:root {
  --bg-0: #05050a;
  --bg-1: #0b0a16;
  --ink: #f4f2ff;
  --ink-dim: #a9a4c7;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  font-family: "Sora", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-0);
  color: var(--ink);
  overflow: hidden;
  overscroll-behavior: none;
}

#bg-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(124, 58, 237, 0.22), transparent 60%),
    radial-gradient(ellipse 70% 50% at 85% 90%, rgba(14, 165, 233, 0.18), transparent 60%),
    radial-gradient(ellipse 100% 100% at 50% 50%, var(--bg-1), var(--bg-0) 80%);
  pointer-events: none;
}

#gl-canvas {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: block;
}

#css3d-container {
  position: fixed;
  inset: 0;
  z-index: 2;
  cursor: grab;
}
#css3d-container.dragging { cursor: grabbing; }

#cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 420px;
  height: 420px;
  margin-left: -210px;
  margin-top: -210px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 132, 255, 0.14), transparent 70%);
  pointer-events: none;
  z-index: 3;
  will-change: transform;
  transition: opacity 0.4s ease;
}

/* ---------- Hero ---------- */
#hero {
  position: fixed;
  top: 6vh;
  left: 0;
  right: 0;
  z-index: 4;
  text-align: center;
  pointer-events: none;
  padding: 0 1.5rem;
}

.eyebrow {
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--ink-dim);
  margin-bottom: 0.9rem;
  animation: fadeDown 1s ease both;
}

#hero-title {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, #fff 20%, #b98cff 45%, #6fd6ff 60%, #fff 80%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeUp 1s ease both, shimmer 7s linear infinite;
}

#hero-sub {
  max-width: 34rem;
  margin: 0.9rem auto 0;
  color: var(--ink-dim);
  font-size: clamp(0.9rem, 1.6vw, 1.05rem);
  line-height: 1.5;
  animation: fadeUp 1.2s ease 0.15s both;
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Hint bar ---------- */
#hint {
  position: fixed;
  bottom: 3.4rem;
  left: 0;
  right: 0;
  z-index: 4;
  text-align: center;
  pointer-events: none;
  font-size: 0.78rem;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
  opacity: 0;
  animation: fadeUp 1s ease 1.4s forwards;
}
#hint .dot { margin: 0 0.6rem; opacity: 0.4; }

#site-footer {
  position: fixed;
  bottom: 1rem;
  left: 0;
  right: 0;
  z-index: 4;
  text-align: center;
  font-family: "Space Mono", monospace;
  font-size: 0.68rem;
  color: rgba(169, 164, 199, 0.55);
  pointer-events: none;
}

/* ---------- Toast ---------- */
#toast {
  position: fixed;
  bottom: 8rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  z-index: 20;
  background: rgba(20, 18, 32, 0.9);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
  white-space: nowrap;
}
#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Cards (rendered via CSS3DRenderer) ---------- */
.card {
  width: 300px;
  height: 380px;
  transition: opacity 0.5s ease;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  /* CSS3DRenderer sets pointer-events:none on its internal camera wrapper divs
     so empty scene areas don't block clicks; since pointer-events inherits,
     cards must explicitly opt back in or they silently become unclickable. */
  pointer-events: auto;
}

.card-inner {
  width: 100%;
  height: 100%;
  border-radius: 26px;
  padding: 1.7rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.09), rgba(255,255,255,0.02) 40%),
    var(--card-grad);
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow:
    0 8px 40px -8px var(--card-glow, rgba(0,0,0,0.5)),
    inset 0 1px 0 rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.7s cubic-bezier(.2,.8,.2,1), box-shadow 0.35s ease, filter 0.35s ease, opacity 0.7s ease;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  position: relative;
  overflow: hidden;
}

.card-inner::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.25), transparent 55%);
  opacity: 0.6;
  pointer-events: none;
}

.card-inner:hover {
  transform: translateY(-10px) scale(1.045);
  box-shadow:
    0 20px 60px -10px var(--card-glow, rgba(0,0,0,0.6)),
    inset 0 1px 0 rgba(255,255,255,0.25);
}

.card.dimmed .card-inner:hover {
  transform: none;
  box-shadow:
    0 8px 40px -8px var(--card-glow, rgba(0,0,0,0.5)),
    inset 0 1px 0 rgba(255,255,255,0.15);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 1.1rem 0 0.4rem;
  letter-spacing: -0.01em;
}

.card-tagline {
  font-size: 0.92rem;
  line-height: 1.45;
  color: rgba(244, 242, 255, 0.82);
  margin: 0;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  color: rgba(244, 242, 255, 0.75);
  padding-top: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.card-arrow {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease;
}
.card-inner:hover .card-arrow {
  transform: rotate(45deg);
  background: rgba(255,255,255,0.28);
}

/* Coming soon state */
.card.dimmed .card-inner {
  filter: grayscale(0.75) brightness(0.62);
  cursor: default;
}
.card.dimmed .card-inner:hover {
  filter: grayscale(0.6) brightness(0.7);
}

.pre-reveal .card-inner {
  opacity: 0;
  transform: translateY(40px) scale(0.8);
}

.ribbon {
  position: absolute;
  top: 18px;
  right: -34px;
  transform: rotate(40deg);
  background: linear-gradient(90deg, #ffb703, #fb8500);
  color: #201400;
  font-family: "Space Mono", monospace;
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  padding: 0.3rem 2.4rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.35);
}

@media (max-width: 640px) {
  #hero { top: 4vh; }
  #hero-sub { display: none; }
  #hint { bottom: 2.2rem; font-size: 0.68rem; }
  #site-footer { display: none; }
}