/** Coherent Sky landing — scoped Preview3/Fabio presentation layer. */
@keyframes cs-landing-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes cs-landing-breathe { 50% { opacity: .8; transform: scale(1.035); } }

.cs-landing {
  --cs-cyan: #00bfff;
  --cs-blue: #1e90ff;
  --cs-green: #55dc72;
  width: 100%;
  min-height: 100svh;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(14px, 3.5vw, 52px);
  background: linear-gradient(180deg, rgba(4,25,58,.70), rgba(3,10,26,.88)), url("../images/sky-background-trails.webp") center / cover no-repeat;
  background-color: #1557ac;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}
.cs-landing *, .cs-landing *::before, .cs-landing *::after { box-sizing: border-box; }
.cs-landing__hero {
  width: min(1280px, 100%);
  min-height: min(720px, calc(100svh - 104px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
  align-items: center;
  gap: clamp(24px, 5vw, 80px);
  padding: clamp(32px, 7vw, 90px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 28px;
  background: rgba(5,15,40,.48);
  box-shadow: 0 24px 80px rgba(0,10,35,.4), inset 0 1px rgba(255,255,255,.11);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  animation: cs-landing-in .65s ease-out both;
}
.cs-landing__copy { position: relative; z-index: 2; }
.cs-landing__eyebrow { margin: 0 0 16px; color: rgba(255,255,255,.68); font-size: .72rem; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; }
.cs-landing__eyebrow span, .cs-landing__availability span { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--cs-green); box-shadow: 0 0 14px rgba(85,220,114,.85); }
.cs-landing h1 { width: fit-content; max-width: 100%; margin: 0 0 24px; color: #fff; font-size: clamp(2.3rem, 7vw, 6.4rem); font-weight: 730; line-height: .9; letter-spacing: -.07em; white-space: nowrap; text-shadow: 0 12px 40px rgba(0,15,50,.35); }
.cs-landing .cs-title-accent { color: var(--cs-cyan); }
.cs-landing__lead { max-width: 620px; margin: 0; color: rgba(255,255,255,.82); font-size: clamp(1rem, 1.6vw, 1.2rem); line-height: 1.72; }
.cs-landing__actions { max-width: 620px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 34px; }
.cs-landing__button { min-height: 58px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 20px; border: 1px solid rgba(255,255,255,.2); border-radius: 15px; color: #fff; font: inherit; font-size: .98rem; font-weight: 750; text-align: center; text-decoration: none; cursor: pointer; transition: transform .18s, box-shadow .18s, background .18s; }
.cs-landing__button:hover { color: #fff; transform: translateY(-2px); }
.cs-landing__button:focus-visible, .cs-install-card__close:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
.cs-landing__button--primary { background: linear-gradient(110deg, var(--cs-blue), var(--cs-cyan)); box-shadow: 0 14px 34px rgba(0,140,240,.32), inset 0 1px rgba(255,255,255,.2); }
.cs-landing__button--primary:hover { box-shadow: 0 18px 44px rgba(0,160,255,.46); }
.cs-landing__button--secondary { background: rgba(5,15,45,.42); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.cs-landing__button--secondary:hover { background: rgba(8,30,72,.68); }
.cs-landing__button svg { width: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.cs-landing__button:disabled { cursor: default; opacity: .7; transform: none; }
.cs-landing__availability { margin: 20px 0 0; color: rgba(255,255,255,.58); font-size: .78rem; }
.cs-landing__availability span { width: 6px; height: 6px; margin-right: 6px; }
.cs-landing__visual { min-height: 420px; position: relative; display: grid; place-items: center; }
.cs-landing__orb { width: clamp(240px, 31vw, 410px); aspect-ratio: 1; position: relative; display: grid; place-items: center; border: 1px solid rgba(0,191,255,.42); border-radius: 50%; background: radial-gradient(circle, rgba(0,191,255,.16), rgba(0,62,135,.06) 45%, transparent 70%); box-shadow: 0 0 100px rgba(0,191,255,.18); animation: cs-landing-breathe 7s ease-in-out infinite; }
