/* ==========================================================================
   Bioodpady.pl — prosty layout, grid 12 (desktop) / 1 (mobile)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #f4f8e8;
  --hero-bg: #d9e8ac;
  --hero-bg-soft: #e4edc2;
  --navy: #171a34;
  --navy-soft: #2b2f52;
  --accent: #ef9d4c;
  --accent-dark: #d97e2b;
  --white: #ffffff;
  --muted: #565b46;
  --border: #c9d6a0;

  --container-width: 1200px;
  --gap: 28px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  color: var(--navy);
  background: var(--bg);
  line-height: 1.65;
}

h1, h2, h3, .logo {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  line-height: 1.2;
  margin: 0 0 .5em;
}

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

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Grid: 12 columns desktop, 1 column mobile ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap);
}

.grid > * { grid-column: span 12; }

.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }

@media (max-width: 768px) {
  .grid { grid-template-columns: 1fr; gap: 20px; }
  .grid > * { grid-column: 1 / -1; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: transform .15s ease, background .15s ease;
}

.btn-dark {
  background: var(--navy);
  color: var(--hero-bg);
}

.btn-dark:hover { background: var(--navy-soft); transform: translateY(-1px); }

/* ---- Header ---- */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.logo {
  font-weight: 800;
  font-size: 24px;
  color: var(--navy);
  letter-spacing: -.02em;
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.nav a:hover { color: var(--accent-dark); }

@media (max-width: 600px) {
  .nav { gap: 16px; font-size: 12px; }
  .nav .btn { padding: 10px 18px; }
}

/* ---- Hero ---- */
.hero {
  background: var(--hero-bg);
}

.hero .container {
  padding-top: 72px;
  padding-bottom: 72px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  color: var(--navy);
  max-width: 14ch;
}

.hero p {
  max-width: 52ch;
  font-size: 18px;
  color: var(--navy-soft);
  margin-bottom: 28px;
}

.hero-stat {
  font-weight: 800;
  color: var(--accent-dark);
}

/* ---- Article cards (home page) ---- */
.articles { padding: 72px 0; }

.section-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 36px;
}

.card {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 0 var(--border);
  transition: transform .18s ease, box-shadow .18s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(23, 26, 52, .12);
}

.card a { display: block; color: inherit; }

.card-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--hero-bg-soft);
}

.card-body { padding: 28px; }

.card-body h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.card-body p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 16px;
}

.read-more {
  font-weight: 700;
  font-size: 14px;
  color: var(--accent-dark);
}

/* ---- Image placeholder (used until real photos are added) ---- */
.img-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: repeating-linear-gradient(
    45deg,
    var(--hero-bg-soft),
    var(--hero-bg-soft) 12px,
    var(--hero-bg) 12px,
    var(--hero-bg) 24px
  );
  border: 1px dashed var(--border);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy-soft);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  padding: 16px;
}

/* ---- Article page ---- */
.article-hero {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: 20px;
  margin-bottom: 40px;
}

.article-header { padding: 56px 0 0; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 14px;
}

.article-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  max-width: 20ch;
}

.article-lead {
  font-size: 18px;
  color: var(--navy-soft);
  max-width: 68ch;
  margin-bottom: 8px;
}

.article-body { padding: 24px 0 80px; }

.article-body h2 {
  font-size: 24px;
  margin-top: 44px;
  margin-bottom: 16px;
}

.article-body p {
  margin-bottom: 20px;
  color: var(--navy-soft);
  font-size: 16px;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--hero-bg-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--navy);
}

.back-link {
  display: block;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 14px;
  color: var(--navy-soft);
}

.back-link:hover { color: var(--accent-dark); }

/* ---- Footer ---- */
.site-footer {
  background: var(--navy);
  color: var(--hero-bg-soft);
  padding: 56px 0 28px;
  margin-top: 40px;
}

.site-footer h3 {
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent);
  margin-bottom: 14px;
}

.site-footer p {
  margin: 0 0 6px;
  font-size: 15px;
  color: #c9cfe0;
}

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

.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: 13px;
  color: #8b90ab;
}