/* TSI Sp. z o.o. — tsi.katowice.pl
   Static rebuild. Plain CSS, no framework. */

:root {
  --blue:      #0a4f93;
  --blue-dark: #073763;
  --blue-light:#eaf1f8;
  --accent:    #1a73c2;
  --ink:       #1d2b36;
  --muted:     #5b6b78;
  --line:      #d9e2ea;
  --bg:        #f5f8fb;
  --white:     #ffffff;
  --radius:    8px;
  --shadow:    0 1px 3px rgba(10,44,80,.08), 0 4px 16px rgba(10,44,80,.06);
  --wrap:      1140px;
  --font: "Segoe UI", Roboto, "Open Sans", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;   /* sticky footer: short pages (e.g. Kontakt) push it to the bottom */
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.site-header {
  background: var(--white);
  border-bottom: 3px solid var(--blue);
  box-shadow: var(--shadow);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 8px 24px; padding-top: 12px; padding-bottom: 12px;
}
.brand { display: flex; align-items: baseline; gap: 10px; line-height: 1; }
.brand .mark {
  font-size: 34px; font-weight: 800; letter-spacing: 1px;
  color: var(--blue); text-decoration: none;
}
.brand .sub { font-size: 13px; color: var(--muted); font-weight: 600; letter-spacing: .3px; }
.brand a { text-decoration: none; }

/* ---------- Nav ---------- */
.main-nav { margin-left: auto; }
.main-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 4px;
}
.main-nav a {
  display: block; padding: 8px 14px; border-radius: 6px;
  color: var(--ink); font-weight: 600; font-size: 15.5px;
  text-decoration: none; white-space: nowrap;
}
.main-nav a:hover { background: var(--blue-light); color: var(--blue-dark); }
.main-nav a.active { background: var(--blue); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  color: #fff;
}
.hero .wrap { padding-top: 48px; padding-bottom: 48px; }
.hero h1 { margin: 0 0 10px; font-size: 2.1rem; line-height: 1.2; }
.hero p { margin: 0 0 20px; font-size: 1.15rem; color: #dbe8f5; max-width: 60ch; }
.hero .cta {
  display: inline-block; background: #fff; color: var(--blue-dark);
  font-weight: 700; padding: 11px 22px; border-radius: 6px;
}
.hero .cta:hover { background: #eaf1f8; text-decoration: none; }

/* ---------- Layout ---------- */
.layout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; padding: 34px 0 10px; }
.content { min-width: 0; }
.content.full { grid-column: 1 / -1; }
main { padding-bottom: 40px; flex: 1 0 auto; }   /* grow to fill so footer hugs the bottom */

/* ---------- Cards / content ---------- */
.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px 32px; margin-bottom: 24px;
}
.card h1 { margin-top: 0; color: var(--blue-dark); font-size: 1.8rem; line-height: 1.2; }
.card h2 { color: var(--blue-dark); font-size: 1.3rem; margin: 1.6em 0 .5em; }
.card h3 { color: var(--blue-dark); font-size: 1.08rem; margin: 1.4em 0 .4em; }
.card > *:first-child { margin-top: 0; }
.card p { margin: 0 0 1em; }
.card ul { padding-left: 1.25em; }
.card li { margin: .25em 0; }
.lead { font-size: 1.12rem; color: var(--muted); }
figure { margin: 18px 0; }
figure img { border-radius: 6px; border: 1px solid var(--line); }
figure.center { text-align: center; }
figcaption { font-size: .9rem; color: var(--muted); margin-top: 6px; }

/* breadcrumb */
.breadcrumb { font-size: .9rem; color: var(--muted); padding: 14px 0 0; }
.breadcrumb a { color: var(--muted); }

/* PDF / placeholder links */
.doc-link {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue-light); border: 1px solid #cfe0f0;
  color: var(--blue-dark); font-weight: 600; font-size: .95rem;
  padding: 8px 14px; border-radius: 6px; margin: 4px 8px 4px 0;
}
.doc-link::before { content: "\1F4C4"; }
.doc-link.pending { opacity: .8; }
.doc-note { font-size: .82rem; color: var(--muted); display: block; margin-top: 6px; }

/* ---------- Sidebar ---------- */
.sidebar { align-self: start; position: sticky; top: 90px; }
.sidebar .menu {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  margin-bottom: 20px; overflow: hidden;
}
.sidebar .menu h4 {
  margin: 0; background: var(--blue); color: #fff;
  font-size: .95rem; letter-spacing: .4px; text-transform: uppercase;
  padding: 12px 16px;
}
.sidebar .menu ul { list-style: none; margin: 0; padding: 6px; }
.sidebar .menu a {
  display: block; padding: 9px 12px; border-radius: 5px;
  color: var(--ink); font-weight: 600; font-size: .96rem;
}
.sidebar .menu a:hover { background: var(--blue-light); text-decoration: none; }
.sidebar .menu a.active { background: var(--blue-light); color: var(--blue-dark); }

/* ---------- Home grids ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.tile {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px 24px; display: flex; flex-direction: column;
}
.tile h3 { margin: 0 0 8px; color: var(--blue-dark); }
.tile p { margin: 0 0 14px; color: var(--muted); font-size: .98rem; }
.tile a.more { margin-top: auto; font-weight: 700; }
.section-title { color: var(--blue-dark); font-size: 1.5rem; margin: 8px 0 18px; }

/* contact */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.contact-grid .item strong { display: block; color: var(--blue-dark); font-size: .85rem;
  text-transform: uppercase; letter-spacing: .4px; margin-bottom: 3px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--blue-dark); color: #cbdcec; margin-top: 30px;
  font-size: .95rem;
}
.site-footer .wrap { padding: 34px 20px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 28px; }
.site-footer h5 { color: #fff; margin: 0 0 10px; font-size: 1rem; }
.site-footer a { color: #bcd6ee; }
.site-footer .eco { max-width: 220px; background:#fff; padding:10px 14px; border-radius:6px; }
.footer-bottom { background: #052a4d; color: #8fb0cd; font-size: .85rem; }
.footer-bottom .wrap { padding: 14px 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; order: 2; }
  .site-header .wrap { padding-bottom: 8px; }
  .main-nav { margin-left: 0; width: 100%; }
  .main-nav ul { justify-content: flex-start; }
  .hero h1 { font-size: 1.7rem; }
  .card { padding: 22px 20px; }
}