:root {
  --bg: #071018;
  --bg-soft: #0d1821;
  --panel: rgba(9, 17, 24, 0.82);
  --text: #f4efe4;
  --muted: #c4c0b7;
  --gold: #d6ad59;
  --gold-soft: rgba(214, 173, 89, 0.24);
  --line: rgba(214, 173, 89, 0.28);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }

.hero {
  min-height: 100vh;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(3, 8, 12, 0.55), rgba(3, 8, 12, 0.73)),
    url("assets/pracownia-badawcza.png") center/cover no-repeat;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 25%, rgba(0,0,0,.45) 100%);
  pointer-events: none;
}
.topbar {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px clamp(22px, 5vw, 70px);
  background: linear-gradient(to bottom, rgba(0,0,0,.6), transparent);
}
.brand { text-transform: uppercase; letter-spacing: .14em; font-size: .84rem; }
.nav-links { display: flex; gap: 28px; font-size: .94rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--gold); }
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
  padding: 120px 24px 80px;
  text-align: center;
  text-shadow: 0 3px 24px rgba(0,0,0,.95);
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font: 600 .78rem/1.4 Arial, sans-serif;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.15; font-weight: 500; }
h1 { margin: 0; font-size: clamp(3rem, 8vw, 6.6rem); }
.hero-lead {
  max-width: 760px;
  margin: 28px auto 36px;
  color: #f3eee5;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}
.button {
  display: inline-block;
  padding: 14px 28px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  background: rgba(0,0,0,.34);
  color: var(--text);
  font-family: Arial, sans-serif;
  letter-spacing: .04em;
  transition: .25s ease;
}
.button:hover { background: var(--gold); color: #171109; transform: translateY(-2px); }
.scroll-hint {
  position: absolute;
  z-index: 3;
  bottom: 24px;
  font-size: 1.7rem;
  color: var(--gold);
  animation: pulse 1.8s infinite;
}
@keyframes pulse { 50% { transform: translateY(8px); opacity: .55; } }

.section { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 100px 0; }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h2, .notice-box h2 { margin: 0; font-size: clamp(2.1rem, 5vw, 4rem); }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; color: var(--muted); font-size: 1.08rem; }
.method-band {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  padding: 32px 24px;
  border-block: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text);
  font-family: Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: .09em;
  font-size: .88rem;
}
.method-band i { color: var(--gold); font-style: normal; }
.project-card {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0,0,0,.35);
}
.project-image {
  min-height: 380px;
  background:
    linear-gradient(90deg, transparent 65%, rgba(8,15,21,.88)),
    url("projekty/cywilizacja-indusu/indus.jpg") center/cover no-repeat;
}
.project-content { align-self: center; padding: clamp(34px, 6vw, 72px); }
.status {
  display: inline-block;
  margin: 0 0 18px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--gold);
  font: 700 .72rem Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: .13em;
}
.project-content h3 { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 3.5rem); }
.project-content p { color: var(--muted); }
.text-link { display: inline-block; margin-top: 18px; color: var(--gold); font-family: Arial, sans-serif; }
.text-link span { display: inline-block; transition: transform .2s; }
.text-link:hover span { transform: translateX(6px); }
.notice { padding-top: 30px; }
.notice-box {
  padding: clamp(34px, 6vw, 70px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(214,173,89,.10), rgba(9,17,24,.85));
}
.notice-box p:last-child { max-width: 900px; margin-bottom: 0; color: var(--muted); }
footer {
  padding: 46px 20px;
  text-align: center;
  border-top: 1px solid var(--line);
  background: #050b10;
}
footer p { margin: 4px 0; }
.footer-note { color: var(--muted); font-size: .9rem; }

@media (max-width: 820px) {
  .topbar { align-items: flex-start; gap: 20px; }
  .nav-links { display: none; }
  .intro-grid, .project-card { grid-template-columns: 1fr; }
  .project-image { min-height: 340px; background: linear-gradient(180deg, transparent 60%, rgba(8,15,21,.9)), url("projekty/cywilizacja-indusu/indus.jpg") center/cover no-repeat; }
}
@media (max-width: 540px) {
  .section { width: min(100% - 28px, var(--max)); padding: 72px 0; }
  h1 { font-size: 3rem; }
  .method-band { gap: 10px; }
  .method-band i { display: none; }
}
.hero-copy { max-width: 760px; margin: -14px auto 34px; color: var(--muted); font-size: 1rem; }
.section-copy { max-width: 860px; color: var(--muted); }
.area-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.area-card { display:flex; flex-direction:column; min-height:330px; padding:32px; border:1px solid var(--line); border-radius:24px; background:linear-gradient(145deg,rgba(13,24,33,.96),rgba(7,16,24,.88)); box-shadow:0 18px 50px rgba(0,0,0,.22); transition:.25s ease; }
.area-card:hover { transform:translateY(-5px); border-color:rgba(214,173,89,.62); box-shadow:0 24px 60px rgba(0,0,0,.32); }
.area-card.active { background:linear-gradient(145deg,rgba(214,173,89,.12),rgba(7,16,24,.94)); }
.area-icon { font-size:2rem; margin-bottom:22px; }
.area-source { margin:0 0 8px; color:var(--gold); font:700 .72rem Arial,sans-serif; letter-spacing:.13em; text-transform:uppercase; }
.area-card h3 { margin:0 0 14px; font-size:2rem; }
.area-card p:not(.area-source) { margin:0 0 24px; color:var(--muted); }
.area-link { margin-top:auto; color:var(--gold); font-family:Arial,sans-serif; font-size:.92rem; }
@media (max-width:900px){.area-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.area-grid{grid-template-columns:1fr}.area-card{min-height:auto}}