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

html,
body {
  min-height: 100%;
}

body {
  font-family: "IBM Plex Mono", monospace;
  background: #000;
  color: #fff;
  overflow-x: hidden;
}

/* ── Gate ───────────────────────────────────────────── */

.gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: #000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  z-index: 5;
}

.gate.hidden {
  opacity: 0;
  visibility: hidden;
}

.enter {
  background: none;
  border: none;
  color: #555;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  padding: 1rem 1.5rem;
}

.enter:hover {
  color: #fff;
}

.enter-sub {
  display: none;
}

/* ── App layout ─────────────────────────────────────── */

.app {
  width: min(560px, 88vw);
  margin: 0 auto;
  padding: 18vh 0 6rem;
}

.hidden {
  opacity: 0;
}

/* ── Hero ───────────────────────────────────────────── */

.hero {
  margin-bottom: 2rem;
}

.kicker {
  display: none;
}

h1,
h2,
h3 {
  font-family: "Syne", sans-serif;
}

h1 {
  font-size: clamp(2.4rem, 8vw, 3.8rem);
  font-weight: 800;
  line-height: 1;
  color: #fff;
  margin-bottom: 0.5rem;
}

.accent {
  color: #fff;
}

#typing {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  font-weight: 400;
  color: #555;
  letter-spacing: 0.06em;
  min-height: 1.3em;
  margin-top: 0.4rem;
}

.lead {
  margin-top: 1.2rem;
  max-width: 52ch;
  color: #aaa;
  font-size: 0.9rem;
  line-height: 1.65;
  font-family: "IBM Plex Mono", monospace;
}

/* ── Panels ─────────────────────────────────────────── */

.panel {
  margin: 2rem 0 0;
}

.panel h2 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #444;
  margin-bottom: 0.85rem;
}

.panel p {
  color: #aaa;
  font-size: 0.88rem;
  line-height: 1.7;
}

.panel p + p {
  margin-top: 0.6rem;
}

/* ── Stack tags ─────────────────────────────────────── */

.grid-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.grid-list li {
  border: 1px solid #333;
  padding: 0.3rem 0.7rem;
  font-size: 0.82rem;
  color: #ccc;
}

/* ── Timeline ───────────────────────────────────────── */

.timeline {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.timeline li {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 0.7rem;
  align-items: start;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  margin-top: 0.45rem;
  background: #555;
}

.timeline h3 {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
  font-weight: 500;
  color: #ddd;
  margin-bottom: 0.15rem;
}

.timeline p {
  color: #666;
  font-size: 0.82rem;
  line-height: 1.5;
}

/* ── Footer ─────────────────────────────────────────── */

footer {
  margin-top: 2.5rem;
  display: flex;
  gap: 1.8rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

footer a {
  color: #444;
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: #fff;
}

a {
  color: #ccc;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #fff;
}

/* ── Reveal ─────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.reveal.visible {
  opacity: 1;
}

@media (max-width: 600px) {
  .app {
    width: 100%;
    padding: 12vh 1.4rem 5rem;
  }

  h1 {
    font-size: 2.6rem;
  }

  .lead {
    font-size: 0.85rem;
  }

  .panel {
    margin-top: 1.6rem;
  }

  .grid-list {
    gap: 0.4rem;
  }

  .grid-list li {
    font-size: 0.78rem;
    padding: 0.28rem 0.6rem;
  }

  .timeline li {
    gap: 0.5rem;
  }

  .timeline h3 {
    font-size: 0.84rem;
  }

  .timeline p {
    font-size: 0.78rem;
  }

  footer {
    flex-direction: column;
    gap: 0.7rem;
    margin-top: 2rem;
  }

  footer a {
    font-size: 0.82rem;
    padding: 0.2rem 0;
  }
}