/* Layout — containers + headers shared across pages */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}
.container.narrow { max-width: 520px; }
.container.medium { max-width: 720px; }

.page-header {
  text-align: center;
  padding-top: 2rem;
  margin-bottom: 2rem;
}
.page-header h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--amber-light);
  text-shadow: 0 0 30px rgba(251, 191, 36, 0.45);
  letter-spacing: 0.05em;
  margin: 0.5rem 0;
}
.page-header .subtitle {
  font-family: var(--serif);
  font-style: italic;
  color: var(--text-dim);
  font-size: clamp(1rem, 2.2vw, 1.25rem);
}

.center-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* Top navigation bar (logged-in pages) */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: rgba(10, 4, 32, 0.55);
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand {
  display: flex; align-items: center; gap: 0.65rem;
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--amber-light);
}
.topbar .brand .brand-icon { font-size: 1.5rem; }
.topbar .actions { display: flex; gap: 0.6rem; }
.topbar .topbtn {
  font-size: 0.88rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: rgba(30, 27, 75, 0.5);
  border: 1px solid var(--card-border);
  color: var(--text);
  transition: background 0.15s;
}
.topbar .topbtn:hover { background: rgba(245, 158, 11, 0.12); }
.topbar .topbtn.danger { color: #fca5a5; border-color: rgba(244, 63, 94, 0.4); }

@media (max-width: 600px) {
  .topbar { padding: 0.65rem 0.9rem; gap: 0.5rem; }
  .topbar .brand { font-size: 0.95rem; }
}