/* TX Software Applications: plain static site. No scripts, no cookies, no outside fonts or images. Deep charcoal, slate and white, with one restrained electric-blue accent. */
:root { --bg: #0E1115; --surface: #161B22; --surface2: #1D242D; --text: #EEF1F5; --muted: #98A4B3; --accent: #2F7DF6; --accent-text: #6AA5FF; --line: rgba(160, 175, 195, 0.16); color-scheme: dark; }
@media (prefers-color-scheme: light) { :root { --bg: #F6F7F9; --surface: #FFFFFF; --surface2: #EEF1F5; --text: #14181E; --muted: #55606E; --accent: #1F6BE6; --accent-text: #1459C7; --line: rgba(20, 30, 45, 0.13); color-scheme: light; } }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.wrap { max-width: 62rem; margin: 0 auto; padding: 1.25rem max(1.25rem, env(safe-area-inset-right)) 3rem max(1.25rem, env(safe-area-inset-left)); }
header { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; align-items: center; justify-content: space-between; padding: 0.5rem 0 1.25rem; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.1rem; letter-spacing: -0.01em; }
.mark { width: 0.9rem; height: 0.9rem; border-radius: 0.2rem; background: var(--accent); display: inline-block; }
nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
nav a { color: var(--muted); text-decoration: none; font-weight: 600; padding: 0.25rem 0; border-bottom: 2px solid transparent; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }
main { padding-top: 1rem; }
h1 { font-size: clamp(2.1rem, 6vw, 3.4rem); line-height: 1.08; margin: 1.5rem 0 0.75rem; letter-spacing: -0.03em; text-wrap: balance; }
h2 { font-size: 1.5rem; line-height: 1.25; margin: 3rem 0 0.75rem; letter-spacing: -0.015em; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 0.25rem; }
p, li { max-width: 42rem; }
.lead { font-size: 1.25rem; line-height: 1.45; color: var(--muted); }
.lead.small { font-size: 1.1rem; margin: 0.25rem 0 0.75rem; }
.eyebrow { color: var(--accent-text); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.8rem; margin: 3rem 0 0; }
.hero { padding-bottom: 1rem; }
.hero h1 { margin-top: 0.5rem; }
.muted { color: var(--muted); font-size: 0.95rem; }
.status { color: var(--accent-text); font-weight: 600; }
ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
a { color: var(--accent-text); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0 0; }
.button { display: inline-block; padding: 0.7rem 1.25rem; border-radius: 10px; background: var(--accent); color: #fff; font-weight: 600; text-decoration: none; border: 1px solid var(--accent); }
.button:hover { filter: brightness(1.1); }
.button.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.button.ghost:hover { border-color: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr)); gap: 1rem; margin-top: 1rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 1.25rem 1.5rem; }
.card h3 { margin-top: 0; }
.feature { display: flex; gap: 1.5rem; align-items: flex-start; margin-top: 1rem; }
.feature h2 { margin-top: 0; }
.feature h3:first-child { margin-top: 0; }
.app-icon { flex: none; width: 96px; height: 96px; border-radius: 22%; border: 1px solid var(--line); }
.values li strong { color: var(--text); }
.facts { display: flex; gap: 2rem; margin: 1.25rem 0 0; }
.facts dt { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.facts dd { margin: 0; font-weight: 600; }
.page h1 { margin-top: 1.75rem; }
footer { margin-top: 4rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.92rem; }
footer p { margin: 0.25rem 0; max-width: none; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }
a:focus-visible, .button:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; border-radius: 6px; }
@media (max-width: 36rem) { .feature { flex-direction: column; } .facts { flex-direction: column; gap: 0.75rem; } }