/* Demo page: a slim bar above a full-height frame running the real app. */
.demo-page { height: 100dvh; display: flex; flex-direction: column; overflow: hidden; background: var(--ink); }

.demo-bar {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: 0.55rem var(--gutter);
  background: var(--ink); color: #dfeaee; border-bottom: 1px solid #244b58;
  font-size: 0.92rem;
}
.demo-bar__brand { display: inline-flex; align-items: center; gap: 0.5rem; color: #fff; text-decoration: none; font-family: var(--font-display); font-weight: 700; }
.demo-bar__brand svg { color: #9fd0dc; }
.demo-bar__address { display: inline-flex; align-items: center; gap: 0.35rem; font-family: var(--font-mono); font-size: 0.82rem; color: #9fb7c0; background: #163d49; border-radius: 6px; padding: 0.3rem 0.6rem; min-width: 12rem; }
.demo-bar__host { color: #6f8f9a; }
.demo-bar__roles, .demo-bar__tools { display: inline-flex; align-items: center; gap: 0.4rem; }
.demo-bar__roles { margin-left: auto; }
.demo-bar__hint { color: #9fb7c0; margin-right: 0.2rem; }
.demo-bar button, .demo-bar__back {
  font: inherit; font-weight: 600; color: #e8f1f4; background: #1f4c5b; border: 1px solid #2f6a7c;
  border-radius: 999px; padding: 0.35rem 0.85rem; cursor: pointer; text-decoration: none;
}
.demo-bar button, .demo-bar__back { transition: background-color 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1); }
.demo-bar button:hover, .demo-bar__back:hover { background: var(--teal-bright); border-color: var(--teal-bright); color: #fff; }
.demo-bar button:active, .demo-bar__back:active { transform: translateY(1px) scale(0.97); }
.demo-bar button.is-active { background: var(--teal-bright); border-color: #9fd0dc; color: #fff; }
#btn-reset { background: transparent; }
@media (max-width: 760px) {
  .demo-bar__address { display: none; }
  .demo-bar__roles { margin-left: 0; }
}

.demo-stage { position: relative; flex: 1; min-height: 0; background: var(--paper); }
.app-frame { width: 100%; height: 100%; border: 0; display: block; background: var(--paper); }

/* Loading screen */
.loader { position: absolute; inset: 0; display: grid; place-items: center; padding: var(--gutter); background: var(--paper); transition: opacity 300ms ease; z-index: 2; }
.loader[data-state="done"] { opacity: 0; pointer-events: none; }
.loader__card { width: min(34rem, 100%); }
.loader__mark { color: var(--teal); margin-bottom: 1rem; }
.loader h1 { font-size: 1.9rem; margin-bottom: 0.4rem; }
.loader__lede { color: var(--text-soft); font-size: 1.05rem; }
.loader__steps { list-style: none; padding: 0; margin: 1.6rem 0; display: grid; gap: 0.6rem; }
.loader__steps li { display: flex; align-items: center; gap: 0.75rem; color: var(--text-soft); }
.loader__steps .dot { width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--mist-strong); flex: none; }
.loader__steps li[data-state="active"] { color: var(--ink); font-weight: 600; }
.loader__steps li[data-state="active"] .label { background: linear-gradient(90deg, var(--ink) 0%, var(--ink) 40%, var(--teal-bright) 50%, var(--ink) 60%, var(--ink) 100%); background-size: 220% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shimmer 1.8s linear infinite; }
@keyframes shimmer { to { background-position: -120% 0; } }
@media (prefers-reduced-motion: reduce) { .loader__steps li[data-state="active"] .label { animation: none; background: none; color: var(--ink); } }
.loader__steps li[data-state="active"] .dot { border-color: var(--teal); background: var(--teal-wash); animation: pulse 1.1s ease-in-out infinite; }
.loader__steps li[data-state="done"] .dot { border-color: var(--green); background: var(--green); }
@keyframes pulse { 50% { transform: scale(1.35); } }
@media (prefers-reduced-motion: reduce) { .loader__steps li[data-state="active"] .dot { animation: none; } }
.loader__error { border-left: 3px solid var(--teal-bright); padding: 0.2rem 0 0.2rem 1rem; margin: 1rem 0; }
.loader__error .detail { color: var(--text-soft); font-size: 0.98rem; }
.loader__note { font-size: 0.92rem; color: var(--text-soft); margin: 0; }
.loader[data-state="error"] .loader__steps { opacity: 0.5; }