/* Flash Riser: Modern Naval Service. Console palette: deep navy, ochre, signal green. No external resources. */
:root {
  --bg: #0b1622;
  --panel: #111f2e;
  --line: #1f3347;
  --text: #d6dee6;
  --dim: #8a9aab;
  --ochre: #e0a040;
  --green: #4ccf86;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ochre); }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }

/* Hero */
.hero {
  padding: 64px 0 48px;
  background:
    radial-gradient(ellipse at 50% -20%, rgba(76, 207, 134, 0.10), transparent 60%),
    linear-gradient(180deg, #0e1d2c 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.kicker {
  font: 600 13px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 14px;
}
h1 {
  font: 700 clamp(40px, 7vw, 76px)/1.02 var(--sans);
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  color: #fff;
  text-transform: uppercase;
}
h1 span {
  display: block;
  font: 600 clamp(16px, 2.4vw, 24px)/1.3 var(--mono);
  letter-spacing: 0.12em;
  color: var(--ochre);
  margin-top: 10px;
}
.lead { max-width: 760px; font-size: 19px; color: var(--text); margin: 0 0 22px; }
.release { font: 600 15px/1.4 var(--mono); color: var(--dim); margin: 0 0 32px; letter-spacing: 0.04em; }
.release span {
  display: inline-block;
  padding: 6px 12px;
  margin-right: 8px;
  border: 1px solid var(--ochre);
  color: var(--ochre);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.hero-shot img { border: 1px solid var(--line); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5); }

/* Sections */
main section.wrap { padding-top: 56px; padding-bottom: 56px; }
h2 {
  font: 600 14px/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ochre);
  margin: 0 0 26px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
h3 { font-size: 18px; margin: 0 0 8px; color: #fff; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.grid article { background: var(--panel); border: 1px solid var(--line); padding: 22px; }
.grid p { margin: 0; color: var(--dim); font-size: 16px; }

.scenarios .intro { color: var(--dim); max-width: 760px; margin: 0 0 18px; }
.scenarios ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.scenarios li { background: var(--panel); border-left: 3px solid var(--green); padding: 12px 16px; color: var(--dim); }
.scenarios li b { display: block; color: #fff; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 14px; }

.thumbs { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.shot { display: block; text-decoration: none; position: relative; }
.thumbs img { border: 1px solid var(--line); transition: border-color 0.15s, transform 0.15s; }
.thumbs .shot:hover img, .thumbs .shot:focus img { border-color: var(--ochre); transform: translateY(-2px); }
.thumbs span { display: block; padding: 8px 2px 0; font: 13px/1.3 var(--mono); color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; }

.cta { text-align: center; }
.cta h2 { border: 0; font-size: clamp(26px, 4vw, 38px); letter-spacing: 0.08em; color: #fff; }
.cta p { max-width: 680px; margin: 0 auto; color: var(--dim); }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--dim); font-size: 14px; }
footer p { margin: 0 0 6px; }
footer .small { font-size: 12px; }

/* Lightbox: an element shown while its id is the URL fragment */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(5, 10, 16, 0.94);
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.lightbox:target { display: flex; }
.lightbox img { max-height: 92vh; width: auto; border: 1px solid var(--line); position: relative; z-index: 1; pointer-events: none; }
.lightbox .close { position: absolute; inset: 0; z-index: 0; cursor: zoom-out; }
.lightbox .close::after {
  content: "\00d7";
  position: absolute;
  top: 10px;
  right: 22px;
  font: 40px/1 var(--sans);
  color: var(--text);
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { padding: 40px 0 32px; }
  .lead { font-size: 17px; }
  main section.wrap { padding-top: 40px; padding-bottom: 40px; }
  .thumbs, .grid { grid-template-columns: 1fr; }
}