/* TerraScope — habitability research atlas */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0a0a0a;
  --bg-2: #141414;
  --bg-card: #1a1a1a;
  --border: #262626;
  --border-strong: #333;
  --text: #e0e0e0;
  --text-dim: #9aa0a6;
  --text-muted: #666;
  --green: #4ade80;
  --green-dim: #22c55e;
  --blue: #3b82f6;
  --purple: #a855f7;
  --amber: #f59e0b;
  --red: #ef4444;
  --gold: #b8860b;
}
html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-dim); }

/* layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* nav */
nav.top {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
nav.top .container { display: flex; align-items: center; gap: 32px; }
nav.top .logo {
  font-weight: 800; font-size: 1.15rem; color: #fff;
  letter-spacing: 0.02em;
}
nav.top .logo span { color: var(--green); }
nav.top .links { display: flex; gap: 24px; margin-left: auto; align-items: center; }
nav.top .links a { color: var(--text-dim); font-size: 0.9rem; }
nav.top .links a:hover { color: var(--text); }
nav.top .links .cta {
  background: var(--green); color: #052e16; padding: 8px 18px;
  border-radius: 4px; font-weight: 600;
}
nav.top .links .cta:hover { background: var(--green-dim); color: #052e16; }

/* hero */
.hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(ellipse at top, rgba(74,222,128,0.05) 0%, transparent 60%);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1; color: #fff;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--green); }
.hero .lead {
  font-size: 1.15rem;
  color: var(--text-dim); max-width: 720px;
  margin-bottom: 32px;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 5px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s;
  border: none;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--green); color: #052e16; }
.btn-primary:hover { background: var(--green-dim); color: #052e16; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

/* sections */
section { padding: 80px 0; border-bottom: 1px solid var(--border); }
section h2 {
  font-size: 2rem; font-weight: 700; color: #fff;
  margin-bottom: 12px;
}
section h2 span { color: var(--green); }
section .lede {
  color: var(--text-dim); font-size: 1.05rem;
  margin-bottom: 48px; max-width: 700px;
}

/* metric grid */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.metric {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 24px;
  transition: border 0.15s, transform 0.15s;
}
.metric:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.metric .icon {
  width: 36px; height: 36px;
  border-radius: 8px; background: rgba(74,222,128,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--green); font-size: 1.2rem; margin-bottom: 14px;
}
.metric h3 { font-size: 1.05rem; color: #fff; margin-bottom: 8px; }
.metric p { color: var(--text-dim); font-size: 0.92rem; }

/* sample-tables */
.sample-table {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden; margin: 24px 0;
}
.sample-table table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.sample-table th {
  background: #262626; color: var(--green); text-align: left;
  padding: 10px 14px; border-bottom: 2px solid #444;
  font-weight: 600; font-size: 0.78rem; text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sample-table td {
  padding: 9px 14px; border-bottom: 1px solid #2a2a2a;
  color: var(--text);
}
.sample-table tr:last-child td { border-bottom: none; }
.sample-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.sample-table .pct-good { color: var(--green); font-weight: 700; }
.sample-table .pct-mid { color: var(--amber); font-weight: 600; }

/* pricing */
.pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.tier {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 32px 24px;
  position: relative;
  transition: border 0.15s, transform 0.15s;
}
.tier:hover { border-color: var(--border-strong); }
.tier.featured {
  border-color: var(--green); border-width: 2px;
}
.tier.featured::before {
  content: "MOST POPULAR";
  position: absolute; top: -10px; left: 24px;
  background: var(--green); color: #052e16;
  padding: 3px 10px; font-size: 0.65rem; border-radius: 3px;
  font-weight: 700; letter-spacing: 0.08em;
}
.tier .name { color: var(--green); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }
.tier .price { font-size: 2.4rem; color: #fff; font-weight: 800; margin: 8px 0; }
.tier .price small { font-size: 0.9rem; color: var(--text-dim); font-weight: 400; }
.tier .desc { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 24px; }
.tier ul { list-style: none; margin-bottom: 28px; }
.tier li {
  color: var(--text); font-size: 0.9rem; padding: 6px 0; padding-left: 24px;
  position: relative;
}
.tier li::before {
  content: "✓"; color: var(--green); position: absolute; left: 0;
  font-weight: 700;
}
.tier .btn { width: 100%; text-align: center; }

/* who is it for */
.audience {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.audience .card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 28px 24px;
}
.audience .card h3 { color: #fff; margin-bottom: 10px; font-size: 1.1rem; }
.audience .card p { color: var(--text-dim); font-size: 0.92rem; }

/* faq */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 6px; padding: 16px 20px;
}
.faq summary {
  cursor: pointer; font-weight: 600; color: #fff; font-size: 0.98rem;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+"; color: var(--green); margin-right: 12px; font-weight: 700; }
.faq details[open] summary::before { content: "−"; }
.faq p { margin-top: 12px; color: var(--text-dim); font-size: 0.92rem; }

