body { font-family: 'Sora', ui-sans-serif, system-ui, sans-serif; }

    /* ---------- Ambient background (light + dark) ---------- */
    .bg-scene {
      position: fixed; inset: 0; z-index: -1; pointer-events: none;
      background:
        radial-gradient(60rem 40rem at 78% 8%, rgba(6,182,212,.10), transparent 60%),
        radial-gradient(50rem 40rem at 5% 55%, rgba(99,102,241,.10), transparent 60%),
        #f8fafc;
    }
    html.dark .bg-scene {
      background:
        radial-gradient(60rem 40rem at 78% 8%, rgba(6,182,212,.14), transparent 60%),
        radial-gradient(50rem 40rem at 5% 55%, rgba(99,102,241,.13), transparent 60%),
        #020617;
    }
    .bg-grid {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(15,23,42,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,.06) 1px, transparent 1px);
      background-size: 56px 56px;
      -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 75%);
      mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 75%);
    }
    html.dark .bg-grid {
      background-image:
        linear-gradient(rgba(148,163,184,.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.07) 1px, transparent 1px);
    }

    /* ---------- Splash (always dark) ---------- */
    @keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
    .animate-spin-slow { animation: spin-slow 8s linear infinite; }
    .fade-out { opacity: 0; transform: scale(1.05); transition: opacity .8s ease, transform .8s ease; }
    .hidden-display { display: none !important; }

    /* ---------- Entrance ---------- */
    @keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
    .rise { opacity: 0; animation: rise .9s cubic-bezier(.16,1,.3,1) forwards; animation-delay: calc(.55s + var(--i, 0) * .12s); }
    .popup-in { animation: rise .8s cubic-bezier(.16,1,.3,1) 1s both; }

    /* ---------- 3D tilt cards ---------- */
    .tilt {
      transform: perspective(1100px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
      transform-style: preserve-3d;
      transition: transform .6s cubic-bezier(.16,1,.3,1), box-shadow .4s ease;
      will-change: transform;
    }
    .tilt.is-active { transition: transform .12s ease-out, box-shadow .4s ease; }
    .tilt::after {
      content: ""; position: absolute; inset: 0; border-radius: inherit;
      background: radial-gradient(420px circle at var(--gx, 50%) var(--gy, 0%), rgba(255,255,255,.10), transparent 45%);
      opacity: 0; transition: opacity .3s; pointer-events: none; transform: translateZ(1px);
    }
    html:not(.dark) .tilt::after {
      background: radial-gradient(420px circle at var(--gx, 50%) var(--gy, 0%), rgba(6,182,212,.08), transparent 45%);
    }
    .tilt:hover::after { opacity: 1; }
    .tilt:hover { box-shadow: 0 40px 80px -30px rgba(6,182,212,.30), 0 0 0 1px rgba(34,211,238,.12); }
    .tilt.warn:hover { box-shadow: 0 40px 80px -30px rgba(244,63,94,.28), 0 0 0 1px rgba(244,63,94,.12); }
    html:not(.dark) .tilt:hover { box-shadow: 0 30px 60px -30px rgba(6,182,212,.22), 0 0 0 1px rgba(6,182,212,.12); }
    html:not(.dark) .tilt.warn:hover { box-shadow: 0 30px 60px -30px rgba(244,63,94,.20), 0 0 0 1px rgba(244,63,94,.12); }
    .z-1 { transform: translateZ(24px); }
    .z-2 { transform: translateZ(42px); }
    .z-3 { transform: translateZ(60px); }

    /* ---------- Animated borders ---------- */
    @keyframes gradient-move { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
    .glow-border, .red-glow-border {
      position: absolute; inset: 0; border-radius: 1.5rem; padding: 2px;
      background-size: 600% 600%;
      animation: gradient-move 4s linear infinite;
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: destination-out;
      mask-composite: exclude;
      z-index: 0; pointer-events: none;
    }
    .glow-border { background-image: linear-gradient(270deg, #6366f1, #06b6d4, #3b82f6, #6366f1); }
    .red-glow-border { background-image: linear-gradient(270deg, #ef4444, #f43f5e, #dc2626, #ef4444); }

    /* ---------- Floating icon ---------- */
    @keyframes bob { 0%,100% { transform: translateZ(70px) translateY(0); } 50% { transform: translateZ(70px) translateY(-5px); } }
    .bob { animation: bob 4.5s ease-in-out infinite; }

    /* ---------- Tabs (light + dark) ---------- */
    .tab-button {
      background: rgba(30,41,59,.7); color: #cbd5e1; border: 1px solid #334155;
      padding: .65rem 1.25rem; border-radius: .9rem; font-weight: 700; font-size: .875rem;
      transition: all .25s ease;
    }
    html:not(.dark) .tab-button {
      background: #ffffff; color: #334155; border-color: #e5e7eb;
    }
    .tab-button:hover {
      border-color: rgba(34,211,238,.5); color: #ffffff; transform: translateY(-2px);
    }
    html:not(.dark) .tab-button:hover {
      color: #0891b2; box-shadow: 0 6px 16px -8px rgba(6,182,212,.35);
    }
    .tab-button.is-active {
      background: linear-gradient(135deg, #22d3ee, #6366f1); color: #020617; border-color: transparent;
      box-shadow: 0 10px 25px -8px rgba(34,211,238,.5);
    }
    html:not(.dark) .tab-button.is-active {
      color: #ffffff;
      box-shadow: 0 10px 25px -8px rgba(34,211,238,.6);
    }

    /* ---------- Unified nav links (light + dark aware) ---------- */
    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: .4rem .75rem;
      border-radius: .5rem;
      color: #475569;
      transition: color .18s ease, background-color .18s ease, box-shadow .18s ease;
    }
    html.dark .nav-link { color: #cbd5e1; }

