/* LLUCAMPS — landing page. Static; no build step. */

:root {
  --bg: #0f1d12;
  --bg-elev: #15291a;
  --bg-card: #1b3320;
  --text: #f0f4ee;
  --text-muted: #9eb2a3;
  --accent: #6dbb74;
  --accent-soft: #6dbb7430;
  --border: #294a31;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin: 0 0 1.5rem;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 700;
}

.brand-mark {
  color: var(--accent);
  font-size: 1.6rem;
  line-height: 1;
}

.brand-name {
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* ---------- hero ---------- */

.hero {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--accent-soft) 0%, transparent 60%),
    var(--bg);
}

.hero-body {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4.5rem) clamp(1rem, 4vw, 2.5rem) clamp(3rem, 8vw, 6rem);
  text-align: center;
}

.hero-accent {
  color: var(--accent);
}

.hero-sub {
  max-width: 36rem;
  margin: 0 auto 2rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.cta {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.12s ease;
}

.cta:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.cta-primary {
  background: var(--accent);
  color: #0a1308;
}

.cta-primary:hover {
  background: #82c98a;
}

.cta-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.cta-secondary:hover {
  background: var(--bg-elev);
}

.hero-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---------- sections ---------- */

section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) clamp(1rem, 4vw, 2.5rem);
}

section + section {
  border-top: 1px solid var(--border);
}

/* ---------- features grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
}

.card-icon {
  color: var(--accent);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.card p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- data section ---------- */

.source-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 0.5rem;
}

.source-list li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: var(--text-muted);
}

.source-list b {
  color: var(--text);
}

.data-note {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.95rem;
}

/* ---------- privacy section ---------- */

.privacy-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.privacy-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-muted);
}

.privacy-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  position: absolute;
  left: 0;
}

.privacy-list em {
  color: var(--text);
  font-style: normal;
  font-weight: 600;
}

/* ---------- download ---------- */

.download {
  text-align: center;
}

/* ---------- footer ---------- */

.footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2.5rem) 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer p {
  max-width: 40rem;
  margin: 0 0 1rem;
}

.footer nav a {
  color: var(--text-muted);
}

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

/* ---------- markdown-style content pages (privacy, credits) ---------- */

.content {
  max-width: 48rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2.5rem) 5rem;
}

.content h1 {
  font-size: 2.2rem;
}

.content h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
}

.content h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
}

.content p, .content li {
  color: var(--text-muted);
}

.content strong, .content b {
  color: var(--text);
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.content th, .content td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.content th {
  color: var(--text);
  font-weight: 700;
}

.content code {
  background: var(--bg-card);
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  color: var(--accent);
}

.content .updated {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}