/* ===========================
   Botones
=========================== */
.btn {
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  transition: background var(--transition), transform 0.1s, opacity var(--transition);
}

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 14px 48px;
  font-size: 1.1rem;
  border-radius: 40px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.btn-primary:hover { opacity: 0.88; }

.btn-secondary {
  background: var(--surface);
  color: var(--text-muted);
  padding: 12px 16px;
  font-size: 1.1rem;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.btn-secondary:hover { color: var(--text); background: var(--surface-alt); }

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.btn-icon:hover { color: var(--text); background: var(--surface); }

/* ===========================
   Modal
=========================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  width: 90%;
  max-width: 360px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 16px 24px 20px;
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
}

/* ===========================
   Campos de configuración
=========================== */
.setting-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
}

.setting-field input[type="number"] {
  width: 70px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  text-align: center;
  outline: none;
  transition: border-color var(--transition);
}

.setting-field input[type="number"]:focus {
  border-color: var(--accent);
}

/* Toggle switch */
.setting-toggle input[type="checkbox"] {
  appearance: none;
  width: 44px;
  height: 24px;
  background: var(--surface-alt);
  border-radius: 40px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}

.setting-toggle input[type="checkbox"]::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: left var(--transition);
}

.setting-toggle input[type="checkbox"]:checked {
  background: var(--accent);
}

.setting-toggle input[type="checkbox"]:checked::after {
  left: 23px;
}