/* ========================================
   łan.pl – design system
   ======================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #ffffff;
  --text: #111111;
  --text-muted: #666666;
  --text-light: #999999;
  --border: #e8e8e8;
  --surface: #f7f7f5;
  --accent: #1e6e3c;
  --accent-light: #f0f7f3;
  --accent-mid: #d4ead9;
  --cat-rynek: #2563eb;
  --cat-rynek-bg: #eff6ff;
  --cat-prawo: #7c3aed;
  --cat-prawo-bg: #f5f3ff;
  --cat-inwest: #d97706;
  --cat-inwest-bg: #fffbeb;
  --cat-tech: #0891b2;
  --cat-tech-bg: #ecfeff;
  --cat-poradnik: #1e6e3c;
  --cat-poradnik-bg: #f0f7f3;
  --max-w: 1200px;
  --article-w: 720px;
  --radius: 4px;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ── Container ── */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.container--narrow {
  max-width: var(--article-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Header ── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}

.site-logo span {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 32px;
  list-style: none;
}

.site-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  transition: color 0.15s;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav .cta-link {
  color: var(--accent);
  font-weight: 600;
}

.site-nav .cta-link:hover {
  color: #155c30;
}

/* ── Hero (homepage) ── */

.hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
}

.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--text);
  max-width: 780px;
  margin-bottom: 24px;
}

.hero__lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 50px;
  transition: background 0.15s, transform 0.15s;
}

.hero__cta:hover {
  background: #155c30;
  transform: translateY(-1px);
}

.hero__cta svg {
  width: 16px;
  height: 16px;
}

/* ── Featured section ── */

.featured {
  padding: 80px 0 60px;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 32px;
}

.featured__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.featured-card {
  background: var(--bg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  transition: background 0.15s;
}

.featured-card:hover {
  background: var(--surface);
}

.featured-card--main {
  padding: 48px 44px;
}

.card-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
  margin-bottom: 16px;
  width: fit-content;
}

.tag--poradnik { background: var(--cat-poradnik-bg); color: var(--cat-poradnik); }
.tag--rynek    { background: var(--cat-rynek-bg);    color: var(--cat-rynek); }
.tag--prawo    { background: var(--cat-prawo-bg);    color: var(--cat-prawo); }
.tag--inwest   { background: var(--cat-inwest-bg);   color: var(--cat-inwest); }
.tag--tech     { background: var(--cat-tech-bg);     color: var(--cat-tech); }

.featured-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text);
  transition: color 0.15s;
}

.featured-card--main .featured-card__title {
  font-size: 1.65rem;
}

.featured-card:hover .featured-card__title {
  color: var(--accent);
}

.featured-card__excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}

.card-meta {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* ── Articles grid ── */

.articles-section {
  padding: 60px 0 100px;
}

.articles-section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 40px;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
}

.article-card {
  display: flex;
  flex-direction: column;
  border-top: 2px solid var(--border);
  padding-top: 24px;
  transition: border-color 0.15s;
}

.article-card:hover {
  border-top-color: var(--accent);
}

.article-card__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 10px;
  transition: color 0.15s;
}

.article-card:hover .article-card__title {
  color: var(--accent);
}

.article-card__excerpt {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 14px;
}

/* ── Promo banner ── */

.promo-banner {
  background: var(--accent);
  color: #fff;
  padding: 72px 0;
  margin: 0;
}

.promo-banner__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.promo-banner__text {
  flex: 1;
}

.promo-banner__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 16px;
}

.promo-banner__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.promo-banner__desc {
  font-size: 1rem;
  opacity: 0.85;
  line-height: 1.65;
  max-width: 540px;
}

.promo-banner__action {
  flex-shrink: 0;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: 50px;
  transition: transform 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* ── Footer ── */

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 64px 0 40px;
}

.site-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand__logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.footer-brand__logo span {
  color: var(--accent);
}

.footer-brand__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 280px;
}

.footer-col__title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 16px;
}

.footer-col__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col__list a {
  font-size: 0.87rem;
  color: var(--text-muted);
  transition: color 0.15s;
}

.footer-col__list a:hover {
  color: var(--accent);
}

.site-footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-light);
}

/* ── Article page ── */

.article-page {
  padding: 64px 0 100px;
}

.article-page__header {
  max-width: var(--article-w);
  margin: 0 auto 56px;
  padding: 0 32px;
}

.article-breadcrumb {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.article-breadcrumb a {
  color: var(--text-muted);
  transition: color 0.15s;
}

.article-breadcrumb a:hover {
  color: var(--accent);
}

.article-breadcrumb span {
  opacity: 0.4;
}

.article-page__tag {
  margin-bottom: 20px;
}

.article-page__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 20px;
}

.article-page__lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.article-page__meta {
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  gap: 16px;
}

.article-page__divider {
  border: none;
  border-top: 1px solid var(--border);
  max-width: var(--article-w);
  margin: 0 auto 56px;
}

.article-body {
  max-width: var(--article-w);
  margin: 0 auto;
  padding: 0 32px;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin: 48px 0 16px;
  line-height: 1.25;
}

.article-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 32px 0 12px;
}

.article-body p {
  margin-bottom: 24px;
  font-size: 1rem;
  line-height: 1.8;
  color: #2a2a2a;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 6px;
  font-size: 1rem;
  color: #2a2a2a;
}

.article-body strong {
  font-weight: 600;
  color: var(--text);
}

.callout {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 24px 28px;
  margin: 40px 0;
}

.callout p {
  margin-bottom: 0;
  font-size: 0.97rem;
  color: #1a4d2c;
}

.callout a {
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px solid var(--accent-mid);
  transition: border-color 0.15s;
}

.callout a:hover {
  border-color: var(--accent);
}

.article-cta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px;
  margin: 56px 0 0;
  text-align: center;
}

.article-cta__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.article-cta__title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.article-cta__desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.btn-green {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 50px;
  transition: background 0.15s, transform 0.15s;
}

.btn-green:hover {
  background: #155c30;
  transform: translateY(-1px);
}

/* ── Related articles ── */

.related {
  max-width: var(--article-w);
  margin: 80px auto 0;
  padding: 0 32px;
  border-top: 1px solid var(--border);
  padding-top: 56px;
}

.related__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  border-top: 2px solid var(--border);
  padding-top: 18px;
  transition: border-color 0.15s;
}

.related-card:hover {
  border-top-color: var(--accent);
}

.related-card__title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  transition: color 0.15s;
}

.related-card:hover .related-card__title {
  color: var(--accent);
}

/* ── Responsive ── */

@media (max-width: 1024px) {
  .featured__grid {
    grid-template-columns: 1fr 1fr;
  }
  .featured-card:last-child {
    display: none;
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  html { font-size: 17px; }

  .container, .container--narrow {
    padding: 0 20px;
  }

  .site-header__inner {
    padding: 0 20px;
  }

  .site-nav {
    gap: 20px;
  }

  .hero {
    padding: 64px 0 56px;
  }

  .hero__inner {
    padding: 0 20px;
  }

  .featured__grid {
    grid-template-columns: 1fr;
  }

  .articles-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .promo-banner__inner {
    flex-direction: column;
    padding: 0 20px;
    gap: 32px;
    text-align: center;
  }

  .promo-banner__desc {
    margin-left: auto;
    margin-right: auto;
  }

  .related__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .site-nav li:not(:first-child):not(:last-child) {
    display: none;
  }
}