/* Demo UI — mockups legíveis (Controle / Projeção / Stage / Remote) */
.demo-shell {
  --demo-bg: #0c0c10;
  --demo-panel: #16161e;
  --demo-line: rgba(255, 255, 255, 0.1);
  --demo-gold: #e0d4a0;
  --demo-muted: rgba(246, 244, 241, 0.78);
  --demo-coral: #ff6b5c;
  --demo-text: #f6f4f1;
  border-radius: 1.25rem;
  border: 1px solid var(--demo-line);
  background: var(--demo-bg);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 0.95rem;
  color: var(--demo-text);
  isolation: isolate;
  position: relative;
  z-index: 1;
}

.demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.demo-tab {
  appearance: none;
  border: 1px solid var(--line, rgba(255, 255, 255, 0.1));
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted, rgba(246, 244, 241, 0.75));
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.demo-tab:hover {
  color: #fff;
  border-color: rgba(255, 140, 110, 0.4);
}

.demo-tab.is-active {
  background: linear-gradient(135deg, #ff7a62, #e43d3d);
  border-color: transparent;
  color: #fff;
}

.demo-panel {
  display: none;
}

.demo-panel.is-active {
  display: block;
}

.demo-caption {
  margin: 1.1rem 0 0;
  color: var(--muted, rgba(246, 244, 241, 0.75));
  font-size: 1rem;
  line-height: 1.55;
  max-width: 46rem;
}

/* Dual: Controle em cima, Projeção embaixo (legível em qualquer largura) */
.demo-dual {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  padding: 0.85rem;
  background: #08080c;
}

/* Controle: sidebar + ordem + prévia (3 colunas) */
.demo-control {
  display: grid;
  grid-template-columns: 4.5rem minmax(11rem, 15rem) minmax(0, 1fr);
  min-height: 340px;
  border: 1px solid var(--demo-line);
  border-radius: 0.85rem;
  overflow: hidden;
  background: var(--demo-bg);
}

.demo-side {
  background: #0a0a0e;
  border-right: 1px solid var(--demo-line);
  padding: 0.65rem 0.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: center;
}

.demo-side span {
  width: 100%;
  max-width: 3.4rem;
  min-height: 2.55rem;
  border-radius: 0.55rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--demo-muted);
  border: 1px solid transparent;
  padding: 0.2rem;
  text-align: center;
  line-height: 1.15;
}

.demo-side span.is-on {
  background: rgba(255, 92, 92, 0.16);
  color: var(--demo-gold);
  border-color: rgba(212, 198, 141, 0.35);
}

.demo-order {
  background: var(--demo-panel);
  border-right: 1px solid var(--demo-line);
  padding: 0.85rem 0.75rem;
  overflow: auto;
  min-width: 0;
}

.demo-order h4 {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--demo-gold);
  font-weight: 700;
}

.demo-order-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.55rem 0.6rem;
  border-radius: 0.5rem;
  margin-bottom: 0.35rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--demo-muted);
  cursor: pointer;
  font: inherit;
}

.demo-order-item strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: inherit;
  line-height: 1.3;
  word-break: break-word;
}

.demo-order-item small {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.72rem;
  opacity: 0.75;
}

.demo-order-item.is-active {
  background: rgba(255, 92, 92, 0.14);
  border-color: rgba(255, 140, 110, 0.4);
  color: #fff;
}

.demo-order-item:hover {
  border-color: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.demo-center {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #101016;
}

.demo-preview {
  flex: 1;
  margin: 0.85rem;
  border-radius: 0.75rem;
  background: linear-gradient(165deg, #1a1520 0%, #0d0d12 100%);
  border: 1px solid var(--demo-line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem 1.25rem;
  position: relative;
  min-height: 180px;
}

.demo-preview .on-air {
  position: absolute;
  top: 0.65rem;
  left: 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #ff9a7a;
}

.demo-preview h3 {
  margin: 0.4rem 0 0.5rem;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  font-weight: 600;
  color: #fff;
  line-height: 1.25;
  max-width: 100%;
  word-break: break-word;
}

.demo-preview p {
  margin: 0;
  color: var(--demo-muted);
  max-width: 28rem;
  line-height: 1.5;
  font-size: 0.95rem;
}

.demo-dock {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0.75rem 1rem 0.95rem;
  border-top: 1px solid var(--demo-line);
  background: #0e0e14;
}

.demo-dock button {
  appearance: none;
  min-width: 2.75rem;
  min-height: 2.5rem;
  padding: 0 0.9rem;
  border-radius: 0.55rem;
  border: 1px solid var(--demo-line);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.demo-dock button:hover {
  border-color: rgba(255, 140, 110, 0.5);
  background: rgba(255, 140, 110, 0.12);
}

.demo-dock label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--demo-muted);
  font-size: 0.9rem;
  margin-left: 0.25rem;
}

.demo-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.85rem;
  padding: 0.65rem 0.95rem;
  border-top: 1px solid var(--demo-line);
  background: var(--demo-panel);
  color: var(--demo-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.demo-meta-bar strong {
  color: var(--demo-gold);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.demo-chip-row span {
  font-size: 0.75rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--demo-line);
  color: var(--demo-muted);
  background: rgba(0, 0, 0, 0.25);
}