.cs-landing__orb i { position: absolute; inset: 12%; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; }
.cs-landing__orb i:nth-child(2) { inset: 27%; border-color: rgba(0,191,255,.52); }
.cs-landing__orb i:nth-child(3) { inset: 42%; border-color: rgba(85,220,114,.48); }
.cs-landing__orb b { width: 74px; height: 74px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; background: rgba(5,15,40,.52); color: rgba(255,255,255,.85); font-size: 1.2rem; letter-spacing: .16em; }
.cs-landing__signal { width: 9px; height: 9px; position: absolute; border-radius: 50%; background: var(--cs-cyan); box-shadow: 0 0 18px var(--cs-cyan); }
.cs-landing__signal--one { top: 18%; right: 16%; }
.cs-landing__signal--two { bottom: 17%; left: 18%; background: var(--cs-green); box-shadow: 0 0 18px var(--cs-green); }
.cs-install-card { width: min(760px, calc(100% - 28px)); position: relative; z-index: 4; margin: 24px auto 0; padding: clamp(22px, 4vw, 34px); border: 1px solid rgba(255,255,255,.2); border-radius: 22px; background: rgba(5,18,52,.76); box-shadow: 0 22px 64px rgba(0,10,35,.42); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); animation: cs-landing-in .35s ease-out both; }
.cs-install-card[hidden] { display: none; }
.cs-install-card__heading { display: grid; grid-template-columns: 46px 1fr; align-items: center; gap: 14px; }
.cs-install-card__icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 14px; background: linear-gradient(135deg, var(--cs-blue), var(--cs-cyan)); font-size: 1.6rem; }
.cs-install-card__heading p { margin: 0 0 3px; color: var(--cs-cyan); font-size: .68rem; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
.cs-install-card h2 { margin: 0; color: #fff; font-size: clamp(1.25rem, 3vw, 1.65rem); }
.cs-install-card > p { color: rgba(255,255,255,.74); line-height: 1.6; }
.cs-install-card__steps { display: grid; gap: 10px; padding: 0; list-style: none; }
.cs-install-card__steps li { display: grid; gap: 3px; padding: 13px 15px; border: 1px solid rgba(255,255,255,.12); border-radius: 13px; background: rgba(4,12,32,.4); }
.cs-install-card__steps span { color: rgba(255,255,255,.7); font-size: .9rem; }
.cs-install-card__close { padding: 7px 0; border: 0; background: transparent; color: #86e9ff; font: inherit; font-size: .86rem; cursor: pointer; }
.cs-install-card--noscript { display: block; }
.cs-landing__footer { width: min(1280px, 100%); display: flex; justify-content: space-between; margin: 22px auto 0; color: rgba(255,255,255,.48); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.cs-landing__glow { width: 320px; height: 320px; position: absolute; z-index: -1; border-radius: 50%; filter: blur(80px); background: rgba(0,191,255,.15); }
.cs-landing__glow--one { top: -120px; left: -100px; }
.cs-landing__glow--two { right: -130px; bottom: -100px; background: rgba(30,144,255,.2); }

@media (max-width: 820px) {
  .cs-landing { padding: 10px 10px 24px; }
  .cs-landing__hero { min-height: calc(100svh - 20px); grid-template-columns: 1fr; align-content: center; gap: 20px; padding: 34px 20px; border-radius: 22px; }
  .cs-landing h1 { font-size: clamp(2.3rem, 11vw, 4.8rem); }
  .cs-landing__visual { min-height: 210px; position: absolute; inset: auto -65px -40px auto; opacity: .32; }
  .cs-landing__orb { width: 280px; }
  .cs-landing__actions { grid-template-columns: 1fr; }
  .cs-landing__button { width: 100%; }
  .cs-landing__availability { max-width: 75%; }
  .cs-landing__footer { padding-inline: 8px; }
}
@media (max-width: 430px) {
  .cs-landing__hero { padding: 30px 17px; }
  .cs-landing h1 { margin-bottom: 20px; font-size: clamp(2.3rem, 11vw, 4rem); }
  .cs-landing__lead { font-size: .96rem; line-height: 1.62; }
  .cs-landing__actions { margin-top: 26px; }
  .cs-landing__footer span:last-child { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .cs-landing__hero, .cs-install-card, .cs-landing__orb { animation: none; }
  .cs-landing__button { transition: none; }
}