:root {
  --bg: #14171c;
  --surface: #1e232b;
  --surface-alt: #262c36;
  --border: #333b47;
  --text: #f4f6f8;
  --text-dim: #9aa4b2;
  --accent: #f5a623;
  --ok: #3ddc84;
  --danger: #ff5c5c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 {
  margin: 0;
  font-size: 1.75rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.reloj {
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
}

.nav-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

.status {
  font-size: 0.95rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text-dim);
}

.status.ok {
  color: var(--ok);
  background: rgba(61, 220, 132, 0.12);
}

.status.error {
  color: var(--danger);
  background: rgba(255, 92, 92, 0.12);
}

main {
  padding: 2rem;
}

.empty {
  text-align: center;
  font-size: 1.5rem;
  color: var(--text-dim);
  margin-top: 4rem;
}

.filtros {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-dim);
}

.filtros input[type="date"] {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
}

.btn-secundario {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn-secundario:hover {
  border-color: var(--text-dim);
}

.card-historial {
  opacity: 0.92;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  animation: aparecer 0.25s ease-out;
}

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

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 1.05rem;
}

.mesera {
  font-weight: 600;
}

.hora {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.texto {
  margin: 0;
  font-size: 1.3rem;
  line-height: 1.4;
  flex: 1;
  white-space: pre-wrap;
  word-break: break-word;
}

.btn-listo {
  align-self: stretch;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 10px;
  background: var(--ok);
  color: #0b1f14;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.btn-listo:hover {
  filter: brightness(1.08);
}

.btn-listo:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  main {
    padding: 1rem;
  }
}