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

:root {
  --bg: #191919;
  --surface: rgba(255, 255, 255, 0.05);
  --border: #242428;
  --text: #ffffff;
  --muted: #5a5a62;
  --accent: #e8c97a;
}

:root.light {
  --bg: #ffffff;
  --surface: rgba(0, 0, 0, 0.03);
  --border: #e2e0db;
  --text: #1a1a1a;
  --muted: #8a8a8e;
  --accent: #c4943a;
}

html {
  background: var(--bg);
  transition: background-color 0.4s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
  transition: color 0.4s ease;
}

.page {
  max-width: 480px;
  width: 100%;
  padding: 3rem 2rem;
}

/* ── Header ── */

.header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  animation: fade-in 0.5s ease both;
}

.logo {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.6rem;
  font-weight: 200;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.hint {
  margin-top: 0.8rem;
  font-size: 0.65rem;
  font-weight: 300;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.btn-theme {
  position: absolute;
  top: 0;
  right: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: none;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.btn-theme:hover {
  color: var(--text);
  border-color: var(--muted);
}

.btn-theme svg { pointer-events: none; }

/* ── Catalogue ── */

.catalogue {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.card:nth-child(1) { animation: fade-in 0.5s ease 0.1s both; }
.card:nth-child(2) { animation: fade-in 0.5s ease 0.2s both; }

.card:hover {
  border-color: var(--accent);
}

.card-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.card-body {
  flex: 1;
  min-width: 0;
}

.card-title {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 0.3rem;
}

.card-desc {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.4;
  margin-bottom: 0.6rem;
}

.card-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: border-color 0.25s ease;
}

.card:hover .tag {
  border-color: var(--muted);
}

/* ── Card Actions ── */

.card-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-action {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: none;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn-action:hover {
  color: var(--text);
  border-color: var(--muted);
}

.btn-action:active {
  transform: scale(0.92);
}

.btn-action svg { pointer-events: none; }

.btn-copy.copied {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Footer ── */

.footer {
  margin-top: 3rem;
  text-align: center;
  animation: fade-in 0.5s ease 0.3s both;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover { color: var(--text); }
.footer-link svg { pointer-events: none; }

.footer-copy {
  margin-top: 0.8rem;
  font-size: 0.6rem;
  font-weight: 300;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ── Animation ── */

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */

@media (max-width: 480px) {
  .page { padding: 2rem 1.2rem; }
  .card { padding: 1.1rem 1rem; }
  .tagline { font-size: 1.3rem; }
}

@media (max-width: 300px) {
  .page { padding: 1rem; }
  .card-tags { display: none; }
  .card-icon { display: none; }
}