    .nav-link:hover {
      color: #0891b2;
      background: rgba(6, 182, 212, .08);
    }
    html.dark .nav-link:hover {
      color: #22d3ee;
      background: rgba(6, 182, 212, .10);
    }

    .nav-link[aria-current="page"] {
      color: #0891b2;
      background: rgba(6, 182, 212, .12);
      box-shadow: inset 0 0 0 1px rgba(6, 182, 212, .25);
    }
    html.dark .nav-link[aria-current="page"] {
      color: #22d3ee;
      background: rgba(6, 182, 212, .15);
      box-shadow: inset 0 0 0 1px rgba(34, 211, 238, .30);
    }

    @media (prefers-reduced-motion: reduce) {
      .rise, .popup-in { animation: none; opacity: 1; }
      .bob, .glow-border, .red-glow-border, .animate-spin-slow { animation: none; }
      .tilt, .tilt.is-active { transition: none; }
    }
    a:focus-visible, button:focus-visible { outline: 2px solid #22d3ee; outline-offset: 3px; border-radius: .5rem; }
  /* ============================================================
   elplc Download CTA
   ============================================================ */

/* Wrapper — holds the chasing halo */
.dl-cta-wrap {
  position: relative;
  display: inline-flex;
  isolation: isolate;
}

/* Chasing gradient halo behind the button */
.dl-cta-wrap::before {
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 999px;
  background: linear-gradient(90deg, #22d3ee, #6366f1, #22d3ee);
  background-size: 200% 200%;
  filter: blur(22px);
  opacity: .5;
  animation: dl-halo 6s linear infinite;
  z-index: -1;
  transition: opacity .3s ease, filter .3s ease;
}
.dl-cta-wrap:hover::before {
  opacity: .95;
  filter: blur(28px);
}
@keyframes dl-halo {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* The button itself */
.dl-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding: .95rem 1.9rem;
  border-radius: 1rem;
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: #020617;
  background: linear-gradient(180deg, #67e8f9 0%, #22d3ee 55%, #06b6d4 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.55),
    inset 0 -1px 0 rgba(0,0,0,.10),
    0 10px 24px -8px rgba(34,211,238,.55),
    0 4px 10px -3px rgba(34,211,238,.35);
  overflow: hidden;
  transition: transform .2s cubic-bezier(.16,1,.3,1),
              box-shadow .25s ease,
              background .25s ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

/* Shine sweep that periodically slides across */
.dl-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(115deg,
    transparent 30%,
    rgba(255,255,255,.7) 50%,
    transparent 70%);
  animation: dl-shine 3.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes dl-shine {
  0%   { left: -100%; }
  40%  { left: 100%; }
  100% { left: 100%; }
}

/* Hover state */
.dl-cta:hover {
  transform: translateY(-2px);
  background: linear-gradient(180deg, #a5f3fc 0%, #67e8f9 55%, #22d3ee 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.7),
    inset 0 -1px 0 rgba(0,0,0,.10),
    0 16px 36px -8px rgba(34,211,238,.7),
    0 6px 14px -3px rgba(34,211,238,.45);
}

/* Pressed state */
.dl-cta:active {
  transform: translateY(0);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.5),
    0 4px 12px -6px rgba(34,211,238,.5);
}

/* Keyboard focus */
.dl-cta:focus-visible {
  outline: 2px solid #22d3ee;
  outline-offset: 4px;
}

/* Text block — main + version subtitle */
.dl-cta-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
  position: relative;
  z-index: 1;
}
.dl-cta-main {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
}
.dl-cta-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  font-weight: 600;
  color: rgba(2,6,23,.65);
  letter-spacing: .04em;
  margin-top: 3px;
}

/* Icons */
.dl-cta-icon {
  width: 22px;
  height: 22px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  animation: dl-bob 2s ease-in-out infinite;
}
@keyframes dl-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(3px); }
}

.dl-cta-arrow {
  width: 18px;
  height: 18px;
  position: relative;
  z-index: 1;
  transition: transform .25s ease;
}
.dl-cta:hover .dl-cta-arrow {
  transform: translateX(3px);
}

/* Mobile — smaller, tighter */
@media (max-width: 480px) {
  .dl-cta {
    padding: .8rem 1.4rem;
    gap: .55rem;
    font-size: .9rem;
  }
  .dl-cta-main { font-size: .9rem; }
  .dl-cta-sub  { font-size: .65rem; }
  .dl-cta-icon { width: 18px; height: 18px; }
  .dl-cta-arrow{ width: 16px; height: 16px; }
}

/* Accessibility: kill all motion */
@media (prefers-reduced-motion: reduce) {
  .dl-cta-wrap::before,
  .dl-cta::before,
  .dl-cta-icon {
    animation: none;
  }
  .dl-cta:hover { transform: none; }
}

/* ============================================================
   SPLASH — keyframes only (referenced via Tailwind arbitrary values)
   ============================================================ */

@keyframes splash-halo-spin   { to { transform: rotate(360deg); } }
@keyframes splash-ring-spin   { to { transform: rotate(360deg); } }
@keyframes splash-ring-spin-2 { to { transform: rotate(-360deg); } }
@keyframes splash-orbit       { to { transform: rotate(360deg); } }

@keyframes splash-glow-pulse {
  0%, 100% { opacity: .55; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.15); }
}

@keyframes splash-logo-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

@keyframes splash-shimmer {
  to { background-position: 200% center; }
}

@keyframes splash-dot-bounce {
  0%, 60%, 100% { transform: translateY(0);    opacity: .35; }
  30%           { transform: translateY(-3px); opacity: 1;   }
}

@keyframes splash-dot-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .3; }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  #splash * { animation: none !important; }
}