/* XC Team OS — landing. Tokens per BRAND.md. */
:root {
  --blaze: #FF5A00;
  --blaze-deep: #D64A00;
  --blaze-tint: #FFEDE3;
  --charcoal: #202124;
  --charcoal-2: #2E3033;
  --chalk: #F5F3EF;
  --chalk-dim: #A9ABAD;
  --ink-dim: #5F6266;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--chalk); color: var(--charcoal);
  font-family: 'Archivo', system-ui, sans-serif; font-size: 17px; line-height: 1.55;
}
h1, h2, h3 { font-weight: 800; line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 14px; }
h1 { font-size: clamp(34px, 6vw, 58px); }
h2 { font-size: clamp(26px, 4vw, 38px); }
h3 { font-size: 19px; }
p { margin: 0 0 14px; }
a { color: var(--blaze-deep); text-underline-offset: 3px; }
img, svg { max-width: 100%; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 22px; }
section { padding: 72px 0; }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--blaze); margin-bottom: 12px;
}
.rule { height: 3px; width: 56px; background: var(--blaze); border: 0; margin: 0 0 22px; }

/* header */
header {
  background: var(--charcoal); color: var(--chalk);
  padding: 18px 0;
}
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { height: 30px; color: var(--chalk); display: block; }
.header-cta {
  font-weight: 800; font-size: 14px; color: var(--charcoal); background: var(--blaze);
  text-decoration: none; padding: 10px 18px; border-radius: 0;
}
.header-cta:hover { background: #ff7426; color: var(--charcoal); }

/* hero */
.hero { background: var(--charcoal); color: var(--chalk); padding: 64px 0 84px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero p.lead { font-size: 20px; color: var(--chalk-dim); max-width: 46ch; }
.hero strong { color: var(--chalk); }

/* waitlist form */
.waitlist { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.waitlist input[type="email"] {
  flex: 1; min-width: 220px; font: inherit; font-size: 16px; padding: 13px 14px;
  border: 2px solid var(--charcoal-2); background: var(--chalk); color: var(--charcoal);
}
.waitlist input:focus-visible { outline: 3px solid var(--blaze); outline-offset: 0; border-color: var(--blaze); }
.btn {
  font: inherit; font-weight: 800; font-size: 16px; cursor: pointer;
  background: var(--blaze); color: var(--charcoal); border: none; padding: 13px 26px;
}
.btn:hover { background: #ff7426; }
.btn:active { background: var(--blaze-deep); color: var(--chalk); }
.fineprint { font-size: 13px; color: var(--chalk-dim); margin-top: 10px; }

/* phone mockup */
.phone {
  width: 300px; margin: 0 auto; background: #16171a; border-radius: 34px; padding: 12px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}
.phone-screen { background: var(--chalk); border-radius: 24px; overflow: hidden; font-size: 12px; color: var(--charcoal); }
.ps-head { background: var(--charcoal); color: var(--chalk); padding: 10px 12px; font-weight: 800; font-size: 12px; letter-spacing: 0.06em; display: flex; justify-content: space-between; align-items: center; }
.ps-live { background: var(--charcoal); color: var(--chalk); padding: 10px 12px; border-top: 1px solid #33363a; }
.ps-live .tag { display: inline-flex; align-items: center; gap: 6px; font-size: 10px; font-weight: 800; letter-spacing: 0.08em; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blaze); animation: pulse 1.2s ease-in-out infinite alternate; }
@keyframes pulse { from { opacity: 1 } to { opacity: 0.35 } }
.ps-clock { font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums; margin-top: 2px; }
.ps-rows { padding: 4px 12px 12px; }
.ps-row { display: flex; align-items: center; gap: 8px; padding: 7px 0; border-bottom: 1px solid #e2dfda; }
.ps-row .pl { width: 16px; font-weight: 800; color: var(--ink-dim); }
.ps-row .nm { flex: 1; font-weight: 600; }
.ps-row .pr { background: var(--blaze); color: #fff; font-size: 9px; font-weight: 800; padding: 2px 5px; }
.ps-row .tm { font-weight: 800; font-variant-numeric: tabular-nums; }

/* problem strip */
.problem { background: var(--chalk); }
.stack { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--charcoal); margin: 26px 0 18px; }
.stack div { background: var(--chalk); padding: 18px 16px; }
.stack b { display: block; font-size: 15px; }
.stack span { font-size: 13px; color: var(--ink-dim); }

/* features */
.features { background: var(--blaze-tint); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.card { background: var(--chalk); border-top: 3px solid var(--blaze); padding: 20px 18px; }
.card p { font-size: 14.5px; color: var(--ink-dim); margin: 0; }

/* give-back */
.giveback { background: var(--charcoal); color: var(--chalk); }
.giveback .big { font-size: clamp(44px, 8vw, 84px); font-weight: 800; line-height: 1; color: var(--blaze); }
.gb-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.gb-math { background: var(--charcoal-2); padding: 26px; }
.gb-math .row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid #3a3d41; font-size: 15px; }
.gb-math .row:last-child { border-bottom: 0; font-weight: 800; color: var(--blaze); font-size: 17px; }
.giveback p { color: var(--chalk-dim); }
.giveback p strong { color: var(--chalk); }

/* trust */
.trust .grid { grid-template-columns: repeat(3, 1fr); }

/* faq */
.faq details { border-bottom: 1px solid #ddd9d2; padding: 16px 0; }
.faq summary { font-weight: 800; cursor: pointer; font-size: 17px; }
.faq details p { margin: 12px 0 0; color: var(--ink-dim); }

/* footer */
footer { background: var(--charcoal); color: var(--chalk-dim); padding: 40px 0; font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--chalk); }
footer .logo { height: 22px; color: var(--chalk); }

@media (max-width: 860px) {
  section { padding: 52px 0; }
  .hero .wrap, .gb-cols { grid-template-columns: 1fr; }
  .grid, .stack { grid-template-columns: 1fr 1fr; }
  .phone { margin-top: 8px; }
}
@media (max-width: 520px) {
  .grid, .stack { grid-template-columns: 1fr; }
}