/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:         #080808;
  --bg-2:       #111111;
  --ink:        #f0f0f0;
  --ink-soft:   rgba(240, 240, 240, 0.72);
  --ink-mute:   rgba(240, 240, 240, 0.4);
  --accent:     #00a896;
  --accent-2:   #00c9b1;
  --accent-dim: rgba(0, 168, 150, 0.18);
  --line:       rgba(240, 240, 240, 0.1);
  --gutter:     clamp(1.5rem, 6vw, 4rem);
  --radius:     4px;

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft:   cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

  --font-display: "Bebas Neue", "Impact", sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --mono:         "JetBrains Mono", "Courier New", monospace;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1 { text-wrap: balance; line-height: 0.96; letter-spacing: -0.01em; }
.mono { font-family: var(--mono); }
::selection { background: var(--accent); color: var(--bg); }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: 0.6rem 1.2rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: var(--radius); font-weight: 500;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* Faint film-grain texture across the whole page */
body::before {
  content: "";
  position: fixed; inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* =============================================================
   3. HUD chrome (decorative telemetry frame)
   ============================================================= */
.hud {
  position: fixed; inset: 0;
  z-index: 40;
  pointer-events: none;
}
.hud-corner {
  position: absolute;
  width: clamp(28px, 4vw, 44px);
  height: clamp(28px, 4vw, 44px);
  border: 1px solid var(--accent-dim);
  opacity: 0.6;
}
.hud-corner--tl { top: var(--gutter); left: var(--gutter); border-right: 0; border-bottom: 0; }
.hud-corner--tr { top: var(--gutter); right: var(--gutter); border-left: 0; border-bottom: 0; }
.hud-corner--bl { bottom: var(--gutter); left: var(--gutter); border-right: 0; border-top: 0; }
.hud-corner--br { bottom: var(--gutter); right: var(--gutter); border-left: 0; border-top: 0; }

.hud-rec, .hud-clock {
  position: absolute;
  top: calc(var(--gutter) + 2px);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.hud-rec {
  left: calc(var(--gutter) + 3.2rem);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hud-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #ff4d4d;
  animation: hudBlink 1.6s step-start infinite;
}
.hud-clock { right: calc(var(--gutter) + 3.2rem); }

@keyframes hudBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.15; }
}

@media (max-width: 719px) {
  .hud-rec, .hud-clock { display: none; }
}

/* =============================================================
   4. Loading screen
   ============================================================= */
.loader {
  position: fixed; inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 0.7s var(--ease-soft), visibility 0.7s;
  /* Safety net: hides automatically even if JS never runs */
  animation: loaderSafety 0.01s 5.5s forwards;
}
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  padding-inline: 1.5rem;
  text-align: center;
}
.loader-logo {
  width: clamp(72px, 14vw, 112px);
  height: auto;
  opacity: 0;
  transform: scale(0.82);
  animation: loaderLogoIn 0.9s var(--ease-bounce) 0.15s forwards;
  filter: drop-shadow(0 0 28px var(--accent-dim));
}
.loader-status {
  min-height: 1.1em;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  opacity: 0;
  animation: loaderFadeIn 0.6s var(--ease-out) 0.5s forwards;
}
.loader-bar {
  width: clamp(180px, 34vw, 280px);
  height: 2px;
  background: var(--line);
  overflow: hidden;
  opacity: 0;
  animation: loaderFadeIn 0.6s var(--ease-out) 0.55s forwards;
}
.loader-bar-fill {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.25s linear;
}
.loader-pct {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  opacity: 0;
  animation: loaderFadeIn 0.6s var(--ease-out) 0.6s forwards;
}
.loader-skip {
  position: absolute;
  bottom: var(--gutter);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  opacity: 0;
  animation: loaderFadeIn 0.6s var(--ease-out) 1.2s forwards;
  transition: color 0.25s var(--ease-out);
}
.loader-skip:hover, .loader-skip:focus-visible { color: var(--accent-2); }

.loader.is-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

@keyframes loaderLogoIn {
  to { opacity: 1; transform: scale(1); }
}
@keyframes loaderFadeIn {
  to { opacity: 1; }
}
@keyframes loaderSafety {
  to { opacity: 0; visibility: hidden; pointer-events: none; }
}

/* =============================================================
   5. Stage (main presentation content)
   ============================================================= */
.stage {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(6rem, 12vh, 9rem) var(--gutter) clamp(4rem, 8vh, 6rem);
  isolation: isolate;
}
.stage-glow {
  position: absolute;
  inset: -20% -10% -10% -10%;
  z-index: -1;
  background: radial-gradient(46% 38% at 50% 28%, var(--accent-dim), transparent 72%);
  filter: blur(60px);
  pointer-events: none;
}
.stage-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 640px;
}
.stage-logo {
  width: clamp(56px, 8vw, 84px);
  margin-bottom: 1.6rem;
}
.stage-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 1.1rem;
}
.stage-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 6.2rem);
  color: var(--ink);
  margin-bottom: 1.3rem;
}
.stage-sub {
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  max-width: 46ch;
  margin-bottom: 2.4rem;
}
.stage-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.8rem;
  background: var(--accent);
  color: #06110f;
  font-weight: 600;
  border-radius: 999px;
  transition: transform 0.3s var(--ease-out), background 0.3s var(--ease-out);
}
.btn-primary span { transition: transform 0.3s var(--ease-out); }
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--accent-2);
  transform: translateY(-2px);
}
.btn-primary:hover span, .btn-primary:focus-visible span { transform: translateX(3px); }
.stage-cta-note {
  font-size: 0.78rem;
  color: var(--ink-mute);
  transition: color 0.25s var(--ease-out);
}
.stage-cta-note:hover, .stage-cta-note:focus-visible { color: var(--accent-2); }

.stage-footer {
  position: absolute;
  bottom: var(--gutter);
  left: var(--gutter);
  right: var(--gutter);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* =============================================================
   6. Reveal animations (stage content)
   ============================================================= */
.reveal-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  transition-delay: var(--delay, 0s);
  /* Safety: content must never stay invisible if JS is slow/blocked/absent */
  animation: revealSafety 0.01s 3.6s forwards;
}
.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@keyframes revealSafety {
  to { opacity: 1; transform: none; }
}

/* =============================================================
   7. Responsive
   ============================================================= */
@media (min-width: 540px) {
  .stage-cta { flex-direction: row; }
}

/* =============================================================
   8. Reduced motion — only the intrusive stuff
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .loader { animation-duration: 0.01s; animation-delay: 0.4s; }
  .loader-logo, .loader-status, .loader-bar, .loader-pct, .loader-skip {
    animation-duration: 0.01s;
    animation-delay: 0s;
  }
  .hud-dot { animation: none; opacity: 1; }
}