--marka); margin-bottom: 4px; }
.cta h2 { margin: 0 0 .5em; font-size: 1.28rem; }
.cta p { margin: 0 0 1.2em; color: var(--atrament-2); max-width: 62ch; }
.cta-akcje { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.cta-form summary {
  cursor: pointer; font-weight: 600; color: var(--marka); font-size: .95rem;
  list-style: none;
}
.cta-form summary::before { content: '+ '; }
.cta-form[open] summary::before { content: '− '; }
.cta-form summary::-webkit-details-marker { display: none; }
.cta-form { width: 100%; }

/* ---------- formularze ---------- */
.formularz { display: grid; gap: 14px; max-width: 460px; margin: 20px 0 56px; }
.formularz-maly { margin: 14px 0 4px; }
.formularz label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; }
.formularz input[type="text"], .formularz textarea {
  padding: 11px 14px; border-radius: 10px; border: 1px solid var(--linia-pola);
  background: var(--powierzchnia); color: var(--atrament);
  font: 400 1rem/1.5 'Inter', sans-serif;
}
.formularz input:focus, .formularz textarea:focus { border-color: var(--marka); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--marka) 22%, transparent); }
.formularz .zgoda { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: .82rem; color: var(--atrament-2); }
.formularz .zgoda input { margin-top: 3px; }
.formularz .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.powiadomienie { padding: 12px 16px; border-radius: 10px; font-weight: 600; max-width: 460px; }
.powiadomienie.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }
.powiadomienie.blad { background: color-mix(in srgb, var(--blad) 12%, transparent); color: var(--blad); }

/* ---------- stopka (zawsze grafit) ---------- */
.stopka { background: var(--grafit); color: #b9b5cc; margin-top: 64px; padding: 48px 0 36px; font-size: .9rem; }
.stopka a { color: #d9d5ea; }
.stopka a:hover { color: #fff; }
.stopka-siatka { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 36px; }
.logo-stopka { color: #fff; font-size: 1.02rem; }
.stopka-opis { margin: 12px 0 0; max-width: 44ch; }
.stopka-nav { display: grid; gap: 8px; align-content: start; }
.stopka-nav a { text-decoration: none; }
.stopka-operator p { margin: 0 0 10px; }
.stopka-operator span { font-size: .82rem; color: #8f8ba6; }
.stopka-rok { color: #8f8ba6; font-size: .82rem; }

/* ---------- responsywność ---------- */
@media (max-width: 1020px) {
  .siatka-listing { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .naglowek-wnetrze { gap: 12px; }
  .burger {
    display: inline-flex; flex-direction: column; gap: 4px; margin-left: auto;
    background: none; border: 1px solid var(--linia); border-radius: 10px; padding: 10px;
    cursor: pointer;
  }
  .burger span:not(.sr) { width: 20px; height: 2px; background: var(--atrament); border-radius: 2px; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; padding: 10px 16px 16px; gap: 2px;
    background: var(--tlo); border-bottom: 1px solid var(--linia); box-shadow: var(--cien);
  }
  .nav.otwarte { display: flex; }
  .nav a { padding: 12px 14px; font-size: 1rem; }
  .siatka-glowna { grid-template-columns: 1fr; }
  .siatka-najnowsze { grid-template-columns: 1fr 1fr; }
  .siatka-wiedza { grid-template-columns: 1fr 1fr; }
  .stopka-siatka { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .kontener { padding: 0 18px; }
  .siatka-kart, .siatka-listing, .siatka-najnowsze, .siatka-wiedza, .stopka-siatka { grid-template-columns: 1fr; }
  .hero-akcje .btn { width: 100%; }
  .cta { padding: 22px 18px; }
  .formularz { max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}