:root {
  --bg: #030303;
  --panel: rgba(255,255,255,0.055);
  --panel-2: rgba(255,255,255,0.035);
  --line: rgba(255,255,255,0.14);
  --text: #f7f7f7;
  --muted: #a8a8a8;
  --white: #ffffff;
  --shadow: 0 30px 90px rgba(0,0,0,0.65);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 0%, rgba(255,255,255,0.12), transparent 32rem),
    linear-gradient(180deg, #050505 0%, #000 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: .05;
  z-index: 0;
  background-image: linear-gradient(90deg, rgba(255,255,255,.35) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at center, black, transparent 75%);
}

a { color: inherit; text-decoration: none; }
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: .08em; }
.brand img { width: 42px; height: 42px; border-radius: 50%; }
nav { display: flex; align-items: center; gap: 22px; color: var(--muted); font-weight: 700; font-size: 14px; }
nav a:hover { color: var(--white); }
.nav-cta { color: #000; background: #fff; padding: 10px 16px; border-radius: 999px; }
.nav-cta:hover { color: #000; transform: translateY(-1px); }

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 130px 20px 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(0,0,0,.18), rgba(0,0,0,.82)), url('../img/txr-banner.png') center/cover no-repeat;
  opacity: .72;
  transform: scale(1.02);
}
.hero-content { position: relative; z-index: 1; max-width: 900px; }
.hero-logo { width: 128px; height: 128px; border-radius: 50%; margin-bottom: 24px; box-shadow: 0 0 55px rgba(255,255,255,.28); }
.eyebrow { color: var(--muted); text-transform: uppercase; letter-spacing: .22em; font-weight: 800; font-size: 12px; }
h1 { font-size: clamp(48px, 8vw, 106px); line-height: .9; margin: 16px 0; letter-spacing: -.07em; }
h2 { font-size: clamp(34px, 5vw, 68px); letter-spacing: -.05em; line-height: .95; }
h3 { font-size: 26px; letter-spacing: -.03em; }
.hero-text { color: #d7d7d7; font-size: clamp(17px, 2vw, 22px); margin: 0 auto 34px; max-width: 620px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 900;
  transition: .22s ease;
}
.btn.primary { background: #fff; color: #000; border-color: #fff; }
.btn.ghost { background: rgba(255,255,255,.05); color: #fff; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 45px rgba(255,255,255,.12); }
.btn.full { width: 100%; margin-top: 22px; background: #fff; color: #000; }

.section, .split-section, .credits { position: relative; z-index: 1; max-width: 1180px; margin: 0 auto; padding: 110px clamp(20px, 5vw, 40px); }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 44px; }
.section-head p:last-child, .credits p { color: var(--muted); margin-top: 12px; font-size: 17px; }
.bot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.bot-card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 24px;
  box-shadow: var(--shadow);
  min-height: 310px;
  display: flex;
  flex-direction: column;
}
.bot-card p { color: var(--muted); margin: 12px 0 18px; flex: 1; }
.bot-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.bot-top img { width: 46px; height: 46px; border-radius: 50%; }
.bot-top span, .command { border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; color: #ddd; font-size: 12px; font-weight: 800; }
.command { display: inline-flex; width: fit-content; }

.split-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; align-items: start; }
.steps { display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 18px; align-items: center; border: 1px solid var(--line); border-radius: 20px; padding: 18px; background: rgba(255,255,255,.035); }
.step span { color: #000; background: #fff; border-radius: 14px; height: 44px; display: grid; place-items: center; font-weight: 900; }
.step p { color: #ddd; }

.banner-card { max-width: 1180px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 40px) 110px; }
.banner-card img { width: 100%; border-radius: 30px; border: 1px solid var(--line); box-shadow: var(--shadow); display: block; }
.credits { text-align: center; padding-top: 30px; }
.credits .btn { margin-top: 28px; }
footer { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 30px clamp(20px,5vw,72px); color: #777; border-top: 1px solid var(--line); }

.reveal { opacity: 0; transform: translateY(24px); transition: .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  nav a:not(.nav-cta) { display: none; }
  .bot-grid, .split-section { grid-template-columns: 1fr; }
  .hero-logo { width: 96px; height: 96px; }
}


/* Buy page */
.buy-hero {
  position: relative;
  min-height: 72vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 150px 20px 80px;
  background:
    linear-gradient(rgba(0,0,0,.35), rgba(0,0,0,.92)),
    url('../img/txr-banner.png') center/cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.buy-hero > div { max-width: 880px; position: relative; z-index: 1; }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.product-card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 24px;
  box-shadow: var(--shadow);
  min-height: 340px;
  display: flex;
  flex-direction: column;
}
.product-card p { color: var(--muted); margin: 12px 0 18px; }
.product-card ul { list-style: none; display: grid; gap: 9px; margin: 0 0 8px; flex: 1; }
.product-card li { color: #d8d8d8; font-size: 14px; }
.product-card li::before { content: "•"; color: #fff; margin-right: 8px; }
.product-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; }
.product-top span, .product-top strong {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 11px;
  color: #ddd;
  font-size: 12px;
  font-weight: 900;
}
.product-top strong { background: #fff; color: #000; border-color: #fff; }
@media (max-width: 1100px) { .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 650px) { .product-grid { grid-template-columns: 1fr; } }