/* KATR Software company website: one stylesheet for every top-level page.
   Structure follows the Benchwork Ballistics site; palette is a neutral slate/teal so each app keeps its own identity. */
:root {
  color-scheme: light;
  --bg: #f3f6f8;
  --card: #ffffff;
  --text: #16212b;
  --muted: #54626f;
  --accent: #0f6f7c;
  --accent2: #5cc4d0;
  --dark: #17242f;
  --border: #dbe3e9;
  --tint: #eaf3f5;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px 80px; }
.wrap.narrow { max-width: 820px; }

/* Top navigation: sticky, pure CSS. On narrow screens the links take a second row and scroll sideways. */
html { scroll-padding-top: 72px; }
.topnav { position: sticky; top: 0; z-index: 20; background: var(--dark); border-bottom: 1px solid rgba(255,255,255,0.12); }
.topnav-inner { max-width: 960px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; gap: 18px; }
.topnav .brand {
  flex-shrink: 0; padding: 10px 0; color: #fff; text-decoration: none;
  font-weight: 800; font-size: 1.15rem; letter-spacing: 0.08em;
}
.topnav .brand span { color: var(--accent2); font-weight: 600; letter-spacing: 0.02em; font-size: 0.85rem; margin-left: 6px; }
.topnav .brand img { height: 30px; width: auto; vertical-align: middle; margin-right: 10px; }
.topnav nav { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.topnav nav::-webkit-scrollbar { display: none; }
.topnav nav a {
  display: block; padding: 14px 12px 11px; color: #c6d6df; text-decoration: none;
  font-weight: 600; font-size: 0.92rem; border-bottom: 3px solid transparent;
}
.topnav nav a:hover { color: #fff; }
.topnav nav a[aria-current="page"] { color: #fff; border-bottom-color: var(--accent2); }
@media (max-width: 640px) {
  html { scroll-padding-top: 108px; }
  .topnav-inner { flex-wrap: wrap; gap: 0; }
  .topnav .brand { padding: 9px 0 2px; }
  .topnav nav { width: 100%; margin-left: 0; }
  .topnav nav a { padding: 9px 8px 8px; font-size: 0.85rem; }
}

/* Hero */
.hero { background: linear-gradient(135deg, var(--dark), var(--accent) 85%); color: #fff; padding: 64px 20px 72px; text-align: center; }
.hero.small { padding: 40px 20px 44px; margin-bottom: 40px; }
.hero h1 { font-size: 2.5rem; margin: 0 0 12px; line-height: 1.2; }
.hero.small h1 { font-size: 1.8rem; margin-bottom: 8px; }
.hero p { margin: 0 auto; max-width: 620px; color: #dcecf0; }
.hero p.tagline { font-size: 1.15rem; }
.hero.small p { font-size: 0.98rem; }
.hero .cta-row { margin-top: 28px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; background: #fff; color: var(--accent); font-weight: 700; text-decoration: none;
  padding: 12px 26px; border-radius: 999px; border: 2px solid #fff;
}
.btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.55); }
.btn:hover { border-color: var(--accent2); }
.btn.solid { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Sections and cards */
section { margin-top: 56px; }
section > h2 { font-size: 1.5rem; text-align: center; margin: 0 0 12px; }
section > p.lead { text-align: center; color: var(--muted); max-width: 640px; margin: 0 auto 32px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 22px; }
.feature h3 { margin: 0 0 8px; font-size: 1.05rem; color: var(--accent); }
.feature p { margin: 0; font-size: 0.95rem; color: var(--muted); }
.feature ul { margin: 8px 0 0; padding-left: 20px; font-size: 0.95rem; color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 28px 32px; margin-bottom: 24px; }
.card h2 { font-size: 1.25rem; margin: 0 0 8px; color: var(--accent); text-align: left; }
.card p, .card li { font-size: 0.98rem; }
.card p:last-child { margin-bottom: 0; }
.notice {
  margin-top: 40px; padding: 18px 22px; background: var(--card); border: 1px solid var(--border);
  border-left: 5px solid var(--accent); border-radius: 8px; color: var(--muted); font-size: 0.95rem;
}
.contact-box { background: var(--tint); border: 1px solid var(--border); border-radius: 10px; padding: 18px 22px; text-align: center; }
.contact-box a.email { font-size: 1.3rem; font-weight: 700; }

/* App cards */
.apps { display: grid; gap: 20px; }
.app {
  display: grid; grid-template-columns: 96px 1fr; gap: 22px; align-items: start;
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 24px;
}
.app img.icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 6px 18px rgba(23,36,47,0.22); }
.app h3 { margin: 0 0 2px; font-size: 1.3rem; }
.app h3 a { color: var(--text); text-decoration: none; }
.app h3 a:hover { color: var(--accent); }
.app .kind { margin: 0 0 8px; color: var(--accent); font-weight: 600; font-size: 0.9rem; }
.app p { margin: 0 0 10px; font-size: 0.97rem; color: var(--muted); }
.app .links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.92rem; font-weight: 600; }
.app .links a { text-decoration: none; }
.app .links a:hover { text-decoration: underline; }
@media (max-width: 560px) {
  .app { grid-template-columns: 1fr; text-align: left; }
  .app img.icon { width: 72px; height: 72px; border-radius: 17px; }
}
.shots { display: flex; gap: 16px; overflow-x: auto; padding: 4px 4px 16px; scroll-snap-type: x mandatory; }
.shots img {
  height: 400px; max-width: 90vw; border-radius: 18px; border: 1px solid var(--border);
  box-shadow: 0 6px 20px rgba(23,36,47,0.16); scroll-snap-align: start; flex-shrink: 0;
}

/* Tech chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chips span {
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  font-weight: 600; font-size: 0.9rem; padding: 8px 16px; border-radius: 999px;
}

/* Footer */
footer { margin-top: 56px; text-align: center; color: var(--muted); font-size: 0.9rem; }
footer nav { margin-bottom: 12px; }
footer nav a { text-decoration: none; margin: 0 10px; font-weight: 600; }
footer nav a:hover { text-decoration: underline; }
footer p { margin: 4px 0; }

/* Google Play link and "coming soon" tag on app cards */
.app .links .play {
  background: var(--accent); color: #fff; padding: 4px 14px; border-radius: 999px; font-size: 0.85rem;
}
.app .links a.play:hover { text-decoration: none; background: var(--dark); }
.app .links .play.soon { background: var(--tint); color: var(--muted); border: 1px solid var(--border); }