* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #008080;
  color: #181818;
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 90%);
  margin: 0 auto;
}


/* HEADER */

.site-header {
  border-bottom: 1px solid #181818;
}

.navigation {
  min-height: 70px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.3rem;
  font-weight: bold;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a:hover {
  text-decoration: underline;
}


/* HERO */

.hero {
  padding: 120px 0;
  border-bottom: 1px solid #181818;
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero h1 {
  max-width: 800px;
  margin: 20px 0;

  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
}

.hero-text {
  max-width: 600px;
  font-size: 1.2rem;
}

.button {
  display: inline-block;

  margin-top: 24px;
  padding: 12px 20px;

  background: #181818;
  color: #f4f1e8;
}


/* ARTYKUŁY */

.articles {
  padding: 80px 0;
}

.articles h2,
.about h2 {
  font-size: 2rem;
  margin-bottom: 40px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-card {
  padding: 24px;
  border: 1px solid #181818;
}

.article-number {
  font-size: 0.8rem;
}

.article-card h3 {
  font-size: 1.5rem;
}

.article-card a {
  font-weight: bold;
}

/* STRONA ARTYKUŁU */

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

.article-container {
  max-width: 760px;
}

.article-page h1 {
  margin: 20px 0 30px;

  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 1;
}

.article-lead {
  font-size: 1.4rem;
  line-height: 1.5;
}

.article-page hr {
  margin: 50px 0;
  border: 0;
  border-top: 1px solid #181818;
}

.article-page h2 {
  margin-top: 50px;
  font-size: 2rem;
}

.article-page p {
  font-size: 1.1rem;
}

.back-link {
  display: inline-block;
  margin-top: 50px;
  font-weight: bold;
}

.back-link:hover {
  text-decoration: underline;
}

/* O PROJEKCIE */

.about {
  padding: 80px 0;
  border-top: 1px solid #181818;
}

.about p {
  max-width: 700px;
  font-size: 1.2rem;
}


/* FOOTER */

.site-footer {
  padding: 30px 0;
  border-top: 1px solid #181818;
}


/* TELEFONY */

@media (max-width: 700px) {

  .navigation {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    padding: 15px 0;
  }

  .nav-links {
    gap: 12px;
    flex-wrap: wrap;
  }

  .hero {
    padding: 80px 0;
  }

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

}