/* The Uptime Promise — full-bleed manifesto page. */
.promise {
  /* ponytail: plain block flow, not the .uc centering flexbox — this page's
     content is taller than the viewport and a centered flex child overflows
     unreachably past the top edge. min-height keeps it full-bleed. */
  min-height: 100vh;
  text-align: center;
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(111,163,201,.10), transparent 60%),
    var(--ink);
  padding: clamp(140px, 24vh, 260px) var(--pad) clamp(90px, 14vh, 160px);
  position: relative;
  overflow: hidden;
}
.promise::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(0deg, var(--ink), transparent 35%, transparent 72%, rgba(7,9,11,.6));
}
.promise__inner { position: relative; z-index: 2; max-width: 760px; margin: 0 auto; }
.promise__mark { width: clamp(92px, 12vw, 148px); margin: 0 auto 34px; opacity: .92; }
.promise__title { font-size: clamp(44px, 8vw, 104px); }
.promise__lede {
  font-size: clamp(18px, 2.1vw, 23px); line-height: 1.55; color: var(--white);
  margin: 32px auto 0; max-width: 620px;
}

.promise__pillars {
  list-style: none; margin: clamp(40px, 6vh, 64px) auto 0; max-width: 560px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
.promise__pillars li {
  font-family: var(--font-m); font-size: clamp(12px, 1.4vw, 15px); font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase; color: var(--steel);
  padding: 13px 0;
}
.promise__pillars li + li { border-top: 1px solid var(--line); }

.promise__body {
  font-size: clamp(17px, 1.9vw, 20px); color: var(--fog);
  margin: clamp(40px, 6vh, 64px) auto 0; max-width: 600px;
}
.promise__sig {
  font-family: var(--font-m); font-size: clamp(11px, 1.3vw, 13px); font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--mute);
  line-height: 2; margin-top: clamp(34px, 5vh, 52px);
}

@media (max-width: 640px) {
  .promise { padding-top: clamp(110px, 16vh, 150px); padding-bottom: clamp(70px, 10vh, 100px); }
  .promise__mark { margin-bottom: 24px; }
}