/* css/seo.css — style stron SEO (Baza wiedzy, teoria, zadania, matura, korepetycje).
   Korzysta ze zmiennych :root z style.css (--purple, --magenta, --black, ...). */

.seo-main { max-width: 1100px; margin: 0 auto; padding: 0 20px 80px; }

/* Jasny przycisk na ciemnych tłach (hero/CTA) */
.btn-light { background: #fff; color: var(--dark-purple); border: none; font-weight: 700; box-shadow: 0 6px 18px rgba(0,0,0,.18); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,0,0,.28); color: var(--magenta); }

/* Breadcrumbs SEO */
.seo-breadcrumbs { font-size: .85rem; color: var(--text-secondary); margin: 22px 0 8px; }
.seo-breadcrumbs a { color: var(--purple); text-decoration: none; }
.seo-breadcrumbs a:hover { text-decoration: underline; }
.seo-breadcrumbs span[aria-current] { color: var(--black); font-weight: 600; }

/* Hero */
.seo-hero {
  background: linear-gradient(135deg, var(--black) 0%, var(--dark-purple) 100%);
  color: #fff; border-radius: 22px; padding: 44px 36px; margin: 14px 0 34px;
  box-shadow: 0 18px 50px rgba(86,54,234,.25);
}
.seo-hero .eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 700; color: #ffd6ef; margin: 0 0 12px; }
.seo-hero h1 { font-family: 'Poppins', sans-serif; font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.15; margin: 0 0 14px; }
.seo-hero p { font-size: 1.08rem; max-width: 760px; color: #e7e2ff; margin: 0; }
.seo-hero .hero-cta { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 12px; }

/* Treść / prose */
.prose h2 { font-family: 'Poppins', sans-serif; font-size: 1.55rem; color: var(--black); margin: 42px 0 14px; }
.prose h3 { font-size: 1.2rem; color: var(--dark-purple); margin: 26px 0 10px; }
.prose p { color: #1f2937; margin: 0 0 14px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; color: #1f2937; }
.prose li { margin: 6px 0; }
.prose strong { color: var(--black); }
.prose section { scroll-margin-top: 90px; }

/* Karty wzorów */
.formula-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin: 18px 0 8px; }
.formula-card { background: #fff; border: 1px solid #ece9ff; border-left: 4px solid var(--magenta); border-radius: 14px; padding: 16px 18px; box-shadow: 0 6px 20px rgba(17,24,39,.05); }
.formula-card .f-name { font-weight: 700; color: var(--dark-purple); font-size: .95rem; margin-bottom: 8px; }
.formula-card .f-eq { font-size: 1.15rem; margin: 6px 0 10px; overflow-x: auto; }
.formula-card .f-desc { font-size: .88rem; color: var(--text-secondary); }

/* Definicje */
.def-list { display: grid; gap: 10px; margin: 16px 0; }
.def-item { background: #faf9ff; border: 1px solid #efeaff; border-radius: 12px; padding: 14px 16px; }
.def-item dt { font-weight: 700; color: var(--black); margin-bottom: 4px; }
.def-item dd { margin: 0; color: var(--text-secondary); }

/* Zadania z rozwiązaniami */
.problem { background: #fff; border: 1px solid #ece9ff; border-radius: 16px; padding: 22px 24px; margin: 18px 0; box-shadow: 0 8px 26px rgba(17,24,39,.06); }
.problem .p-title { font-family: 'Poppins', sans-serif; font-size: 1.12rem; color: var(--black); margin: 0 0 10px; }
.problem .p-task { background: #f4f2ff; border-radius: 10px; padding: 12px 14px; margin-bottom: 14px; }
.problem .p-steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.problem .p-steps li { position: relative; padding: 10px 0 10px 42px; border-bottom: 1px dashed #eee; }
.problem .p-steps li:last-child { border-bottom: none; }
.problem .p-steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 8px; width: 28px; height: 28px; border-radius: 50%; background: var(--purple); color: #fff; font-weight: 700; font-size: .85rem; display: flex; align-items: center; justify-content: center; }
.problem .p-answer { margin-top: 14px; background: linear-gradient(135deg, var(--magenta), var(--purple)); color: #fff; border-radius: 10px; padding: 10px 14px; font-weight: 600; }
.problem .p-answer::before { content: "✓ Odpowiedź: "; font-weight: 800; }

/* FAQ */
.faq { margin: 18px 0; }
.faq details { background: #fff; border: 1px solid #ece9ff; border-radius: 12px; margin: 10px 0; padding: 4px 18px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--black); padding: 14px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 1.4rem; color: var(--purple); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 0 14px; color: var(--text-secondary); margin: 0; }

/* Linkowanie wewnętrzne / powiązane */
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin: 16px 0; }
.related-card { display: block; background: #fff; border: 1px solid #ece9ff; border-radius: 14px; padding: 16px 18px; text-decoration: none; color: var(--black); transition: transform .15s, box-shadow .15s; }
.related-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(107,77,246,.16); }
.related-card .rc-kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--magenta); font-weight: 700; }
.related-card .rc-title { font-weight: 700; margin: 6px 0 2px; }
.related-card .rc-desc { font-size: .85rem; color: var(--text-secondary); }

/* Pasek CTA */
.cta-band { background: linear-gradient(135deg, var(--purple), var(--magenta)); color: #fff; border-radius: 20px; padding: 34px 32px; margin: 46px 0; text-align: center; }
.cta-band h2 { color: #fff; font-family: 'Poppins', sans-serif; margin: 0 0 10px; }
.cta-band p { color: #f3e9ff; max-width: 620px; margin: 0 auto 20px; }
.cta-band .btn { margin: 4px; }

/* Spis treści / chip-nawigacja */
.chip-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 24px; }
.chip-nav a { background: #fff; border: 1px solid #e6e1ff; color: var(--dark-purple); border-radius: 999px; padding: 7px 14px; font-size: .85rem; text-decoration: none; font-weight: 600; }
.chip-nav a:hover { background: var(--purple); color: #fff; }

/* Hub Baza wiedzy */
.hub-section { margin: 40px 0; }
.hub-section h2 { font-family: 'Poppins', sans-serif; color: var(--black); border-bottom: 3px solid var(--magenta); display: inline-block; padding-bottom: 6px; }
.hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin-top: 18px; }

/* Tabela typowych zadań / wymagań */
.seo-table { width: 100%; border-collapse: collapse; margin: 16px 0; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 6px 20px rgba(17,24,39,.05); }
.seo-table th, .seo-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid #f0eefb; }
.seo-table th { background: #faf9ff; color: var(--dark-purple); font-size: .9rem; }

@media (max-width: 600px) {
  .seo-hero { padding: 30px 22px; }
  .seo-main { padding-bottom: 56px; }
}