/* footer */
footer {
  padding: 50px 0 30px;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
}
footer .grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
@media (max-width: 700px) {
  footer .grid { grid-template-columns: 1fr 1fr; }
}
footer h4 {
  color: #fff; font-size: 0.85rem; letter-spacing: 0.06em;
  text-transform: uppercase; margin-bottom: 14px;
}
footer ul { list-style: none; }
footer li { padding: 4px 0; }
footer li a { color: var(--text-dim); font-size: 0.88rem; }
footer li a:hover { color: var(--text); }
footer .legal {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex; justify-content: space-between;
  color: var(--text-muted); font-size: 0.82rem;
  flex-wrap: wrap; gap: 12px;
}

/* doc page (terms / privacy / refunds) */
.doc { padding: 60px 0; }
.doc h1 { font-size: 2rem; color: #fff; margin-bottom: 12px; }
.doc .updated { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 40px; }
.doc h2 {
  font-size: 1.2rem; color: var(--green); margin-top: 36px; margin-bottom: 12px;
  font-weight: 700;
}
.doc p, .doc li { color: var(--text); font-size: 0.95rem; margin-bottom: 12px; }
.doc ul { padding-left: 22px; margin-bottom: 16px; }

/* login form */
.auth {
  min-height: calc(100vh - 80px);
  display: flex; align-items: center; justify-content: center; padding: 40px 20px;
}
.auth .card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 36px 32px;
  width: 100%; max-width: 400px;
}
.auth h1 { color: #fff; margin-bottom: 8px; font-size: 1.5rem; }
.auth .sub { color: var(--text-dim); margin-bottom: 24px; font-size: 0.92rem; }
.auth label { display: block; color: var(--text); font-size: 0.85rem; margin-bottom: 6px; margin-top: 14px; }
.auth input {
  width: 100%; background: #0a0a0a; border: 1px solid var(--border-strong);
  color: #fff; padding: 10px 12px; border-radius: 5px; font-size: 0.95rem;
}
.auth input:focus { border-color: var(--green); outline: none; }
.auth .btn { width: 100%; margin-top: 20px; }
.auth .links { margin-top: 18px; text-align: center; font-size: 0.85rem; color: var(--text-dim); }
.auth .links a { margin: 0 8px; }

/* smooth scroll for anchor nav */
html { scroll-behavior: smooth; }

/* fullscreen blackout modal */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 9999;
  padding: 20px;
}
.modal-backdrop.open { display: flex; animation: modalIn 0.18s ease-out; }
@keyframes modalIn { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 36px 36px 28px;
  width: 100%; max-width: 480px;
  position: relative;
  box-shadow: 0 30px 80px rgba(0,0,0,0.7), 0 0 0 1px rgba(74,222,128,0.15);
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px;
  background: transparent; border: 1px solid var(--border-strong);
  color: var(--text-dim); border-radius: 50%;
  font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  line-height: 1;
}
.modal-close:hover { color: #fff; border-color: var(--green); }
.modal-card .price-stamp {
  display: inline-block;
  background: rgba(74,222,128,0.1);
  color: var(--green);
  font-size: 1.4rem; font-weight: 800;
  padding: 6px 14px; border-radius: 4px;
  margin-bottom: 14px;
  border: 1px solid rgba(74,222,128,0.3);
}
.modal-card .price-stamp span { font-size: 0.75rem; color: var(--text-dim); font-weight: 500; margin-left: 4px; }
.modal-card h2 {
  color: #fff; font-size: 1.55rem; font-weight: 700; margin-bottom: 8px;
}
.modal-sub {
  color: var(--text-dim); font-size: 0.92rem; margin-bottom: 20px; line-height: 1.55;
}
.modal-features {
  list-style: none; padding: 0; margin: 0 0 24px 0;
}
.modal-features li {
  color: var(--text); font-size: 0.88rem; padding: 5px 0 5px 22px;
  position: relative; line-height: 1.5;
}
.modal-features li::before {
  content: "✓"; color: var(--green); position: absolute; left: 0;
  font-weight: 700;
}
.modal-form label {
  display: block; color: var(--text); font-size: 0.85rem; margin-bottom: 6px;
}
.modal-form input {
  width: 100%; background: #0a0a0a; border: 1px solid var(--border-strong);
  color: #fff; padding: 11px 14px; border-radius: 5px; font-size: 0.95rem;
  margin-bottom: 14px;
}
.modal-form input:focus { border-color: var(--green); outline: none; }
.modal-submit { width: 100%; }
.modal-fine {
  font-size: 0.78rem; color: var(--text-muted);
  margin-top: 14px; text-align: center;
}

/* preview placeholder for embedded map */
.map-preview {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px;
  text-align: center; color: var(--text-dim);
  margin: 32px 0;
}
.map-preview .img-placeholder {
  background: linear-gradient(135deg, rgba(74,222,128,0.08), rgba(168,85,247,0.06));
  border: 1px dashed var(--border-strong);
  border-radius: 6px; height: 360px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.85rem;
  margin-bottom: 14px;
}