/* blackbox.io placeholder */

:root {
  --bg: #0a0a0c;
  --panel: #111114;
  --line: #232329;
  --ink: #f5f5f7;
  --ink-soft: #9a9aa5;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* faint grid texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 10%, transparent 75%);
  opacity: 0.35;
  pointer-events: none;
}

/* soft ambient glow behind everything */
body::after {
  content: "";
  position: fixed;
  width: 70vmax;
  height: 70vmax;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.16), transparent 60%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.stage {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
}

/* the literal "black box" mark */
.box {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  margin-bottom: 36px;
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.box::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: conic-gradient(from 0deg, var(--violet), var(--cyan), var(--violet));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: spin 8s linear infinite;
}

.box::after {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 28px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35), transparent 70%);
  filter: blur(6px);
  z-index: -1;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
    transform: scale(0.96);
  }
  50% {
    opacity: 1;
    transform: scale(1.04);
  }
}

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.25);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 30%, var(--ink-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h1 span {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 18px 0 40px;
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 36ch;
}

.contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.contact:hover {
  border-color: var(--violet);
  background: rgba(139, 92, 246, 0.08);
  transform: translateY(-1px);
}

.contact .arrow {
  transition: transform 0.2s ease;
}

.contact:hover .arrow {
  transform: translateX(3px);
}

footer {
  position: fixed;
  bottom: 24px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.78rem;
  color: #55555f;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  .box,
  .box::before,
  .box::after {
    animation: none;
  }
}