/* ============================================
   VERTEX — Site Upgrade Page
   Palette derived from brand mark:
   navy-950 #0d1826 · navy-900 #12233a · navy-800 #1a3050
   cream    #ece1cd · cream-dim rgba(236,225,205,.58)
   hairline rgba(236,225,205,.14)
   ============================================ */

:root {
  --navy-950: #0d1826;
  --navy-900: #12233a;
  --navy-800: #1a3050;
  --cream: #ece1cd;
  --cream-dim: rgba(236, 225, 205, 0.58);
  --cream-faint: rgba(236, 225, 205, 0.32);
  --hairline: rgba(236, 225, 205, 0.14);
  --focus: #c9a06a;

  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  background: var(--navy-900);
  color: var(--cream);
  font-family: var(--font-sans);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 1px solid var(--focus);
  outline-offset: 4px;
}

/* ---------- Ambient background ---------- */

.noise-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 120% 80% at 18% 8%, rgba(236, 225, 205, 0.05), transparent 55%),
    radial-gradient(ellipse 90% 70% at 85% 95%, rgba(26, 48, 80, 0.9), transparent 60%),
    var(--navy-950);
  pointer-events: none;
}

.beam-layer {
  position: fixed;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image: repeating-linear-gradient(
    115deg,
    var(--cream) 0px,
    var(--cream) 1px,
    transparent 1px,
    transparent 140px
  );
  animation: driftBeams 50s linear infinite;
  will-change: transform;
}

@keyframes driftBeams {
  0%   { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-140px, 90px, 0); }
}

/* ---------- Stage / layout ---------- */

.stage {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4) var(--space-3) var(--space-4);
  gap: var(--space-3);
}

/* ---------- Logo ---------- */

.mark {
  opacity: 0;
  transform: translateY(6px);
  animation: markIn 0.7s cubic-bezier(0.19, 1, 0.22, 1) forwards;
  margin-bottom: var(--space-2);
}

.mark-logo {
  height: 58px;
  width: auto;
  display: block;
}

@keyframes markIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Loader cluster ---------- */

.loader {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 220px;
  max-width: 60vw;
  opacity: 0;
  animation: markIn 0.6s cubic-bezier(0.19, 1, 0.22, 1) forwards;
  animation-delay: 0.25s;
  margin-bottom: var(--space-2);
}

.loader-track {
  flex: 1;
  height: 1px;
  background: var(--hairline);
  position: relative;
  overflow: hidden;
}

.loader-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: var(--cream);
  transition: width 0.05s linear;
}

.loader-pct {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--cream-faint);
  font-variant-numeric: tabular-nums;
  min-width: 30px;
  text-align: left;
}

/* ---------- Headline ---------- */

.headline {
  font-size: clamp(20px, 4.6vw, 40px);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--cream);
  max-width: 92vw;
}

.headline .line {
  display: block;
  white-space: nowrap;
  opacity: 0;
}

.headline .line.is-decoding {
  opacity: 1;
}

/* individual scramble chars get their own span via JS */
.headline .char {
  display: inline-block;
}

/* ---------- Subtext ---------- */

.subtext {
  font-size: clamp(14px, 1.6vw, 16px);
  font-weight: 400;
  line-height: 1.65;
  color: var(--cream-dim);
  max-width: 38ch;
  letter-spacing: 0.01em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s cubic-bezier(0.19, 1, 0.22, 1), transform 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.subtext.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- CTA button ---------- */

.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: var(--space-2);
  padding: 15px 28px;
  border: 1px solid var(--cream-faint);
  border-radius: 2px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream);
  background: transparent;
  transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease, transform 0.25s ease;
  opacity: 0;
  transform: translateY(8px);
}

.cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s cubic-bezier(0.19, 1, 0.22, 1), transform 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.cta:hover,
.cta:focus-visible {
  background: var(--cream);
  color: var(--navy-950);
  border-color: var(--cream);
}

.cta:active {
  transform: translateY(0) scale(0.98);
}

.cta-icon {
  transition: transform 0.35s cubic-bezier(0.19, 1, 0.22, 1);
}

.cta:hover .cta-icon,
.cta:focus-visible .cta-icon {
  transform: translateX(3px);
}

/* ---------- Footer line ---------- */

.footer-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  color: var(--cream-faint);
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 1s ease;
  z-index: 1;
  margin-top: var(--space-4);
}

.footer-line.is-visible {
  opacity: 1;
}

.footer-line .dot {
  opacity: 0.5;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .beam-layer { animation: none; }
  .mark, .loader { animation: none; opacity: 1; transform: none; }
  .subtext, .cta, .footer-line {
    transition: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .stage {
    padding: var(--space-3) var(--space-2) var(--space-5);
    gap: var(--space-2);
  }

  .mark-logo {
    height: 42px;
  }

  .headline {
    max-width: 94vw;
    letter-spacing: 0.03em;
  }

  .subtext {
    max-width: 30ch;
  }

  .cta {
    padding: 14px 22px;
  }

  .footer-line {
    flex-direction: column;
    gap: 2px;
    margin-top: var(--space-3);
  }

  .footer-line .dot {
    display: none;
  }
}

@media (max-height: 560px) {
  .stage {
    justify-content: flex-start;
    padding-top: var(--space-5);
  }
}