/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.7rem 1.1rem;
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.1s, background 0.15s, border-color 0.15s;
  text-decoration: none;
  user-select: none;
}

.btn:hover {
  background: var(--bg-elev);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--accent);
  color: #1a1925;
  border-color: var(--accent);
}

.btn--primary:hover {
  background: #ff9d33;
  border-color: #ff9d33;
}

.btn--danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.btn--success {
  background: var(--success);
  color: #07221a;
  border-color: var(--success);
}

.btn--ghost {
  background: transparent;
}

.btn--block {
  width: 100%;
}

.btn--lg {
  font-size: 1.1rem;
  padding: 0.9rem 1.3rem;
  min-height: 52px;
}

/* Card / panel */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card + .card {
  margin-top: 1rem;
}

/* Toast */
#toast-container {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  pointer-events: none;
  max-width: 90vw;
}

.toast {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.92rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.25s, transform 0.25s;
  box-shadow: var(--shadow);
}

.toast--show {
  opacity: 1;
  transform: translateY(0);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--danger {
  background: rgba(229, 49, 112, 0.15);
  color: var(--danger);
}

.badge--success {
  background: rgba(44, 182, 125, 0.15);
  color: var(--success);
}

/* Code block (room code) */
.room-code {
  display: inline-block;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--accent);
}

/* Modal simple */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  padding: 0;
}

.modal {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 1.5rem;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}

@media (min-width: 640px) {
  .modal-backdrop {
    align-items: center;
    padding: 1rem;
  }
  .modal {
    border-radius: var(--radius);
  }
}

.form-row {
  margin-bottom: 1rem;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.error-msg {
  background: rgba(229, 49, 112, 0.12);
  color: #ff7aa9;
  border: 1px solid rgba(229, 49, 112, 0.3);
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}