/* Projeção — largura total abaixo do controle */
.demo-screen {
  aspect-ratio: 16 / 9;
  max-height: 320px;
  width: 100%;
  border-radius: 0.75rem;
  border: 1px solid var(--demo-line);
  background: linear-gradient(160deg, #1c1424, #0a0a0e);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem 1.25rem;
  position: relative;
}

.demo-screen .label {
  position: absolute;
  top: 0.55rem;
  right: 0.65rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--demo-gold);
  font-weight: 700;
}

.demo-screen h3 {
  margin: 0 0 0.45rem;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  color: #fff;
  line-height: 1.2;
}

.demo-screen p {
  margin: 0;
  color: rgba(246, 244, 241, 0.85);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  max-width: 36rem;
  line-height: 1.5;
  white-space: pre-line;
}

/* Stage */
.demo-stage-bar {
  display: flex;
  gap: 0.45rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--demo-line);
  background: #101016;
  flex-wrap: wrap;
  align-items: center;
}

.demo-stage-bar strong {
  margin-right: auto;
  font-size: 0.85rem;
  color: var(--demo-gold);
}

.demo-stage-bar button {
  appearance: none;
  border: 1px solid var(--demo-line);
  background: transparent;
  color: var(--demo-muted);
  border-radius: 0.5rem;
  padding: 0.45rem 0.8rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.demo-stage-bar button.is-active {
  background: rgba(212, 198, 141, 0.14);
  border-color: rgba(212, 198, 141, 0.45);
  color: var(--demo-gold);
}

.demo-stage-body {
  min-height: 240px;
  padding: 1.5rem 1.75rem;
  display: grid;
  gap: 0.85rem;
  align-content: center;
}

.demo-stage-body[data-layout="singer"] {
  text-align: center;
  background: #121018;
}

.demo-stage-body[data-layout="singer"] .lyrics-line {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  line-height: 1.55;
  color: #fff;
}

.demo-stage-body[data-layout="musician"] {
  grid-template-columns: 1fr 1fr;
  background: #121218;
}

.demo-stage-body[data-layout="musician"] .chord {
  font-family: ui-monospace, monospace;
  color: var(--demo-gold);
  font-size: 0.95rem;
  white-space: pre-wrap;
  line-height: 1.5;
}

.demo-stage-body[data-layout="preacher"] {
  background: #0e1218;
}

.demo-stage-body[data-layout="preacher"] .tele {
  border-left: 3px solid var(--demo-coral);
  padding-left: 1rem;
  color: var(--demo-muted);
  line-height: 1.6;
  font-size: 1rem;
  white-space: pre-line;
}

/* Remote */
.demo-remote {
  max-width: 320px;
  margin: 0 auto;
  padding: 1.25rem;
  background: #121218;
}

.demo-remote-status {
  text-align: center;
  margin-bottom: 1rem;
  color: var(--demo-muted);
  font-size: 0.9rem;
}

.demo-remote-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

.demo-remote-grid button {
  appearance: none;
  min-height: 3.25rem;
  border-radius: 0.75rem;
  border: 1px solid var(--demo-line);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
}

.demo-remote-grid button.primary {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #ff7a62, #e43d3d);
  border-color: transparent;
}

.demo-remote-grid button.warn {
  grid-column: 1 / -1;
  border-color: rgba(255, 140, 110, 0.4);
  color: #ff8a6a;
}

/* Flow steps */
.flow-ops {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  counter-reset: ops;
}

.flow-ops article {
  position: relative;
  padding: 1.25rem 1.1rem;
  border-radius: 1.1rem;
  border: 1px solid var(--line, rgba(255, 255, 255, 0.08));
  background: rgba(255, 255, 255, 0.03);
}

.flow-ops article::before {
  counter-increment: ops;
  content: counter(ops);
  display: inline-flex;
  width: 1.75rem;
  height: 1.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  margin-bottom: 0.65rem;
  background: linear-gradient(135deg, #ff7a62, #e43d3d);
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
}

.flow-ops h3 {
  margin: 0 0 0.35rem;
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.15rem;
  color: #fff;
}

.flow-ops p {
  margin: 0;
  color: var(--muted, rgba(246, 244, 241, 0.75));
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 720px) {
  .demo-control {
    grid-template-columns: 1fr;
  }

  .demo-side {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    border-right: none;
    border-bottom: 1px solid var(--demo-line);
    padding: 0.55rem;
  }

  .demo-side span {
    width: auto;
    min-width: 3.2rem;
    padding: 0.35rem 0.45rem;
  }

  .demo-order {
    border-right: none;
    border-bottom: 1px solid var(--demo-line);
    max-height: 200px;
  }

  .demo-screen {
    max-height: none;
    aspect-ratio: 16 / 10;
  }

  .demo-stage-body[data-layout="musician"] {
    grid-template-columns: 1fr;
  }

  .flow-ops {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .flow-ops {
    grid-template-columns: 1fr;
  }
}