:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-soft: #0b1220;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --danger-text: #fecaca;
}

* { box-sizing: border-box; }

/* Atrybut hidden musi wygrac z `display` ustawionym w klasie - bez tego
   ukryte sekcje (np. widok rozmowy) i tak byly widoczne. */
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1rem;
  font-family: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.card {
  width: min(30rem, 100%);
  background: var(--panel);
  border-radius: 1rem;
  padding: 1.5rem;
  display: grid;
  gap: 0.9rem;
}

h1 { margin: 0; font-size: 1.4rem; }
.lead { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

button, input, .btn {
  font: inherit;
  color: var(--text);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.6rem 0.8rem;
}

.btn {
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.btn:hover:not(:disabled) { opacity: 0.85; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { border-color: var(--accent); color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.field { display: grid; gap: 0.3rem; font-size: 0.9rem; }
.field span { color: var(--text-muted); }
.field input { width: 100%; }

.actions { display: flex; gap: 0.6rem; margin-top: 0.6rem; }
.actions .btn { flex: 1; }

.message { margin: 0; min-height: 1.2rem; font-size: 0.9rem; color: var(--accent); }
.message[data-error="true"] { color: var(--danger-text); }